Identification_Information: Citation: Citation_Information: Originator: Herriott, T.M. Originator: Wartes, M.A. Originator: Decker, P.L. Originator: Gillis, R.J. Originator: Shellenbaum, D.P. Originator: Willingham, A.L. Originator: Mauel, D.J. Publication_Date: 2018 Title: Geologic map of the Umiat-Gubik area, central North Slope, Alaska Geospatial_Data_Presentation_Form: geodatabase Series_Information: Series_Name: Report of Investigation Issue_Identification: RI 2018-6 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 55 p., 1 sheet, scale 1:63,360 Online_Linkage: https://doi.org/10.14509/30099 Description: Abstract: Report of Investigation 2018-6, Geologic map of the Umiat-Gubik area, central North Slope, Alaska, provides a 1:63,360-scale geologic map of the hydrocarbon-bearing Umiat-Gubik area of the central North Slope, Alaska, spans approximately 2,100 km2 at the northern extent of the Brooks Range foothills fold-and-thrust belt in the Colville foreland basin. This geologic map was prepared through assimilation of field observations, aerial and satellite imagery, seismic-reflection data, and well logs. Near-surface formation picks were available or derived for most of the area's 24 exploration wells, and two cross-sections were constructed along lines of section that are constrained at depth by our interpretations of publicly available two-dimensional seismic data. The mapped area hosts exposures of Upper Cretaceous strata in the Nanushuk, Seabee, Tuluvak, Schrader Bluff, and Prince Creek Formations, constituting an approximately 2-km-thick succession that crops out discontinuously in the low-relief, tundra-mantled region. This part of the siliciclastic Brookian megasequence stratigraphy comprises principally shallow-marine deposits. Our work benefits from and reflects recent sequence-stratigraphic advances that better constrain how this part of the Colville basin continued to fill by a northeastward prograding clastic wedge during Late Cretaceous time, with the exposed stratigraphy recognized as basin-scale topset units. A series of east- to east-southeast-trending, km-scale wavelength, gentle folds are mapped in the area. Anticlines are locally breached by thrusts and interpreted to be folded above faulted and penetratively deformed mid-Cretaceous Torok Formation. Undeveloped, sub-commercial (as of this writing) petroleum accumulations occur along doubly plunging anticlinal traps at three long-recognized fields in the map area: Umiat (mostly oil), Gubik (gas), and East Umiat (gas). The Umiat oil field structural culmination is modified by thrust faults that breach the surface, and the East Umiat gas field is associated with a north-dipping back-thrust that is evident in seismic data and cuts across the Upper Cretaceous stratigraphy; thrust faults near the Gubik gas field lie within and below the Torok Formation. Various interpretations have previously been published for some of the area's structures, with important implications for petroleum trap geometries in the gas-prone foothills region. We present new data and interpretations that support the inference of a principal, south-dipping thrust fault that breaches the north limb of Umiat anticline near Umiat. The complete report, geodatabase, and ESRI fonts and style files are available from the DGGS website: http://doi.org/10.14509/30099. Purpose: DGGS bedrock geologic mapping at a scale of 1:63,360 answers critical questions about the petroleum potential throughout the North Slope. The Energy Resources Section disseminates results of its work in public presentations and in high-quality, open-source, peer-reviewed publications. Umiat-Gubik and surrounding areas have long been recognized for their importance in understanding the geologic evolution of northern Alaska. Undeveloped, sub-commercial (as of this writing) petroleum accumulations occur along doubly plunging anticlinal traps at three long-recognized fields in the map area: Umiat (mostly oil), Gubik (gas), and East Umiat (gas). Supplemental_Information: This geodatabase is organized according to the AK GeMS mapping schema Hendricks, M.D., Ekberg, P.G., Athey, J.E., Wyatt, W.C., Willingham, A.L., and Naibert, T.J., 2021, AK GeMS data dictionary: A description of the Alaska geologic mapping schema: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 170, 10 p. https://doi.org/10.14509/30669. The distribution package includes ESRI fonts and style files, along with usage instructions. Further documentation of the symbology is provided by Ekberg, P.G., Hendricks, M.D., and Athey, J.E., 2021, AK GeMS symbology: A description of the AK GeMS style file: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 169, 7 p. https://doi.org/10.14509/30584 Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 2010 Ending_Date: 2018 Currentness_Reference: ground condition Status: Progress: complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -153.000011 East_Bounding_Coordinate: -151.061011 North_Bounding_Coordinate: 69.510588 South_Bounding_Coordinate: 69.239376 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Theme_Keyword: Alluvial Deposits Theme_Keyword: Bentonite Theme_Keyword: Brookian Theme_Keyword: DGGS Theme_Keyword: Energy Theme_Keyword: Folds Theme_Keyword: Foreland Basin Theme_Keyword: Formations Theme_Keyword: Fracture Theme_Keyword: GeMS Theme_Keyword: GeMS NCGMP09 Theme_Keyword: Geologic Theme_Keyword: Geologic Map Theme_Keyword: Hydrocarbon Theme_Keyword: Mudstone Theme_Keyword: Oil and Gas Theme_Keyword: Outcrop Samples Theme_Keyword: Petroleum Theme_Keyword: STATEMAP Project Theme_Keyword: Sandstone Theme_Keyword: Sedimentary Rocks Theme_Keyword: Seismic Interpretation Theme_Keyword: Sequence Stratigraphy Theme_Keyword: Siltstone Theme_Keyword: Surficial Geology Place: Place_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Place_Keyword: Anaktuvuk River Place_Keyword: Bearpaw Creek Place_Keyword: Brooks Range Place_Keyword: Chandler River Place_Keyword: Colville Basin Place_Keyword: Colville River Place_Keyword: Fossil Creek Place_Keyword: Gubic Gas Field Place_Keyword: Henry Creek Place_Keyword: Kakiagun Lake Place_Keyword: Kikiakrorak River Place_Keyword: Kogosukruk River Place_Keyword: Kutchik River Place_Keyword: North Slope Place_Keyword: Prince Creek Place_Keyword: Rainy Creek Place_Keyword: Roger Creek Place_Keyword: Seabee Creek Place_Keyword: Shivugak Bluff Place_Keyword: Tattitgak Bluff Place_Keyword: Umiat Place_Keyword: Umiat Lake Place_Keyword: Umiat Mountain Stratum: Stratum_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Stratum_Keyword: Barrow Trail Member Stratum_Keyword: Brookian Sequence Stratum_Keyword: Nanushuk Formation Stratum_Keyword: Prince Creek Formation Stratum_Keyword: Rogers Creek Member Stratum_Keyword: Schrader Bluff Formation Stratum_Keyword: Seabee Formation Stratum_Keyword: Sentinel Hill Member Stratum_Keyword: Tuluvak Formation Temporal: Temporal_Keyword_Thesaurus: Walker, J.D., Geissman, J.W., Bowring, S.A, and Babcock, L.E., comp., 2012, Geologic Time Scale v. 4.0: Geological Society of America Temporal_Keyword: Campanian Temporal_Keyword: Cenomanian Temporal_Keyword: Coniacian Temporal_Keyword: Cretaceous Temporal_Keyword: Maastrichtian Temporal_Keyword: Quaternary Temporal_Keyword: Santonian Temporal_Keyword: Turonian 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: Metadata 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_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 website (https://www.dggs.alaska.gov) for the latest information on available data. Please contact us using the e-mail address provided above when possible. Data_Set_Credit: The State of Alaska funded this study with additional support from the U.S. Geological Survey's National Cooperative Geologic Mapping Program (STATEMAP award number G12AC20187). Work by, and discussions with, Gil Mull, Dave LePain, and Dave Houseknecht were invaluable to this study. Ken Helmold, Dolores van der Kolk, Grant Shimer, Pete Flaig, Julie Houle, Meg Kramer, and Don Krouskop also shared their knowledge of the Umiat-Gubik area. Richard Kemnitz provided many insights regarding field logistics. Our field camps at Umiat were operated by Horst Expediting and 70 North. Helicopter pilot Tom 'Rat' Ratledge safely transported the crew during field campaigns. Trish Ekberg, Nina Harun, and Mike Hendricks served additional geographic information system (GIS) support. Simone Montayne managed metadata for this report. Kristen Janssen provided manuscript formatting and layout. We thank Dave LePain and Tom Homza for thorough reviews that improved the clarity and content of this paper. Cross_Reference: Citation_Information: Originator: Herriott, T.M. Originator: Wartes, M.A. Originator: Decker, P.L. Originator: Gillis, R.J. Originator: Shellenbaum, D.P. Originator: Mauel, D.J. Originator: Helmold, K.P. Publication_Date: 2015 Title: Geologic map of the Umiat-Gubik area, central North Slope, Alaska - Integration of fieldwork and subsurface data in a region of known oil and gas accumulations (poster): Geological Society of America, Cordilleran Section Annual Meeting, May 11-13, 2015, Anchorage, Alaska Series_Information: Series_Name: Poster and Presentation Issue_Identification: Herriott, T.M. and others, 2015 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 1 sheet Online_Linkage: https://doi.org/10.14509/29442 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Certainty in attribute interpretation varies throughout the map and is scale-dependent. Attribute fields within each feature class record the authors' degree of confidence in the existence or identity of applicable features. Logical_Consistency_Report: All polygon features were topologically validated according to specifications of the AK GeMS geologic mapping schema. Completeness_Report: This publication is released as a DGGS Report of Investigations (RI). An RI is the completed product of original research and analysis, and RIs use professional cartography and undergo rigorous peer review, editing, and revision. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Certainty in feature boundaries or location varies throughout the map. Data fields within each feature class and the accompanying orientation and location confidence lookup tables record the authors' degree of confidence in the location of applicable features. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Brosge, W.P. Originator: Whittington, C.L. Publication_Date: 1966 Title: Geology of the Umiat-Maybe Creek region, Alaska Series_Information: Series_Name: Professional Paper Issue_Identification: P 303-H Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: p. 501-638, 9 sheets Online_Linkage: https://dggs.alaska.gov/pubs/id/3835 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1966 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Brosge, W.P. and Whittington, C.L., 1966 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Carter, L.D. Originator: Galloway, J.P. Publication_Date: 1986 Title: Engineering - geologic maps of northern Alaska, Umiat Quadrangle Series_Information: Series_Name: Open-File Report Issue_Identification: OF 86-335 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 16 p., 2 sheets, scale 1:250,000 Online_Linkage: https://dggs.alaska.gov/pubs/id/11621 Source_Scale_Denominator: 250000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1986 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Carter, L.D. and Galloway, J.P., 1986 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Collins, F.R. Publication_Date: 1958 Title: Test wells, Umiat area, Alaska Series_Information: Series_Name: Professional Paper Issue_Identification: P 305-B Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: p. 71-206, 3 sheets Online_Linkage: https://dggs.alaska.gov/pubs/id/3838 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1958 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Collins, F.R., 1958 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Detterman, R.L. Originator: Bickel, R.S. Originator: Gryc, George Publication_Date: 1963 Title: Geology of the Chandler River region, Alaska Series_Information: Series_Name: Professional Paper Issue_Identification: P 303-E Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: p. 233-324, 16 sheets, scale 1:125,000 Online_Linkage: https://dggs.alaska.gov/pubs/id/3832 Source_Scale_Denominator: 125000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1963 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Detterman, R.L. and others, 1963 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: Ekberg, P.G. Originator: Hendricks, M.D. Originator: Athey, J.E. Publication_Date: 2021 Title: AK GeMS symbology: A description of the AK GeMS style file Series_Information: Series_Name: Miscellaneous Publication Issue_Identification: MP 169 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 7 p Online_Linkage: https://doi.org/10.14509/30584 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2021 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Ekberg, P.G. and others, 2021 Source_Contribution: GIS analysis and digital cartography Source_Information: Source_Citation: Citation_Information: Originator: Hendricks, M.D. Originator: Ekberg, P.G. Originator: Athey, J.E. Originator: Wyatt, W.C. Originator: Willingham, A.L. Originator: Naibert, T.J. Publication_Date: 2021 Title: AK GeMS data dictionary: A description of the Alaska geologic mapping schema Series_Information: Series_Name: Miscellaneous Publication Issue_Identification: MP 170 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 10 p Online_Linkage: https://doi.org/10.14509/30669 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2021 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Hendricks, M.D. and others, 2021 Source_Contribution: GIS analysis and digital cartography Source_Information: Source_Citation: Citation_Information: Originator: Kumar, Naresh Originator: Bird, K.J. Originator: Nelson, P.H. Originator: Grow, J.A. Originator: Evans, K.R. Publication_Date: 2002 Title: A digital atlas of hydrocarbon accumulations within and adjacent to the National Petroleum Reserve-Alaska (NPRA) Series_Information: Series_Name: Open-File Report Issue_Identification: OF 2002-71 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 80 p Online_Linkage: https://dggs.alaska.gov/pubs/id/14727 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: Kumar, Naresh and others, 2002 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: LePain, D.L. Originator: McCarthy, P.J. Originator: Kirkham, R.A. Publication_Date: 2009 Title: Sedimentology and sequence stratigraphy of the middle Albian-Cenomanian Nanushuk Formation in outcrop, central North Slope, Alaska Series_Information: Series_Name: Report of Investigation Issue_Identification: RI 2009-1 v. 2 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 76 p., 1 sheet Online_Linkage: https://doi.org/10.14509/19761 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2009 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: LePain, D.L. and others, 2009 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: https://dggs.alaska.gov/pubs/id/13144 Source_Scale_Denominator: 250000 Type_of_Source_Media: paper 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: Robinson, F.M. Publication_Date: 1958 Title: Test wells, Gubik area, Alaska Series_Information: Series_Name: Professional Paper Issue_Identification: P 305-C Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: p. 207-264, 2 sheets Online_Linkage: https://dggs.alaska.gov/pubs/id/3839 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1958 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Robinson, F.M., 1958 Source_Contribution: Geologic map compilation Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey National Cooperative Geologic Mapping Program Publication_Date: 2020 Title: GeMS (Geologic Map Schema)—A standard format for the digital publication of geologic maps Series_Information: Series_Name: Techniques and Methods Issue_Identification: TM 11-B10 Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: 1 p Online_Linkage: https://dggs.alaska.gov/pubs/id/30585 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2020 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: U.S. Geological Survey National Cooperative Geologic Mapping Program, 2020 Source_Contribution: GIS analysis and digital cartography Process_Step: Process_Description: Bedrock geologic mapping - The Alaska Divisions of Geological & Geophysical Surveys (DGGS) and Oil and Gas (DOG) conducted field studies near Umiat, Alaska, examining the region's Cretaceous stratigraphy and structural geology. We conducted two field campaigns in the Umiat-Gubik area (2010, 2011), mapping the geology of the Umiat B-5, B-4, B-3, and westernmost part of B-2 quadrangles (1:63,360-scale) on paper topographic maps and approximately 1:60,000-scale aerial photographs (Alaska High Aerial Photography [AHAP] circa 1978-1982). Field mapping was principally completed with helicopter transportation between widely spaced outcrops. In addition, we traversed on foot any laterally extensive or closely spaced outcrops. Tundra-mantled uplands constitute most of the field area and are generally devoid of outcrops, but curvilinear trends of subcrop, rubble-crop, and outcrop occur in hilly terrain northwest of the Colville River and were mapped on aerial photographs and satellite imagery. We field-checked traceable beds that were locally correlated to bluff-scale outcrops, rendering high-confidence stratigraphic and structural constraints in otherwise covered areas. Geologists observed details about the variations in texture, lithology, and orientation of the map units, collected rock samples, noted outcrop descriptions, and conducted structural measurements. We integrated numerous datasets to complete the interpretive mapping, including field observations, aerial and satellite imagery, seismic-reflection data, and well logs. In addition, selected samples were submitted for geochronologic and geochemical analysis, and the results were used to further interpret the stratigraphic and structural history of the map area. Process_Date: 2011 Process_Step: Process_Description: Geologic map compilation - Field observations were integrated with existing literature. Station locations for orientation measurements and rock samples were collected using hand-held recreation-grade GPS units. The mapped surficial geology is limited to alluvial deposits associated with modern rivers and creeks and simplified from Carter and Galloway (1986). Map unit boundaries and structures were compiled in an ArcGIS geodatabase using NAD27 base maps and aerial photography. The map and report received technical review and editing by several scientists familiar with the subject matter. The authors incorporated the reviewers' suggestions into the final draft when deemed appropriate. Source_Used_Citation_Abbreviation: Brosge, W.P. and Whittington, C.L., 1966 Source_Used_Citation_Abbreviation: Carter, L.D. and Galloway, J.P., 1986 Source_Used_Citation_Abbreviation: Collins, F.R., 1958 Source_Used_Citation_Abbreviation: Detterman, R.L. and others, 1963 Source_Used_Citation_Abbreviation: Kumar, Naresh and others, 2002 Source_Used_Citation_Abbreviation: LePain, D.L. and others, 2009 Source_Used_Citation_Abbreviation: Mull, C.G. and others, 2004 Source_Used_Citation_Abbreviation: Robinson, F.M., 1958 Process_Date: 2017 Process_Step: Process_Description: GIS analysis and digital cartography - This data distribution package's geologic and geographic features were organized and attributed according to the AK GeMS geologic mapping schema. The data were then programmatically transformed to provide download options in three formats: (1) an AK GeMS data package that includes the complete AK GeMS database and associated files, (2) a GeMS data package that is a conversion of the AK GeMS database into the base GeMS standard published by the USGS, and (3) a shapefile data package that includes two simple shapefile representations of the data. Source_Used_Citation_Abbreviation: Ekberg, P.G. and others, 2021 Source_Used_Citation_Abbreviation: Hendricks, M.D. and others, 2021 Source_Used_Citation_Abbreviation: U.S. Geological Survey National Cooperative Geologic Mapping Program, 2020 Process_Date: 2021 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: vector Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 5 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -153 Latitude_of_Projection_Origin: 0 False_Easting: 500000.000000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: .00000001 Ordinate_Resolution: .00000001 Planar_Distance_Units: Meters Geodetic_Model: Horizontal_Datum_Name: NAD27 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.40000000037 Denominator_of_Flattening_Ratio: 294.978698199999997 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: umiat_ak_gems_db_pkg Entity_Type_Definition: Geodatabase, layer files, style files, and fonts Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Entity_Attribute_Layer_Name: umiat_ak_gems_db_pkg Detailed_Description: Entity_Type: Entity_Type_Label: umiat_gems_db_pkg Entity_Type_Definition: Geodatabase, layer files, style files, and fonts Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Entity_Attribute_Layer_Name: umiat_gems_db_pkg Detailed_Description: Entity_Type: Entity_Type_Label: umiat_gems_shapefile_pkg Entity_Type_Definition: Shapefiles and open data files Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Entity_Attribute_Layer_Name: umiat_gems_shapefile_pkg Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Alaska Division of Geological & Geophysical Surveys Contact_Position: Metadata 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_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 website (https://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: RI 2018-6 Distribution_Liability: 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. Standard_Order_Process: Non-digital_Form: DGGS publications are available as free online downloads or you may purchase paper hard-copies or digital files on CD/DVD or other digital storage media by mail, phone, fax, or email from the DGGS Fairbanks office. 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. Turnaround time is 1-2 weeks unless special arrangements are made and an express fee is paid. Shipping charge will be the actual cost of postage and will be added to the total amount due. Contact us for the exact shipping amount. Fees: Contact DGGS for current pricing Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: geodatabase Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.14509/30099 Fees: Free download Metadata_Reference_Information: Metadata_Date: 20210901 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Alaska Division of Geological & Geophysical Surveys Contact_Person: Simone Montayne Contact_Position: Metadata 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_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 Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 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 Alaska Department of Natural Resources or Division of Geological & Geophysical Surveys. Metadata_Extensions: Online_Linkage: https://dggs.alaska.gov/metadata/dggs.ext Profile_Name: dggs metadata extensions