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
Solie, D.N., and Athey, J.E., 2015, Preliminary evaluation of bedrock potential for naturally occurring asbestos in Alaska: Miscellaneous Publication MP 157, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.Online Links:
This is a vector data set.
The map projection used is Alaska Albers.
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 0.0000000030536018158500163
Ordinates (y-coordinates) are specified to the nearest 0.0000000030536018158500163
Planar coordinates are specified in meters
The horizontal datum used is North American Datum of 1983.
The ellipsoid used is GRS 80.
The semi-major axis of the ellipsoid used is 6378137.
The flattening of the ellipsoid used is 1/298.257222101.
<http://mrdata.usgs.gov/mineral-resources/mrds-ak.html>
Site names were replicated from originating datasets
Quadrangle names follow USGS topographic map conventions
Quadrangle identifiers follow USGS topographic map conventions
| Range of values | |
|---|---|
| Minimum: | 55.106 |
| Maximum: | 68.31894 |
| Units: | decimal degrees |
| Range of values | |
|---|---|
| Minimum: | -162.07126 |
| Maximum: | -130.18506 |
| Units: | decimal degrees |
Values were replicated from originating datasets
values were replicated from originating datasets
Values were replicated from originating datasets
Values were replicated from originating datasets
Values were replicated from originating datasets
Values were replicated from originating datasets
Possible values are: High to known, Medium, Zero to low, Ice, Surficial deposit, Unknown, and Water
Values were replicated from originating datasets but may have been lightly edited for consistency or clarity
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).
Values were replicated from originating datasets
Example: Mayfield and others (1988)
Values were replicated from originating datasets and, if needed, lightly edited for clarity or consistency.
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.
(907)451-5020 (voice)
dggsgis@alaska.gov
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.
Beikman, H.M., 1975, Preliminary geologic map of southeastern Alaska: Miscellaneous Field Studies Map MF 673, U.S. Geological Survey, United States.Online Links:
Beikman, H.M., 1980, Geologic map of Alaska: Unnumbered Report Beikman, H.M., 1980, U.S. Geological Survey, United States.Online Links:
Brosge, W.P., Reiser, H.N., Dutro, J.T., Jr., and Detterman, R.L., 1979, Bedrock geologic map of the Philip Smith Mountains Quadrangle, Alaska: Miscellaneous Field Studies Map MF 879-B, U.S. Geological Survey, United States.Online Links:
Curtis, S.M., Ellersieck, Inyo, Mayfield, C.F., and Tailleur, I.L., 1984, Reconnaissance geologic map of the southwestern Misheguk Mountain Quadrangle, Alaska: Miscellaneous Investigations Series Map I 1502, U.S. Geological Survey, United States.Online Links:
Curtis, S.M., Ellersieck, Inyo, Mayfield, C.F., and Tailleur, I.L., 1990, Reconnaissance geologic map of the De Long Mountains A-1 and B-1 quadrangles and part of the C-1 Quadrangle, Alaska: Miscellaneous Investigations Series Map I 1930, U.S. Geological Survey, United States.Online Links:
Dover, J.H., and Miyaoka, R.T., 1988, Reinterpreted geologic map and fossil data, Charley River Quadrangle, east-central Alaska: Miscellaneous Field Studies Map MF 2004, U.S. Geological Survey, United States.Online Links:
Ellersieck, Inyo, Curtis, S.M., Mayfield, C.F., and Tailleur, I.L., 1984, Reconnaissance geologic map of south-central Misheguk Mountain Quadrangle, Alaska: Miscellaneous Investigations Series Map I 1504, U.S. Geological Survey, United States.Online Links:
Ellersieck, Inyo, Curtis, S.M., Mayfield, C.F., and Tailleur, I.L., 1990, Reconnaissance geologic map of the De Long Mountains A-2 and B-2 quadrangles and part of the C-2 Quadrangle, Alaska: Miscellaneous Investigations Series Map I 1931, U.S. Geological Survey, United States.Online Links:
Foster, H.L., 1970, Reconnaissance geologic map of the Tanacross Quadrangle, Alaska: Miscellaneous Geologic Investigations Map I 593, U.S. Geological Survey, United States.Online Links:
Foster, H.L., 1976, Geologic map of the Eagle Quadrangle, Alaska: Miscellaneous Investigations Series Map I 922, U.S. Geological Survey, United States.Online Links:
Harris, E.E., Mull, C.G., Reifenstuhl, R.R., and Montayne, Simone, 2002, Geologic map of the Dalton Highway (Atigun Gorge to Slope Mountain) area, southern Arctic Foothills, Alaska: Preliminary Interpretive Report PIR 2002-2, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.Online Links:
Imm, T.A., Dillon, J.T., and Bakke, A.A., 1993, Generalized geologic map of the Arctic National Wildlife Refuge, northeastern Brooks Range, Alaska: Special Report SR 42, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.Online Links:
Kelley, J.S., 1990, Generalized geologic map of the Chandler Lake Quadrangle, north-central Alaska: Miscellaneous Field Studies Map MF 2144-A, U.S. Geological Survey, United States.Online Links:
Mayfield, C.F., Curtis, S.M., Ellersieck, Inyo, and Tailleur, I.L., 1984, Reconnaissance geologic map of southeastern Misheguk Mountain Quadrangle, Alaska: Miscellaneous Investigations Series Map I 1503, U.S. Geological Survey, United States.Online Links:
Mayfield, C.F., Ellersieck, Inyo, and Tailleur, I.L., 1987, Reconnaissance geologic map of the Noatak C5, D5, D6 and D7 quadrangles, Alaska: Miscellaneous Investigations Series Map I 1814, U.S. Geological Survey, United States.Online Links:
Mayfield, C.F., Tailleur, I.L., and Kirschner, C.E., 1988, Bedrock geologic map of the National Petroleum Reserve in Alaska: Professional Paper P 1399, U.S. Geological Survey, United States.Online Links:
Mayfield, C.F., Curtis, S.M., Ellersieck, Inyo, and Tailleur, I.L., 1990, 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: Miscellaneous Investigations Series Map I 1929, U.S. Geological Survey, United States.Online Links:
Mull, C.G., and Adams, K.E., 1989, 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: Guidebook GB 7 vol. 2, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.Online Links:
Mull, C.G., Moore, T.E., Harris, E.E., and Tailleur, I.L., 1994, Geologic map of the Killik River Quadrangle, Brooks Range, Alaska: Open-File Report OF 94-679, U.S. Geological Survey, United States.Online Links:
Reifenstuhl, R.R., Mull, C.G., Harris, E.E., LePain, D.L., Pinney, D.S., and Wallace, W.K., 2000, Geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska: Report of Investigation RI 2000-1A, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.Online Links:
Carter, L.D., and Galloway, J.P., 2005, Engineering - geologic maps of northern Alaska, Harrison Bay Quadrangle: Open-File Report OF 2005-1194, U.S. Geological Survey, United States.Online Links:
Mull, C.G., Houseknecht, D.W., Pessel, G.H., and Garrity, C.P., 2004, Geologic map of the Umiat Quadrangle, Alaska: Scientific Investigations Map SIM 2817-A, U.S. Geological Survey, United States.Online Links:
Mull, C.G., Houseknecht, D.W., Pessel, G.H., and Garrity, C.P., 2005, Geologic map of the Ikpikpuk River Quadrangle, Alaska: Scientific Investigations Map SIM 2817-B, U.S. Geological Survey, United States.Online Links:
Mull, C.G., Houseknecht, D.W., Pessel, G.H., and Garrity, C.P., 2006, Geologic map of the Lookout Ridge Quadrangle, Alaska: Scientific Investigations Map SIM 2817-C, U.S. Geological Survey, United States.Online Links:
Mull, C.G., Houseknecht, D.W., Pessel, G.H., and Garrity, C.P., 2006, Geologic map of the Utukok River Quadrangle, Alaska: Scientific Investigations Map SIM 2817-D, U.S. Geological Survey, United States.Online Links:
Mull, C.G., Houseknecht, D.W., Pessel, G.H., and Garrity, C.P., 2008, Geologic map of the Point Lay Quadrangle, Alaska: Scientific Investigations Map SIM 2817-E, U.S. Geological Survey, United States.Online Links:
Patton, W.W., Jr., Wilson, F.H., Labay, K.A., and Shew, Nora, 2009, Geologic map of the Yukon-Koyukuk Basin, Alaska: Scientific Investigations Map SIM 2909, U.S. Geological Survey, United States.Online Links:
Patton, W.W., Jr., Wilson, F.H., and Taylor, T.A., 2011, Geologic map of Saint Lawrence Island, Alaska: Scientific Investigations Map SIM 3146, U.S. Geological Survey, United States.Online Links:
Till, A.B., Dumoulin, J.A., Harris, A.G., Moore, T.E., Bleick, Heather, and Siwiec, Benjamin, 2008, Preliminary integrated geologic map databases for the United States: digital data for the geology of the southern Brooks Range, Alaska: Open-File Report OF 2008-1149, U.S. Geological Survey, United States.Online Links:
Till, A.B., Dumoulin, J.A., Werdon, M.B., and Bleick, H.A., 2010, Preliminary bedrock geologic map of the Seward Peninsula, Alaska, and accompanying conodont data: Open-File Report OF 2009-1254, U.S. Geological Survey, United States.Online Links:
Wilson, F.H., Dover, J.H., Bradley, D.C., Weber, F.R., Bundtzen, T.K., and Haeussler, P.J., 1998, Geologic map of Central (Interior) Alaska: Open-File Report OF 98-133-A, U.S. Geological Survey, United States.Online Links:
Wilson, F.H., Detterman, R.L., and DuBois, G.D., 1999, Digital data for the geologic framework of the Alaska Peninsula, Southwest Alaska, and the Alaska Peninsula terrane: Open-File Report OF 99-317, U.S. Geological Survey, United States.Online Links:
Wilson, F.H., Labay, K.A., Mohadjer, Solmaz, and Shew, Nora, 2005, Preliminary integrated geologic map databases for the United States: digital data for the reconnaissance geologic map of the Kodiak Islands, Alaska: Open-File Report OF 2005-1340, U.S. Geological Survey, United States.Online Links:
Wilson, F.H., Mohadjer, Solmaz, Labay, K.A., Shew, Nora, Blodgett, R.B., Blome, C.D., Preller, C.C., Klimasauskas, E.P., Gamble, B.M., and Coonrad, W.L., 2006, 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: Open-File Report OF 2006-1303, U.S. Geological Survey, United States.Online Links:
Wilson, F.H., Mohadjer, Solmaz, Labay, K.A., Shew, Nora, and Grey, D.M., 2006, Preliminary integrated geologic map databases for the United States: digital data for the reconnaissance geologic map of the western Aleutian Islands, Alaska: Open-File Report OF 2006-1302, U.S. Geological Survey, United States.Online Links:
Wilson, F.H., Hults, C.P., Mohadjer, Solmaz, Coonrad, W.L., Shew, Nora, and Labay, K.A., 2008, Preliminary integrated geologic map databases for the United States: digital data for the reconnaissance geologic map for the Kuskokwim Bay region of southwest Alaska: Open-File Report OF 2008-1001, U.S. Geological Survey, United States.Online Links:
Wilson, F.H., Hults, C.P., Labay, K.A., and Shew, Nora, 2008, 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: Open-File Report OF 2008-1002, U.S. Geological Survey, United States.Online Links:
Wilson, F.H., Hults, C.P., Schmoll, H.R., Haeussler, P.J., Schmidt, J.M., Yehle, L.A., Labay, K.A., and Shew, N.B., 2009, Preliminary integrated geologic map databases for the United States: preliminary geologic map of the Cook Inlet region, Alaska: Open-File Report OF 2009-1108, U.S. Geological Survey, United States.Online Links:
Shew, Nora, Peterson, C.S., Grabman, Nathaniel, Mohadjer, Solmaz, Grunwald, Daniel, Wilson, F.H., and Hults, C.K., 2006, Preliminary integrated geologic map databases for the United States: digital data for the geology of southeast Alaska: Open-File Report OF 2006-1290, U.S. Geological Survey, United States.Online Links:
Till, A.B., Dumoulin, J.A., Phillips, J.D., Stanley, R.G., and Crews, Jesse, 2006, Preliminary integrated geologic map databases for the United States: digital data for the generalized bedrock geologic map, Yukon Flats region, east-central Alaska: Open-File Report OF 2006-1304, U.S. Geological Survey, United States.Online Links:
Richter, D.H., Preller, C.C., Labay, K.A., and Shew, N.B., 2005, Preliminary integrated geologic map databases for the United States: digital data for the geology of Wrangell-Saint Elias National Park and Preserve, Alaska: Open-File Report OF 2005-1342, U.S. Geological Survey, United States.Online Links:
Patton, W.W., Jr., Wilson, F.H., and Labay, K.A., 2006, Preliminary integrated geologic map databases for the United States: digital data for the reconnaissance geologic map of the lower Yukon River region, Alaska: Open-File Report OF 2006-1292, U.S. Geological Survey, United States.Online Links:
Data sources used in this process:
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.
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.'
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.
All polygon features were topologically validated using ArcGIS for Desktop.
Are there legal restrictions on access or use of the data?
- 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.
(907)451-5020 (voice)
(907)451-5050 (FAX)
dggspubs@alaska.gov
MP 157
The State of Alaska makes no expressed 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.
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| Data format: | ESRI ArcGIS layer files, geodatabase, .mxd file, and shapefiles |
|---|---|
| Network links: |
<http://dx.doi.org/10.14509/29447> |
(907)451-5020 (voice)