Identification_Information: Citation: Citation_Information: Originator: Solie, D.N. Originator: Athey, J.E. Publication_Date: 2015 Title: Preliminary evaluation of bedrock potential for naturally occurring asbestos in Alaska Geospatial_Data_Presentation_Form: report and digital data Series_Information: Series_Name: Miscellaneous Publication Issue_Identification: MP 157 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 26 p. Online_Linkage: http://dx.doi.org/10.14509/29447 Description: Abstract: Naturally occurring asbestos (NOA) develops in predictable geologic settings worldwide. Various geologic units throughout Alaska include rock types that could potentially host naturally occurring asbestos minerals. This report and digital data release show geologic map units throughout Alaska rated according to their interpreted potential to host NOA. To summarize locations of known asbestos occurrences, we searched the U.S. Geological Survey's (USGS's) Alaska Resource Data File (http://ardf.wr.usgs.gov) and Mineral Resource Data System (http://mrdata.usgs.gov/mineral-resources/mrds-ak.html) for references to asbestos in Alaska and compiled the resulting 62 documented asbestos occurrences. To better predict additional locations where NOA may exist in Alaska, we compiled published geologic mapping throughout the state, developed a set of criteria to rate relative NOA potential according to rock type, and assigned a rating to each bedrock map unit. The products of this work are (1) a report and summary maps that present an overview of the problem and discussion of the data compilation methods and information sources, (2) a table listing known occurrences of naturally occurring asbestos in Alaska, and (3) digital geologic maps that portray the extent of various bedrock units that have been mapped throughout Alaska and a ranking of their interpreted relative potential for hosting asbestos minerals. Purpose: Naturally occurring asbestos (NOA) develops in predictable geologic settings worldwide. Various geologic units throughout Alaska include rock types that could potentially host naturally occurring asbestos minerals. To better predict where NOA may exist in Alaska, DOT&PF contracted the Alaska Division of Geological & Geophysical Surveys (DGGS) to evaluate the bedrock geology of the state for NOA potential. Supplemental_Information: >ARDF_MRDS: Table of known occurrences of naturally occurring asbestos (NOA) in Alaska. >NOA_polygons: Digital geologic maps that portray the extent of various bedrock units that have been mapped throughout Alaska and a ranking of their interpreted relative potential for hosting asbestos minerals Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1970 Ending_Date: 2011 Currentness_Reference: publication date Status: Progress: complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -179.999999 East_Bounding_Coordinate: -129.992235 North_Bounding_Coordinate: 71.406235 South_Bounding_Coordinate: 51.583033 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Theme_Keyword: Alaska Statewide Maps Theme_Keyword: Asbestos Theme_Keyword: Construction Materials Theme_Keyword: Derivative Theme_Keyword: Engineering Geologic Map Theme_Keyword: Historic Mine Theme_Keyword: Mineral Localities Theme_Keyword: Mineral Prospect Theme_Keyword: Mountain Leather Theme_Keyword: Tremolite Theme_Keyword: Ultramafic Place: Place_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Place_Keyword: Alaska Statewide Quadrangle Access_Constraints: This report, map, and/or dataset is available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below). Use_Constraints: Any hard copies or published datasets utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. The user specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. The State of Alaska makes no express or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Alaska Division of Geological & Geophysical Surveys Contact_Position: GIS Manager Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: (907)451-5020 Contact_Electronic_Mail_Address: dggsgis@alaska.gov Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays Data_Set_Credit: This project was supported by DOT&PF funds. We thank Janelle R. White and Barry A. Benko (DOT&PF) for their help in guiding this project, and De Anne Stevens (DGGS), who was instrumental in developing the scope of this study. Thanks to Liuda Eichelberger for initially downloading and assembling the digital geologic maps, and to Colby Wright for help with digitizing maps. Thanks to the University of Alaska Museum Earth Sciences Department, Bob Rogers, Doyon, Limited, and others for providing photographs. We thank Bradley Van Gosen (USGS) and De Anne Stevens for their helpful reviews. Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Interpretation of NOA potential was based on published rock unit descriptions. The percentages of NOA-favorable rocks in each unit were not always reported, necessarily resulting in subjective interpretations for this project (for example, is the amount of amphibolite in a metamorphic unit moderate, minor, or trace?). Correlative map units on adjacent maps may be rated differently depending on how NOA-favorable lithologies (types of rocks) are described in the source publications. This map series is in tended as a guide to bedrock areas where naturally occurring asbestos might occur. Just because a map shows potential for NOA does not mean asbestos will actually be there; conversely, significant amounts of asbestos could be present in areas shown as having zero to low potential for NOA. Local geology must be examined carefully and samples need to be collected and tested to verify the actual presence or absence and amount of NOA in an area. Known occurrences of naturally occurring asbestos (NOA) in Alaska. Occurrences were derived from the Alaska Resource Data File (http://ardf.wr.usgs.gov/welcome.html) and Mineral Resource Data System: Alaska (http://mrdata.usgs.gov/mineral-resources/mrds-ak.html). The Alaska Resource Data File (ARDF) data were compiled by the U.S. Geological Survey (USGS) 'using published literature, unpublished reports and data from various sources including the United States Bureau of Mines, USGS, and industry' (ARDF website). The Mineral Resource Data System (MRDS) 'describes metallic and nonmetallic mineral resources throughout the world. Included are deposit name, location, commodity, deposit description, geologic characteristics, production, reserves, resources, and references. It includes the original MRDS and MAS/MILS data' (MRDS website). Both databases were searched for references to asbestos; search results were combined and duplications deleted. Identifying ARDF and/or MRDS numbers are given in the table. A comprehensive literature search was not part of the scope of this project and hence, if there are occurrences not included in either ARDF or MRDS, they will not be in the table. The limitations and cautions noted above provide a brief overview of the limitations of the data, users will find significant additional detail in the accompanying manuscript. These limitations should be carefully considered prior to use of the information presented in this publication. Logical_Consistency_Report: All polygon features were topologically validated using ArcGIS for Desktop. Completeness_Report: At the time of this study, some geologic maps were not yet available digitally. In those map areas, we scanned and digitized from raster images of published maps, combining geologic data from sources with different scales and levels of detail. In these digitized maps, we generalized and combined map units that were assigned either a NOA potential of zero to low or were classified as surficial deposits. Thus, specific detailed data on these individual original map units are not available. Units with medium- and high-rated NOA potential were digitized individually and their NOA-favorable rock types recorded. However, significant additional work would be required to fully resolve both uncertainties noted in the originating data sources or inconsistencies between various data sources. A comprehensive literature search for all reported occurrences of asbestos minerals in Alaska was not part of the scope of this project and hence, if there are occurrences not included in either ARDF or MRDS, they will not be in the table. Surficial deposits (which could contain redistributed NOA) were not evaluated for NOA. Locations of ARDF and MRDS asbestos occurrences were not field checked as part of this project. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Authors compiled features from georeferenced scans and digitized vector files of the original geologic source maps. We preferentially chose to use digital maps with the most current and descriptive bedrock lithologic information, generally as close to 1:250,000 scale as possible. Although the user may increase the displayed scale, uncertainties in bedrock unit extent and interpretation remain tied to original map scale and unit descriptions. Users must recognize these limitations when zooming in farther than the originating mapped scale for a given unit and treat resulting visual representations with appropriate caveats. Accuracy of plotted locations of ARDF and MRDS data varies. As stated on the MRDS website, '...many records were located on the basis of published reports containing imprecise or scant information on the specific geographic location.' Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Beikman, H.M. Publication_Date: 1975 Title: Preliminary geologic map of southeastern Alaska Series_Information: Series_Name: Miscellaneous Field Studies Map Issue_Identification: MF 673 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 2 sheets, scale 1:1,000,000 Online_Linkage: http://dggs.alaska.gov/pubs/id/13289 Source_Scale_Denominator: 1000000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1975 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Beikman, H.M., 1975 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Beikman, H.M. Publication_Date: 1980 Title: Geologic map of Alaska Series_Information: Series_Name: Unnumbered Report Issue_Identification: Beikman, H.M., 1980 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 p., 1 sheet, scale 1:2,500,000 Online_Linkage: http://dggs.alaska.gov/pubs/id/20521 Source_Scale_Denominator: 2500000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1980 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Beikman, H.M., 1980 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Brosge, W.P. Originator: Reiser, H.N. Originator: Dutro, J.T., Jr. Originator: Detterman, R.L. Publication_Date: 1979 Title: Bedrock geologic map of the Philip Smith Mountains Quadrangle, Alaska Series_Information: Series_Name: Miscellaneous Field Studies Map Issue_Identification: MF 879-B Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 2 sheets, scale 1:250,000 Online_Linkage: http://dggs.alaska.gov/pubs/id/13356 Source_Scale_Denominator: 250000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1979 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Brosge, W.P. and others, 1979 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Curtis, S.M. Originator: Ellersieck, Inyo Originator: Mayfield, C.F. Originator: Tailleur, I.L. Publication_Date: 1984 Title: Reconnaissance geologic map of the southwestern Misheguk Mountain Quadrangle, Alaska Series_Information: Series_Name: Miscellaneous Investigations Series Map Issue_Identification: I 1502 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 2 sheets, scale 1:63,360 Online_Linkage: http://dggs.alaska.gov/pubs/id/12882 Source_Scale_Denominator: 63360 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1984 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Curtis, S.M. and others, 1984 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Curtis, S.M. Originator: Ellersieck, Inyo Originator: Mayfield, C.F. Originator: Tailleur, I.L. Publication_Date: 1990 Title: Reconnaissance geologic map of the De Long Mountains A-1 and B-1 quadrangles and part of the C-1 Quadrangle, Alaska Series_Information: Series_Name: Miscellaneous Investigations Series Map Issue_Identification: I 1930 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 2 sheets, scale 1:63,360 Online_Linkage: http://dggs.alaska.gov/pubs/id/12875 Source_Scale_Denominator: 63360 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1990 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Curtis, S.M. and others, 1990 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Dover, J.H. Originator: Miyaoka, R.T. Publication_Date: 1988 Title: Reinterpreted geologic map and fossil data, Charley River Quadrangle, east-central Alaska Series_Information: Series_Name: Miscellaneous Field Studies Map Issue_Identification: MF 2004 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 2 sheets, scale 1:250,000 Online_Linkage: http://dggs.alaska.gov/pubs/id/13097 Source_Scale_Denominator: 250000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1988 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Dover, J.H. and Miyaoka, R.T., 1988 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Ellersieck, Inyo Originator: Curtis, S.M. Originator: Mayfield, C.F. Originator: Tailleur, I.L. Publication_Date: 1984 Title: Reconnaissance geologic map of south-central Misheguk Mountain Quadrangle, Alaska Series_Information: Series_Name: Miscellaneous Investigations Series Map Issue_Identification: I 1504 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 2 sheets, scale 1:63,360 Online_Linkage: http://dggs.alaska.gov/pubs/id/12881 Source_Scale_Denominator: 63360 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1984 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Ellersieck, Inyo and others, 1984 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Ellersieck, Inyo Originator: Curtis, S.M. Originator: Mayfield, C.F. Originator: Tailleur, I.L. Publication_Date: 1990 Title: Reconnaissance geologic map of the De Long Mountains A-2 and B-2 quadrangles and part of the C-2 Quadrangle, Alaska Series_Information: Series_Name: Miscellaneous Investigations Series Map Issue_Identification: I 1931 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 2 sheets, scale 1:63,360 Online_Linkage: http://dggs.alaska.gov/pubs/id/12876 Source_Scale_Denominator: 63360 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1990 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Ellersieck, Inyo and others, 1990 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Foster, H.L. Publication_Date: 1970 Title: Reconnaissance geologic map of the Tanacross Quadrangle, Alaska Series_Information: Series_Name: Miscellaneous Geologic Investigations Map Issue_Identification: I 593 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet, scale 1:250,000 Online_Linkage: http://dggs.alaska.gov/pubs/id/12871 Source_Scale_Denominator: 250000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1970 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Foster, H.L., 1970 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Foster, H.L. Publication_Date: 1976 Title: Geologic map of the Eagle Quadrangle, Alaska Series_Information: Series_Name: Miscellaneous Investigations Series Map Issue_Identification: I 922 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet, scale 1:250,000 Online_Linkage: http://dggs.alaska.gov/pubs/id/12850 Source_Scale_Denominator: 250000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1976 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Foster, H.L., 1976 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Harris, E.E. Originator: Mull, C.G. Originator: Reifenstuhl, R.R. Originator: Montayne, Simone Publication_Date: 2002 Title: Geologic map of the Dalton Highway (Atigun Gorge to Slope Mountain) area, southern Arctic Foothills, Alaska Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2002-2 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 1 sheet, scale 1:63,360 Online_Linkage: http://dx.doi.org/10.14509/2867 Source_Scale_Denominator: 63360 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2002 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Harris, E.E. and others, 2002 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Imm, T.A. Originator: Dillon, J.T. Originator: Bakke, A.A. Publication_Date: 1993 Title: Generalized geologic map of the Arctic National Wildlife Refuge, northeastern Brooks Range, Alaska Series_Information: Series_Name: Special Report Issue_Identification: SR 42 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 1 sheet, scale 1:500,000 Online_Linkage: http://dx.doi.org/10.14509/2641 Source_Scale_Denominator: 500000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1993 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Imm, T.A. and others, 1993 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Kelley, J.S. Publication_Date: 1990 Title: Generalized geologic map of the Chandler Lake Quadrangle, north-central Alaska Series_Information: Series_Name: Miscellaneous Field Studies Map Issue_Identification: MF 2144-A Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 19 p., 1 sheet, scale 1:250,000 Online_Linkage: http://dggs.alaska.gov/pubs/id/13113 Source_Scale_Denominator: 250000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1990 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Kelley, J.S., 1990 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Mayfield, C.F. Originator: Curtis, S.M. Originator: Ellersieck, Inyo Originator: Tailleur, I.L. Publication_Date: 1984 Title: Reconnaissance geologic map of southeastern Misheguk Mountain Quadrangle, Alaska Series_Information: Series_Name: Miscellaneous Investigations Series Map Issue_Identification: I 1503 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 2 sheets, scale 1:63,360 Online_Linkage: http://dggs.alaska.gov/pubs/id/12883 Source_Scale_Denominator: 63360 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1984 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Mayfield, C.F. and others, 1984 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Mayfield, C.F. Originator: Ellersieck, Inyo Originator: Tailleur, I.L. Publication_Date: 1987 Title: Reconnaissance geologic map of the Noatak C5, D5, D6 and D7 quadrangles, Alaska Series_Information: Series_Name: Miscellaneous Investigations Series Map Issue_Identification: I 1814 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet, scale 1:63,360 Online_Linkage: http://dggs.alaska.gov/pubs/id/12879 Source_Scale_Denominator: 63360 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1987 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Mayfield, C.F. and others, 1987 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Mayfield, C.F. Originator: Tailleur, I.L. Originator: Kirschner, C.E. Publication_Date: 1988 Title: Bedrock geologic map of the National Petroleum Reserve in Alaska Series_Information: Series_Name: Professional Paper Issue_Identification: P 1399 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: p. 187-190, scale 1:500,000 Online_Linkage: http://dggs.alaska.gov/pubs/id/4154 Source_Scale_Denominator: 500000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1988 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Mayfield, C.F. and others, 1988, p. 187-190 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Mayfield, C.F. Originator: Curtis, S.M. Originator: Ellersieck, Inyo Originator: Tailleur, I.L. Publication_Date: 1990 Title: Reconnaissance geologic map of the De Long Mountains A-3 and B-3 quadrangles and parts of the A-4 and B-4 quadrangles, Alaska Series_Information: Series_Name: Miscellaneous Investigations Series Map Issue_Identification: I 1929 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 2 sheets, scale 1:63,360 Online_Linkage: http://dggs.alaska.gov/pubs/id/12874 Source_Scale_Denominator: 63360 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1990 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Mayfield, C.F. and others, 1990 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Mull, C.G. Originator: Adams, K.E. Publication_Date: 1989 Title: Bedrock geology of the eastern Koyukuk Basin, central Brooks Range, and east-central Arctic Slope along the Dalton Highway, Yukon River to Prudhoe Bay, Alaska, Volume 2 Series_Information: Series_Name: Guidebook Issue_Identification: GB 7 vol. 2 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 167 p., 1 sheet, scale 1:2,851,200 Online_Linkage: http://dx.doi.org/10.14509/2875 Source_Scale_Denominator: 2851200 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1989 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Mull, C.G. and Adams, K.E., 1989 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Mull, C.G. Originator: Moore, T.E. Originator: Harris, E.E. Originator: Tailleur, I.L. Publication_Date: 1994 Title: Geologic map of the Killik River Quadrangle, Brooks Range, Alaska Series_Information: Series_Name: Open-File Report Issue_Identification: OF 94-679 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet, scale 1:125,000 Online_Linkage: http://dggs.alaska.gov/pubs/id/12177 Source_Scale_Denominator: 125000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1994 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Mull, C.G. and others, 1994 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Reifenstuhl, R.R. Originator: Mull, C.G. Originator: Harris, E.E. Originator: LePain, D.L. Originator: Pinney, D.S. Originator: Wallace, W.K. Publication_Date: 2000 Title: Geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska Series_Information: Series_Name: Report of Investigation Issue_Identification: RI 2000-1A Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 15 p., 1 sheet, scale 1:63,360 Online_Linkage: http://dx.doi.org/10.14509/2675 Source_Scale_Denominator: 63360 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2000 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Reifenstuhl, R.R. and others, 2000 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Carter, L.D. Originator: Galloway, J.P. Publication_Date: 2005 Title: Engineering - geologic maps of northern Alaska, Harrison Bay Quadrangle Series_Information: Series_Name: Open-File Report Issue_Identification: OF 2005-1194 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 32 p., 2 sheets, scale 1:250,000 Online_Linkage: http://dggs.alaska.gov/pubs/id/19962 Source_Scale_Denominator: 250000 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2005 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Carter, L.D. and Galloway, J.P., 2005 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Mull, C.G. Originator: Houseknecht, D.W. Originator: Pessel, G.H. Originator: Garrity, C.P. Publication_Date: 2004 Title: Geologic map of the Umiat Quadrangle, Alaska Series_Information: Series_Name: Scientific Investigations Map Issue_Identification: SIM 2817-A Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet, scale 1:250,000 Online_Linkage: http://dggs.alaska.gov/pubs/id/13144 Source_Scale_Denominator: 250000 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2004 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Mull, C.G. and others, 2004 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Mull, C.G. Originator: Houseknecht, D.W. Originator: Pessel, G.H. Originator: Garrity, C.P. Publication_Date: 2005 Title: Geologic map of the Ikpikpuk River Quadrangle, Alaska Series_Information: Series_Name: Scientific Investigations Map Issue_Identification: SIM 2817-B Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet, scale 1:250,000 Online_Linkage: http://dggs.alaska.gov/pubs/id/24324 Source_Scale_Denominator: 250000 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2005 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Mull, C.G. and others, 2005 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Mull, C.G. Originator: Houseknecht, D.W. Originator: Pessel, G.H. Originator: Garrity, C.P. Publication_Date: 2006 Title: Geologic map of the Lookout Ridge Quadrangle, Alaska Series_Information: Series_Name: Scientific Investigations Map Issue_Identification: SIM 2817-C Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet, scale 1:250,000 Online_Linkage: http://dggs.alaska.gov/pubs/id/23523 Source_Scale_Denominator: 250000 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2006 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Mull, C.G. and others, 2006 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Mull, C.G. Originator: Houseknecht, D.W. Originator: Pessel, G.H. Originator: Garrity, C.P. Publication_Date: 2006 Title: Geologic map of the Utukok River Quadrangle, Alaska Series_Information: Series_Name: Scientific Investigations Map Issue_Identification: SIM 2817-D Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet, scale 1:250,000 Online_Linkage: http://dggs.alaska.gov/pubs/id/23524 Source_Scale_Denominator: 250000 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2006 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Mull, C.G. and others, 2006 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Mull, C.G. Originator: Houseknecht, D.W. Originator: Pessel, G.H. Originator: Garrity, C.P. Publication_Date: 2008 Title: Geologic map of the Point Lay Quadrangle, Alaska Series_Information: Series_Name: Scientific Investigations Map Issue_Identification: SIM 2817-E Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet, scale 1:250,000 Online_Linkage: http://dggs.alaska.gov/pubs/id/23525 Source_Scale_Denominator: 250000 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2008 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Mull, C.G. and others, 2008 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Patton, W.W., Jr. Originator: Wilson, F.H. Originator: Labay, K.A. Originator: Shew, Nora Publication_Date: 2009 Title: Geologic map of the Yukon-Koyukuk Basin, Alaska Series_Information: Series_Name: Scientific Investigations Map Issue_Identification: SIM 2909 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 2 sheets, scale 1:500,000 Online_Linkage: http://dggs.alaska.gov/pubs/id/23527 Source_Scale_Denominator: 500000 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2009 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Patton, W.W., Jr. and others, 2009 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Patton, W.W., Jr. Originator: Wilson, F.H. Originator: Taylor, T.A. Publication_Date: 2011 Title: Geologic map of Saint Lawrence Island, Alaska Series_Information: Series_Name: Scientific Investigations Map Issue_Identification: SIM 3146 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet, scale 1:250,000 Online_Linkage: http://dggs.alaska.gov/pubs/id/23535 Source_Scale_Denominator: 250000 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2011 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Patton, W.W., Jr. and others, 2011 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Till, A.B. Originator: Dumoulin, J.A. Originator: Harris, A.G. Originator: Moore, T.E. Originator: Bleick, Heather Originator: Siwiec, Benjamin Publication_Date: 2008 Title: Preliminary integrated geologic map databases for the United States: digital data for the geology of the southern Brooks Range, Alaska Series_Information: Series_Name: Open-File Report Issue_Identification: OF 2008-1149 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Online_Linkage: http://dggs.alaska.gov/pubs/id/23677 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2008 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Till, A.B. and others, 2008 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Till, A.B. Originator: Dumoulin, J.A. Originator: Werdon, M.B. Originator: Bleick, H.A. Publication_Date: 2010 Title: Preliminary bedrock geologic map of the Seward Peninsula, Alaska, and accompanying conodont data Series_Information: Series_Name: Open-File Report Issue_Identification: OF 2009-1254 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 75 p., 2 sheets Online_Linkage: http://dggs.alaska.gov/pubs/id/23685 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2010 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Till, A.B. and others, 2010 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Wilson, F.H. Originator: Dover, J.H. Originator: Bradley, D.C. Originator: Weber, F.R. Originator: Bundtzen, T.K. Originator: Haeussler, P.J. Publication_Date: 1998 Title: Geologic map of Central (Interior) Alaska Series_Information: Series_Name: Open-File Report Issue_Identification: OF 98-133-A Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 62 p., 3 sheets Online_Linkage: http://dggs.alaska.gov/pubs/id/14822 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1998 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wilson, F.H. and others, 1998 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Wilson, F.H. Originator: Detterman, R.L. Originator: DuBois, G.D. Publication_Date: 1999 Title: Digital data for the geologic framework of the Alaska Peninsula, Southwest Alaska, and the Alaska Peninsula terrane Series_Information: Series_Name: Open-File Report Issue_Identification: OF 99-317 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 41 p., 1 sheet Online_Linkage: http://dggs.alaska.gov/pubs/id/14779 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1999 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wilson, F.H. and others, 1999 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Wilson, F.H. Originator: Labay, K.A. Originator: Mohadjer, Solmaz Originator: Shew, Nora Publication_Date: 2005 Title: Preliminary integrated geologic map databases for the United States: digital data for the reconnaissance geologic map of the Kodiak Islands, Alaska Series_Information: Series_Name: Open-File Report Issue_Identification: OF 2005-1340 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 p Online_Linkage: http://dggs.alaska.gov/pubs/id/23630 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2005 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wilson, F.H. and others, 2005 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Wilson, F.H. Originator: Mohadjer, Solmaz Originator: Labay, K.A. Originator: Shew, Nora Originator: Blodgett, R.B. Originator: Blome, C.D. Originator: Preller, C.C. Originator: Klimasauskas, E.P. Originator: Gamble, B.M. Originator: Coonrad, W.L. Publication_Date: 2006 Title: Preliminary integrated geologic map databases for the United States: digital data for the reconnaissance bedrock geologic map for the northern Alaska Peninsula area, southwest Alaska Series_Information: Series_Name: Open-File Report Issue_Identification: OF 2006-1303 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 p Online_Linkage: http://dggs.alaska.gov/pubs/id/23657 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2006 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wilson, F.H. and others, 2006 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Wilson, F.H. Originator: Mohadjer, Solmaz Originator: Labay, K.A. Originator: Shew, Nora Originator: Grey, D.M. Publication_Date: 2006 Title: Preliminary integrated geologic map databases for the United States: digital data for the reconnaissance geologic map of the western Aleutian Islands, Alaska Series_Information: Series_Name: Open-File Report Issue_Identification: OF 2006-1302 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 p Online_Linkage: http://dggs.alaska.gov/pubs/id/23656 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2006 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wilson, F.H. and others, 2006 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Wilson, F.H. Originator: Hults, C.P. Originator: Mohadjer, Solmaz Originator: Coonrad, W.L. Originator: Shew, Nora Originator: Labay, K.A. Publication_Date: 2008 Title: Preliminary integrated geologic map databases for the United States: digital data for the reconnaissance geologic map for the Kuskokwim Bay region of southwest Alaska Series_Information: Series_Name: Open-File Report Issue_Identification: OF 2008-1001 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Online_Linkage: http://dggs.alaska.gov/pubs/id/23673 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2008 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wilson, F.H. and others, 2008 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Wilson, F.H. Originator: Hults, C.P. Originator: Labay, K.A. Originator: Shew, Nora Publication_Date: 2008 Title: Preliminary integrated geologic map databases for the United States: digital data for the reconnaissance geologic map for Prince William Sound and the Kenai Peninsula, Alaska Series_Information: Series_Name: Open-File Report Issue_Identification: OF 2008-1002 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Online_Linkage: http://dggs.alaska.gov/pubs/id/23674 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2008 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wilson, F.H. and others, 2008 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Wilson, F.H. Originator: Hults, C.P. Originator: Schmoll, H.R. Originator: Haeussler, P.J. Originator: Schmidt, J.M. Originator: Yehle, L.A. Originator: Labay, K.A. Originator: Shew, N.B. Publication_Date: 2009 Title: Preliminary integrated geologic map databases for the United States: preliminary geologic map of the Cook Inlet region, Alaska Series_Information: Series_Name: Open-File Report Issue_Identification: OF 2009-1108 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Online_Linkage: http://dggs.alaska.gov/pubs/id/26723 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2009 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wilson, F.H. and others, 2009 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Shew, Nora Originator: Peterson, C.S. Originator: Grabman, Nathaniel Originator: Mohadjer, Solmaz Originator: Grunwald, Daniel Originator: Wilson, F.H. Originator: Hults, C.K. Publication_Date: 2006 Title: Preliminary integrated geologic map databases for the United States: digital data for the geology of southeast Alaska Series_Information: Series_Name: Open-File Report Issue_Identification: OF 2006-1290 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 p Online_Linkage: http://dggs.alaska.gov/pubs/id/23654 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2006 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Shew, Nora and others, 2006 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Till, A.B. Originator: Dumoulin, J.A. Originator: Phillips, J.D. Originator: Stanley, R.G. Originator: Crews, Jesse Publication_Date: 2006 Title: Preliminary integrated geologic map databases for the United States: digital data for the generalized bedrock geologic map, Yukon Flats region, east-central Alaska Series_Information: Series_Name: Open-File Report Issue_Identification: OF 2006-1304 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 p Online_Linkage: http://dggs.alaska.gov/pubs/id/23658 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2006 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Till, A.B. and others, 2006 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Richter, D.H. Originator: Preller, C.C. Originator: Labay, K.A. Originator: Shew, N.B. Publication_Date: 2005 Title: Preliminary integrated geologic map databases for the United States: digital data for the geology of Wrangell-Saint Elias National Park and Preserve, Alaska Series_Information: Series_Name: Open-File Report Issue_Identification: OF 2005-1342 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 p Online_Linkage: http://dggs.alaska.gov/pubs/id/23632 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2005 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Richter, D.H. and others, 2005 Source_Contribution: geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Patton, W.W., Jr. Originator: Wilson, F.H. Originator: Labay, K.A. Publication_Date: 2006 Title: Preliminary integrated geologic map databases for the United States: digital data for the reconnaissance geologic map of the lower Yukon River region, Alaska Series_Information: Series_Name: Open-File Report Issue_Identification: OF 2006-1292 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 p Online_Linkage: http://dggs.alaska.gov/pubs/id/23655 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2006 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Patton, W.W., Jr. and others, 2006 Source_Contribution: geologic map compilation Process_Step: Process_Description: Compilation of known occurrences of asbestos - We used the Alaska Resource Data File (http://ardf.wr.usgs.gov/welcome.html) and USGS Mineral Resource Data System, Alaska (http://mrdata.usgs.gov/mineral-resources/mrds-ak.html) to compile a list of known occurrences of asbestos in Alaskan bedrock. Both databases were searched for references to asbestos; search results were combined and duplications deleted. Process_Date: 2014 Process_Step: Process_Description: Geologic map compilation - We identified and assimilated applicable published geologic maps to generate a statewide database of bedrock map units. In areas of map overlap, we prioritized digital maps with the most current and descriptive bedrock lithologic information, generally as close to 1:250,000 scale as possible, and the extent of less suitable map was clipped accordingly. We interpreted the amount of a given lithology composing each NOA-favorable map unit based on map unit descriptions provided by the originating maps. Abundance of NOA-favorable lithology was assigned according to estimated percentage of total rock volume: trace (less than 1 percent), minor (1-10 percent), moderate (11-50 percent), and major (greater than 50 percent). Using these percentages, each geologic unit was classified according to it's interpreted potential for hosting asbestos minerals. The percentages of NOA-favorable rocks in each unit were not always reported, which resulted in necessarily subjective interpretations for this project. Correlative map units on adjacent maps may be rated differently depending on how NOA-favorable lithologies are described in the source publications. Source_Used_Citation_Abbreviation: Beikman, H.M., 1975 Source_Used_Citation_Abbreviation: Beikman, H.M., 1980 Source_Used_Citation_Abbreviation: Brosge, W.P. and others, 1979 Source_Used_Citation_Abbreviation: Curtis, S.M. and others, 1984 Source_Used_Citation_Abbreviation: Curtis, S.M. and others, 1990 Source_Used_Citation_Abbreviation: Dover, J.H. and Miyaoka, R.T., 1988 Source_Used_Citation_Abbreviation: Ellersieck, Inyo and others, 1984 Source_Used_Citation_Abbreviation: Ellersieck, Inyo and others, 1990 Source_Used_Citation_Abbreviation: Foster, H.L., 1970 Source_Used_Citation_Abbreviation: Foster, H.L., 1976 Source_Used_Citation_Abbreviation: Harris, E.E. and others, 2002 Source_Used_Citation_Abbreviation: Imm, T.A. and others, 1993 Source_Used_Citation_Abbreviation: Kelley, J.S., 1990 Source_Used_Citation_Abbreviation: Mayfield, C.F. and others, 1984 Source_Used_Citation_Abbreviation: Mayfield, C.F. and others, 1987 Source_Used_Citation_Abbreviation: Mayfield, C.F. and others, 1988, p. 187-190 Source_Used_Citation_Abbreviation: Mayfield, C.F. and others, 1990 Source_Used_Citation_Abbreviation: Mull, C.G. and Adams, K.E., 1989 Source_Used_Citation_Abbreviation: Mull, C.G. and others, 1994 Source_Used_Citation_Abbreviation: Reifenstuhl, R.R. and others, 2000 Source_Used_Citation_Abbreviation: Carter, L.D. and Galloway, J.P., 2005 Source_Used_Citation_Abbreviation: Mull, C.G. and others, 2004 Source_Used_Citation_Abbreviation: Mull, C.G. and others, 2005 Source_Used_Citation_Abbreviation: Mull, C.G. and others, 2006 Source_Used_Citation_Abbreviation: Mull, C.G. and others, 2006 Source_Used_Citation_Abbreviation: Mull, C.G. and others, 2008 Source_Used_Citation_Abbreviation: Patton, W.W., Jr. and others, 2009 Source_Used_Citation_Abbreviation: Patton, W.W., Jr. and others, 2011 Source_Used_Citation_Abbreviation: Till, A.B. and others, 2008 Source_Used_Citation_Abbreviation: Till, A.B. and others, 2010 Source_Used_Citation_Abbreviation: Wilson, F.H. and others, 1998 Source_Used_Citation_Abbreviation: Wilson, F.H. and others, 1999 Source_Used_Citation_Abbreviation: Wilson, F.H. and others, 2005 Source_Used_Citation_Abbreviation: Wilson, F.H. and others, 2006 Source_Used_Citation_Abbreviation: Wilson, F.H. and others, 2006 Source_Used_Citation_Abbreviation: Wilson, F.H. and others, 2008 Source_Used_Citation_Abbreviation: Wilson, F.H. and others, 2008 Source_Used_Citation_Abbreviation: Wilson, F.H. and others, 2009 Source_Used_Citation_Abbreviation: Shew, Nora and others, 2006 Source_Used_Citation_Abbreviation: Till, A.B. and others, 2006 Source_Used_Citation_Abbreviation: Richter, D.H. and others, 2005 Source_Used_Citation_Abbreviation: Patton, W.W., Jr. and others, 2006 Process_Date: 2015 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: vector Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Alaska Albers Albers_Conical_Equal_Area: Standard_Parallel: 55.0 Standard_Parallel: 65.0 Longitude_of_Central_Meridian: -154.0 Latitude_of_Projection_Origin: 50.0 False_Easting: 0 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.0000000030536018158500163 Ordinate_Resolution: 0.0000000030536018158500163 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: GRS 80 Semi-major_Axis: 6378137 Denominator_of_Flattening_Ratio: 298.257222101 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: mp157-geospatial-data Entity_Type_Label: mp157-ARDF_MRDS Entity_Type_Definition: Table of known occurrences of naturally occurring asbestos (NOA) in Alaska. Entity_Type_Definition_Source: Occurrences were derived from the Alaska Resource Data File (http://ardf.wr.usgs.gov/welcome.html) and Mineral Resource Data System: Alaska (http://mrdata.usgs.gov/mineral-resources/mrds-ak.html). The Alaska Resource Data File (ARDF) data were compiled by the U.S. Geological Survey (USGS) "using published literature, unpublished reports and data from various sources including the United States Bureau of Mines, USGS, and industry" (ARDF website). The Mineral Resource Data System (MRDS) "describes metallic and nonmetallic mineral resources throughout the world. Included are deposit name, location, commodity, deposit description, geologic characteristics, production, reserves, resources, and references." (MRDS website). Attribute: Attribute_Label: ARDF_No Attribute_Definition: USGS Alaska Resource Data File (ARDF) record identifier Attribute_Definition_Source: USGS Alaska Resource Data File (ARDF) or USGS Mineral Resource Data System: Alaska Attribute_Domain_Values: Unrepresentable_Domain: http://ardf.wr.usgs.gov/ Attribute: Attribute_Label: MRDS_depo Attribute_Definition: USGS Mineral Resource Data System: Alaska record identifier Attribute_Definition_Source: USGS Alaska Resource Data File (ARDF) or USGS Mineral Resource Data System: Alaska Attribute_Domain_Values: Unrepresentable_Domain: http://mrdata.usgs.gov/mineral-resources/mrds-ak.html Attribute: Attribute_Label: Site_Name Attribute_Definition: Name of locality from ARDF or MRDS Attribute_Definition_Source: USGS Alaska Resource Data File (ARDF) or USGS Mineral Resource Data System: Alaska Attribute_Domain_Values: Unrepresentable_Domain: Site names were replicated from originating datasets Attribute: Attribute_Label: Quad_250 Attribute_Definition: 1:250,000-scale USGS quadrangle name Attribute_Definition_Source: USGS Alaska Resource Data File (ARDF) or USGS Mineral Resource Data System: Alaska Attribute_Domain_Values: Unrepresentable_Domain: Quadrangle names follow USGS topographic map conventions Attribute: Attribute_Label: Quad_63 Attribute_Definition: 1:63,360-scale USGS quadrangle identifier Attribute_Definition_Source: USGS Alaska Resource Data File (ARDF) or USGS Mineral Resource Data System: Alaska Attribute_Domain_Values: Unrepresentable_Domain: Quadrangle identifiers follow USGS topographic map conventions Attribute: Attribute_Label: Latitude Attribute_Definition: Latitude of asbestos locality Attribute_Definition_Source: USGS Alaska Resource Data File (ARDF) or USGS Mineral Resource Data System: Alaska Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 55.106 Range_Domain_Maximum: 68.31894 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: Longitude Attribute_Definition: Longitude of asbestos locality Attribute_Definition_Source: USGS Alaska Resource Data File (ARDF) or USGS Mineral Resource Data System: Alaska Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -162.07126 Range_Domain_Maximum: -130.18506 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: Asbestos_ Attribute_Definition: Type of asbestos development (prospect, occurrence, mine) Attribute_Definition_Source: USGS Alaska Resource Data File (ARDF) or USGS Mineral Resource Data System: Alaska Attribute_Domain_Values: Unrepresentable_Domain: Values were replicated from originating datasets Attribute: Attribute_Label: Asbestos_1 Attribute_Definition: Minerals found at the locality that can have an asbestiform morphology Attribute_Definition_Source: USGS Alaska Resource Data File (ARDF) or USGS Mineral Resource Data System: Alaska Attribute_Domain_Values: Unrepresentable_Domain: values were replicated from originating datasets Attribute: Attribute_Label: Asbestos_2 Attribute_Definition: Minerals found at the locality that are commonly associated with asbestiform minerals but do not themselves have an asbestiform morphology Attribute_Definition_Source: USGS Alaska Resource Data File (ARDF) or USGS Mineral Resource Data System: Alaska Attribute_Domain_Values: Unrepresentable_Domain: Values were replicated from originating datasets Attribute: Attribute_Label: Other_mine Attribute_Definition: Other commodities noted at the reported locality Attribute_Definition_Source: USGS Alaska Resource Data File (ARDF) or USGS Mineral Resource Data System: Alaska Attribute_Domain_Values: Unrepresentable_Domain: Values were replicated from originating datasets Attribute: Attribute_Label: Host_rock_ Attribute_Definition: Description of the host rock at the reported locality Attribute_Definition_Source: USGS Alaska Resource Data File (ARDF) or USGS Mineral Resource Data System: Alaska Attribute_Domain_Values: Unrepresentable_Domain: Values were replicated from originating datasets Attribute: Attribute_Label: ARDF_URL_o Attribute_Definition: link to the ARDF URL or MRDS URL for the reported locality Attribute_Definition_Source: USGS Alaska Resource Data File (ARDF) or USGS Mineral Resource Data System: Alaska Attribute_Domain_Values: Unrepresentable_Domain: Values were replicated from originating datasets Detailed_Description: Entity_Type: Entity_Type_Label: mp157-NOA_polygons Entity_Type_Definition: Digital geologic maps that portray the extent of various bedrock units that have been mapped throughout Alaska and a ranking of their interpreted relative potential for hosting asbestos minerals Entity_Type_Definition_Source: Various maps published by the U.S. Geological Survey (USGS) and the Alaska Division of Geological & Geophysical Surveys. Attribute: Attribute_Label: NOA_POTENTIAL Attribute_Definition: Identifies interpreted potential of a bedrock unit to contain naturally occurring asbestos as defined in MP157 (accompanying manuscript), Appendix 1 or indicates the type of non-bedrock polygon. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: Possible values are: High to known, Medium, Zero to low, Ice, Surficial deposit, Unknown, and Water Attribute: Attribute_Label: NOA_FAV_LI Attribute_Definition: NOA-favorable rock type (lithology) as reported in the originating map. Polygons representing unmapped areas within the originating maps are flagged as "not mapped." NULL values correlate with waterbody polygons Attribute_Definition_Source: See accompanying manuscript for complete reference list. Attribute_Domain_Values: Unrepresentable_Domain: Values were replicated from originating datasets but may have been lightly edited for consistency or clarity Attribute: Attribute_Label: AMOUNT_NOA Attribute_Definition: Interpreted amount of a given lithology composing each NOA-favorable map unit from reference. Attribute_Definition_Source: See accompanying manuscript for complete reference list. Attribute_Domain_Values: Unrepresentable_Domain: Abundance of NOA-favorable lithology is assigned according to estimated percentage of total rock volume: trace (less than 1 percent), minor (1–10 percent), moderate (11–50 percent), and major (greater than 50 percent). Attribute: Attribute_Label: UNIT_ABBREV Attribute_Definition: URL to USGS NSA code description, where provided in reference. Attribute_Definition_Source: See accompanying manuscript for complete reference list. Attribute_Domain_Values: Unrepresentable_Domain: Values were replicated from originating datasets Attribute: Attribute_Label: REFERENCE Attribute_Definition: Reference of source data. Attribute_Definition_Source: See accompanying manuscript for complete reference list. Attribute_Domain_Values: Unrepresentable_Domain: Example: Mayfield and others (1988) Attribute: Attribute_Label: LITHOLOGY Attribute_Definition: Abbreviated description of unit Attribute_Definition_Source: originating reference Attribute_Domain_Values: Unrepresentable_Domain: Values were replicated from originating datasets and, if needed, lightly edited for clarity or consistency. 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