Identification_Information: Citation: Citation_Information: Originator: Kline, J.T. Originator: Pinney, D.S. Publication_Date: 1997 Title: Derivative Map of the Geologic Materials and Hazards in the Eastern Half McGrath Quadrangle, Alaska Geospatial_Data_Presentation_Form: map and vector digital data Series_Information: Series_Name: Report of Investigations Issue_Identification: RI 97-14B Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 1 sheet, scale 1:125,000 Online_Linkage: http://dx.doi.org/10.14509/2550 Description: Abstract: This map illustrates the potential near-surface sources of various geologic materials that may be useful for construction. Field observations indicate that each geologic unit has a definite composition or range of composition wherever that unit is found. Therefore, the presence of materials is interpreted from the distribution of geologic units on the geologic map of this quadrangle. This map is generalized and is not intended to show exact locations of specific materials. The map also addresses some of the principle geologic hazards that may be associated with the deposits based upon their general physical properties and conditions that are characteristic of their depositional environment. Purpose: The purpose of this map is to indicate general areas that deserve consideration for certain materials and to eliminate other general areas from consideration for these materials. Local variations are common, especially near unit boundaries. Supplemental_Information: The layers listed below are present as ArcGIS shape files. Attribute information for the following layers (entities) is included in this metadata file under the "Entity_and_Attribute_Information" section. Each layer is listed and described in detail under its own heading starting "Entity_Type_Label." Basic unit information is also included in the geologic unit code set file "RI1997-14_codeset.pdf." Layers include: >mcgmat_arc materials units (arc) >mcgmat_poly materials units (polygon) >faultzone_arc indicates location of the Denali-Farewell fault system (arc) >faultzone_poly indicates location of the Denali-Farewell fault system (polygon) Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19800701 Ending_Date: 19970630 Currentness_Reference: publication date Status: Progress: complete Maintenance_and_Update_Frequency: none planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -154.551058 East_Bounding_Coordinate: -152.999998 North_Bounding_Coordinate: 63.007954 South_Bounding_Coordinate: 61.991851 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: Alluvial Deposits Theme_Keyword: Colluvial Deposits Theme_Keyword: Eolian Theme_Keyword: Geologic Hazards Theme_Keyword: Geologic Materials Theme_Keyword: Geology Theme_Keyword: Glacial Deposits Place: Place_Keyword_Thesaurus: none Place_Keyword: Alaska, State of Place_Keyword: McGrath Stratum: Stratum_Keyword_Thesaurus: none Stratum_Keyword: Denali-Farewell Fault Stratum_Keyword: Dillinger Terrane Stratum_Keyword: Farewell Terrane Stratum_Keyword: Kahiltna Terrane Stratum_Keyword: McKinley Terrane Stratum_Keyword: Middle Fork Plutonic Complex Stratum_Keyword: Mystic Terrane Stratum_Keyword: Pingston Terrane Stratum_Keyword: Post River Pluton Stratum_Keyword: Veleska Lake Volcanic Complex Stratum_Keyword: Yukon-Tanana Terrane Temporal: Temporal_Keyword_Thesaurus: none Temporal_Keyword: Cambrian Temporal_Keyword: Carboniferous Temporal_Keyword: Cenozoic Temporal_Keyword: Cretaceous Temporal_Keyword: Devonian Temporal_Keyword: Early Devonian Temporal_Keyword: Early Jurassic Temporal_Keyword: Early Silurian Temporal_Keyword: Jurassic Temporal_Keyword: Late Devonian Temporal_Keyword: Late Permian Temporal_Keyword: Late Silurian Temporal_Keyword: Mesozoic Temporal_Keyword: Middle Devonian Temporal_Keyword: Ordovician Temporal_Keyword: Paleozoic Temporal_Keyword: Permian Temporal_Keyword: Proterozoic Temporal_Keyword: Quaternary Temporal_Keyword: Silurian Temporal_Keyword: Tertiary Temporal_Keyword: Triassic Access_Constraints: This report, map, and/or dataset are 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. 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. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Contact_Position: GIS Data Manager/Cartographer Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Contact_Voice_Telephone: (907) 451-5029 Contact_Voice_Telephone: (907) 451-5020 Contact_Facsimile_Telephone: (907) 451-5050 Contact_Electronic_Mail_Address: dggspubs@alaska.gov Contact_Instructions: You may view our web site at http://www.dggs.alaska.gov for the latest information on available data. Please e-mail your questions and data requests when possible since our web site and e-mail address will remain current even if our phone number and mailing address change. Data_Set_Credit: This map synthesis was partially supported by the U.S. Geological Survey's National Mapping Program under cooperative agreement 1434-HQ-96-AG-01471. The views and conclusions contained in this document are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. government. Additional Acknowledgments: Map synthesis and compilation by D.S. Pinney; Technical review by R.A. Combellick and T.K. Bundtzen; Electronic digital cartography by A.M. McCarthy and G.R.C. Graham; Color design by Ann-Lillian Schell; Editing done by Paula K. Davis. Native_Data_Set_Environment: ArcInfo, ArcGIS post-version 7.0, and any text editor. Cross_Reference: Citation_Information: Originator: Bundtzen, T.K. Originator: Harris, E.E. Originator: Gilbert, W.G. Publication_Date: 1997 Title: Geologic Map of the Eastern Half of the McGrath Quadrangle, Alaska. Geospatial_Data_Presentation_Form: tabular digital data, map, vector digital data Series_Information: Series_Name: Report of Investigations Issue_Identification: RI 97-14A Publication_Information: Publication_Place: Fairbanks, Alaska - USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Online_Linkage: http://dx.doi.org/10.14509/2549 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Data for geologic layers was digitized off of a mylar geologic compilation. This compilation was done on a stable mylar of the USGS topographic base for the McGrath Quadrangle, Alaska that was photographically enlarged to 1:125,000. (Topographic base compiled in 1965, revised in 1978, 1980, and 1982.) Geologic data included in the compilation are the field maps and notes from this project as well as data from other sources as noted in the "Sources Cited" section. Logical_Consistency_Report: Polygon topology present and clean on appropriate coverages. Other coverages are line, point, or annotation coverages and do not require topologic relationships. Chain-node topology present. Completeness_Report: This data set includes coverages that contain information about materials units and fault system location. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Location data were determined visually using topographic maps at scales of 1:63,360 and 1:40,000 scale topographic maps using USGS map bases. Some stations were plotted on 1:63,360 scale Infra-Red and 1:40,000 scale black and white air photos during mapping. Because location information was acquired during the time period 1980-1992, GPS technology was not used to determine locations. Instead, geologic contacts, sample, and station locations were visually hand-plotted onto stable mylar bases from the field maps and in some instances, air photos. The lists of samples were visually checked against the lists of analyzed samples returned from the laboratories. Quantitative_Horizontal_Positional_Accuracy_Assessment: Horizontal_Positional_Accuracy_Value: 100 Horizontal_Positional_Accuracy_Explanation: The estimated horizontal error of this dataset is +/- 100 meters. Geologic map data have a horizontal positional accuracy dependent on the "on-screen" method of digital cartography. Map error is induced by: (1) the nominal scale of the aerial photographs on which it is based, with an estimated potential error due to a pen line width of approximately 0.001 being equivalent to approximately 1.5 meters on the ground; (2) the error produced by suturing and stretching air photos during orthorectification, with measured errors ranging from X-Y meters; (3) the digitizing RMS error, which varies with digitizing session from X-Y meters; and (4) the accuracy of the human operator digitizing the geologic linework from the topographic base maps and orthophoto, with an estimated error due to a pen line width of approximately 0.001 being equivalent to approximately 1.5 meters on the ground. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Thommen TM altimeters were frequently used and calibrated daily. Quantitative_Vertical_Positional_Accuracy_Assessment: Vertical_Positional_Accuracy_Value: 6 Vertical_Positional_Accuracy_Explanation: The estimated horizontal error of this dataset is +/- 6 meters, based upon the inherent instrument errors of the Thommen TM altimeter. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Bundtzen, T.K. Originator: Harris, E.E. Originator: Gilbert, W.G. Publication_Date: 1997 Title: Geologic Map of the Eastern Half of the McGrath Quadrangle, Alaska. Geospatial_Data_Presentation_Form: tabular digital data, map, vector digital data Series_Information: Series_Name: Report of Investigations Issue_Identification: RI 97-14A Publication_Information: Publication_Place: Fairbanks, Alaska - USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 34 pp., 1 sheet, scale 1:125,000 Online_Linkage: http://dx.doi.org/10.14509/2549 Source_Scale_Denominator: 125000 Type_of_Source_Media: paper map and report Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19800701 Ending_Date: 19970630 Source_Currentness_Reference: Published in 1997 based on a compilation of work done in the area from a period of 1981 to 1997 Source_Citation_Abbreviation: Bundtzen and others, 1997 Source_Contribution: See references cited in reports in RI 1997-14A and RI 1997-14B Source_Information: Source_Citation: Citation_Information: Originator: Bundtzen, T.K. Originator: Kline, J.T. Originator: Smith, T.E. Originator: Albanese, M.D. Publication_Date: 1987 Title: Geologic Map of the McGrath A-2 Quadrangle, Alaska Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Professional Report 91 Issue_Identification: PR 91 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 20 pp., 1 sheet, scale 1:63,360 Online_Linkage: http://dx.doi.org/10.14509/2272 Source_Scale_Denominator: 63360 Type_of_Source_Media: paper map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1987 Source_Currentness_Reference: Publication date Source_Citation_Abbreviation: Bundtzen and others, 1987 Source_Contribution: Unit descriptions, engineering characteristics, and hazards information presented in publication RI 1997-14B are largely based upon the mapping and observations provided in this publication. Source_Information: Source_Citation: Citation_Information: Originator: Gilbert, W.G. Originator: Solie, D.N. Originator: Kline, J.T. Publication_Date: 1988 Title: Geologic Map of the McGrath A-3 Quadrangle, Alaska Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Professional Report 92 Issue_Identification: PR 92 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 2 sheets, scale 1:63,360 Online_Linkage: http://dx.doi.org/10.14509/2273 Source_Scale_Denominator: 63360 Type_of_Source_Media: paper map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1988 Source_Currentness_Reference: Publication date Source_Citation_Abbreviation: Gilbert and others, 1988 Source_Contribution: Unit descriptions, engineering characteristics, and hazards information presented in publication RI 1997-14B are largely based upon the mapping and observations provided in this publication. Source_Information: Source_Citation: Citation_Information: Originator: Kline, J.T. Originator: Gilbert, W.G. Originator: Bundtzen, T.K. Publication_Date: 1986 Title: Preliminary Geologic Map of the McGrath C-1 Quadrangle, Alaska Series_Information: Series_Name: Report of Investigations Issue_Identification: RI 86-25 Publication_Information: Publication_Place: Fairbanks, Alaska - USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 1 sheet, scale 1:63,360 Online_Linkage: http://dx.doi.org/10.14509/2424 Source_Scale_Denominator: 63360 Type_of_Source_Media: paper map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1986 Source_Currentness_Reference: Publication date Source_Citation_Abbreviation: Kline and others, 1986 Source_Contribution: Unit descriptions, engineering characteristics, and hazards information presented in publication RI 1997-14B are largely based upon the mapping and observations provided in this publication. Process_Step: Process_Description: The coverages included in this project are digitized from a mylar compilation of geologic field maps produced on USGS topo bases of the area. Map unit (polygon) locations and attributes were checked by three reviewers familiar with the dominant geologic rock types and structures and/or the specific geology of the McGrath quadrangle area. Location data were determined visually using topographic maps at scales of 1:63,360 and 1:40,000 scale topographic maps using USGS map bases. Some stations were plotted on 1:63,360 scale Infra-Red and 1:40,000 scale black and white air photos during mapping. Because location information was acquired during the time period 1980-1992, GPS technology was not used to determine locations. Instead, geologic contacts, sample, and station locations were visually hand-plotted onto stable mylar bases from the field maps and in some instances, air photos. Process_Date: 1997 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 5N Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -153.000 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Layer_Name: mcgmat_arc Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000001 Ordinate_Resolution: 0.000001 Planar_Distance_Units: meters Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 5N Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -153.000 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Layer_Name: mcgmat_poly Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000001 Ordinate_Resolution: 0.000001 Planar_Distance_Units: meters Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 5N Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -153.000 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Layer_Name: faultzone Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000001 Ordinate_Resolution: 0.000001 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: D_Clarke_1866 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.978698 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: mcgmat_arc Entity_Type_Label: mcgmat_arc.shp Entity_Type_Definition: Object type is vector, there are 5396 rows associated with this entity, and the entity values refer to material units contacts. Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: mcgmat_poly Entity_Type_Label: mcggmat_poly.shp Entity_Type_Definition: Object type is vector, there are 2208 rows associated with this entity, and the entity values refer to the material units name abbreviations for each specific polygon represented on the map. Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: MAT Attribute_Definition: A unique three letter abbreviation given to each materials unit represented on the map. Materials units imply a hazards classification. Attribute_Definition_Source: Alaska Division of Geological and Geophysical Surveys Attribute_Domain_Values: Codeset_Domain: Codeset_Name: RI1997-14_codeset.pdf Codeset_Source: Alaska Division of Geological & Geophysical Surveys http://www.dggs.alaska.gov/metadata/RI1997-14_codeset.pdf Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: faultzone_arc Entity_Type_Label: faultzone_arc.shp Entity_Type_Definition: Object type is vector, there is 1 row associated with this entity, and the entity value refers to the location of the Denali-Farewell fault system. Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: faultzone_poly Entity_Type_Label: faultzone_poly.shp Entity_Type_Definition: Object type is vector, there is 1 row associated with this entity, and the entity value refers to the polygon showing the location of the Denali-Farewell fault system. Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Contact_Position: Natural Resource Technician 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_TDD/TTY_Telephone: None available. Contact_Facsimile_Telephone: 907-451-5050 Contact_Electronic_Mail_Address: dggspubs@alaska.gov Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays Contact_Instructions: Please view our web site (http://www.dggs.alaska.gov) for the latest information on available data. Please contact us using the e-mail address provided above when possible. Resource_Description: Report of Investigation 97-14B Distribution_Liability: The State of Alaska makes no express or implied warranties (including warranties of merchantability and fitness) with respect to the character, function, or capabilities of the electronic services 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, any failure thereof, or otherwise, and in no event will the State of Alaska's liability to the requester or anyone else exceed the fee paid for the electronic service or product. Standard_Order_Process: Non-digital_Form: Current publication is available on paper. To purchase this or other printed reports and maps, contact DGGS by phone (907-451-5020), e-mail (dggspubs@alaska.gov), or fax (907-451-5050). Payment accepted: Cash, check, money order, VISA, or MasterCard. Fees: Printed publication can be purchased for $13.00 (contact information below) plus shipping if mailed. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: PDF Format_Version_Number: 1.6 File_Decompression_Technique: No compression applied Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://dx.doi.org/10.14509/2550 Digital_Form: Digital_Transfer_Information: Format_Name: ArcGIS Shapefile Format_Version_Number: ESRI ArcGIS 9.x File_Decompression_Technique: No compression applied Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://dx.doi.org/10.14509/2550 Offline_Option: Offline_Media: CD-ROM Recording_Format: Joliet Fees: Digital files on CD-ROM are available for $10.00 (contact information below). No fees charged for downloaded files. Ordering_Instructions: Order by phone (907-451-5020), e-mail (dggspubs@alaska.gov), or fax (907-451-5050). The DGGS web site (http://www.dggs.alaska.gov/) has a list of electronic data available and an order form that can be printed. Payment accepted: Cash, check, money order, VISA, or MasterCard. Turnaround: Digital downloads: less than 30 minutes for most files. Offline CD/DVD-ROMs: 1-2 weeks unless special arrangements are made and an express fee is paid. Technical_Prerequisites: Please check the MapInfo web site (http://www.mapinfo.com/) for the latest documentation on importing ESRI shape files. Metadata_Reference_Information: Metadata_Date: 20080506 Metadata_Review_Date: 20080506 Metadata_Future_Review_Date: 20100506 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Contact_Position: Metadata Manager Contact_Address: Address_Type: mailing and physical address Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: 907-451-5039 Contact_Facsimile_Telephone: 907-451-5050 Contact_Electronic_Mail_Address: dggspubs@alaska.gov Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays. Contact_Instructions: Please contact us through the e-mail address above whenever possible. Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: none Metadata_Use_Constraints: If the user has modified the data in any way they are obligated to describe the types of modifications they have performed in the supporting metadata file. User specifically agrees not to imply that changes they made were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys.