Identification_Information: Citation: Citation_Information: Originator: Gillis, R.J. Originator: Decker, P.L. Originator: Wartes, M.A. Originator: Loveland, A.M. Originator: Hubbard, T.D. Publication_Date: 2014 Title: Geologic map of the south-central Sagavanirktok Quadrangle, North Slope, Alaska Geospatial_Data_Presentation_Form: geodatabase Series_Information: Series_Name: Report of Investigation Issue_Identification: RI 2014-4 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 24 p., 2 sheets, scale 1:63,360 Online_Linkage: https://doi.org/10.14509/29138 Description: Abstract: Geologic map of the south-central Sagavanirktok Quadrangle, North Slope, Alaska, Report of Investigation 2014-4, presents 1:63,360-scale geologic mapping of the south-central Sagavanirktok Quadrangle in northern Alaska. This area encompasses approximately 600 square miles in the northern foothills of the Brooks Range, and includes stratigraphic and structural elements important to understanding the oil and gas potential of Alaska's North Slope. The complete report, geodatabase, and ESRI fonts and style files are available from the DGGS website: http://doi.org/10.14509/29138. Purpose: Alaska's North Slope is largely covered by tundra and past exploration has relied heavily on expensive seismic data. The geology exposed along the northern mountain front provides much-needed insight into the evolution of the petroleum system. Many of the geologic relationships delimited by our mapping can be projected into the subsurface and are directly relevant to ongoing exploration. This study presents new findings pertinent to evaluating the resource potential of the gas-prone, south-central Sagavanirktok Quadrangle region. In addition to relevant oil and gas issues, detailed geologic mapping in the Sagavanirktok River investigates several important scientific questions related to deposition of the Brookian Megasequence and evolution of the Colville foreland basin. 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: 2008 Ending_Date: 2016 Currentness_Reference: ground condition Status: Progress: complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -149.681407 East_Bounding_Coordinate: -148.173547 North_Bounding_Coordinate: 69.515642 South_Bounding_Coordinate: 68.984195 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 Pipeline Theme_Keyword: Apatite Theme_Keyword: Aufeis State #1 Theme_Keyword: Basins Theme_Keyword: Bedrock Theme_Keyword: Bentonite Theme_Keyword: Bivalves Theme_Keyword: Brookian Theme_Keyword: Channel Theme_Keyword: Chert Theme_Keyword: Clay Theme_Keyword: Claystone Theme_Keyword: Coal Theme_Keyword: Colluvium Theme_Keyword: Conglomerate Theme_Keyword: Contact Theme_Keyword: Cross Section Theme_Keyword: DGGS Theme_Keyword: Energy Resources Theme_Keyword: Energy Section Maps of Interest Theme_Keyword: Eolian Theme_Keyword: Exhumation Theme_Keyword: Fission Track Theme_Keyword: Floodplain Theme_Keyword: Fluvial Theme_Keyword: Folds Theme_Keyword: Fossils Theme_Keyword: GeMS DB L3 Compliant Theme_Keyword: GeMS DB v1pt1 Theme_Keyword: Geologic Map Theme_Keyword: Glacial Theme_Keyword: Gravel Theme_Keyword: Helminthopsis Theme_Keyword: Hydrocarbon Theme_Keyword: Inoceramus Theme_Keyword: Interpretation Theme_Keyword: Lacustrine Theme_Keyword: Limestone Theme_Keyword: Lupine State #1 Theme_Keyword: Marine Theme_Keyword: Megafossils Theme_Keyword: Metamorphic Theme_Keyword: Mica Theme_Keyword: Mudstone Theme_Keyword: Nonmarine Theme_Keyword: Oil Seeps Theme_Keyword: Oil and Gas Basin Theme_Keyword: Paleocurrent Theme_Keyword: Pebble Theme_Keyword: Permeability Theme_Keyword: Petroleum Theme_Keyword: Planolites Theme_Keyword: Plutonic Theme_Keyword: Porosity Theme_Keyword: Provenance Theme_Keyword: Pyrite Theme_Keyword: Quartz Theme_Keyword: Quartzite Theme_Keyword: Regression Theme_Keyword: Rocks Theme_Keyword: STATEMAP Project Theme_Keyword: Sand Theme_Keyword: Sandstone Theme_Keyword: Schist Theme_Keyword: Sediment Theme_Keyword: Sedimentary Theme_Keyword: Sedimentary Rocks Theme_Keyword: Sedimentology Theme_Keyword: Seismic Interpretation Theme_Keyword: Sequence Stratigraphy Theme_Keyword: Shale Theme_Keyword: Shelf Theme_Keyword: Shoreface Theme_Keyword: Siderite Theme_Keyword: Silt Theme_Keyword: Siltstone Theme_Keyword: Stratigraphy Theme_Keyword: Subsurface Theme_Keyword: Susie State #1 Theme_Keyword: Thermal History Theme_Keyword: Thermal Maturity Theme_Keyword: Thermochronology Theme_Keyword: Trace Fossils Theme_Keyword: Transgression Theme_Keyword: Transgressive Theme_Keyword: Tuff Theme_Keyword: Turbidity Theme_Keyword: Unconformity Theme_Keyword: Uplift Theme_Keyword: Well Logs Place: Place_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Place_Keyword: Arctic Alaska Place_Keyword: Arctic National Wildlife Refuge Place_Keyword: Brooks Range Place_Keyword: Colville Basin Place_Keyword: Dalton Highway Place_Keyword: Echooka River Place_Keyword: Happy Valley Place_Keyword: Icecut Place_Keyword: Ivishak River Place_Keyword: Lignite Place_Keyword: Lupine River Place_Keyword: Lupinvanirktok Place_Keyword: North Slope Place_Keyword: Philip Smith Mountains Place_Keyword: Sagashak Creek Place_Keyword: Sagavanirktok Quadrangle Place_Keyword: Sagavanirktok River Place_Keyword: Sagwon Bluffs Place_Keyword: Trans-Alaska Pipeline Stratum: Stratum_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Stratum_Keyword: Arctic Alaska Terrane Stratum_Keyword: Aufeis Anticline Stratum_Keyword: Cannery Formation Stratum_Keyword: Gilead Sandstone Stratum_Keyword: Hue Shale Stratum_Keyword: Icecut Thrust Fault Stratum_Keyword: Ivishak Anticline Stratum_Keyword: Kingak Shale Stratum_Keyword: Kuparuk Anticline Stratum_Keyword: Kuparuk Thrust Fault Stratum_Keyword: Lower Cretaceous Unconformity Stratum_Keyword: Lupine Anticline Stratum_Keyword: Lupine Thrust Fault Stratum_Keyword: Nanushuk Formation Stratum_Keyword: Prince Creek Formation Stratum_Keyword: Sagashak Syncline Stratum_Keyword: Sagavanirktok Formation Stratum_Keyword: Sagavanirktok River Glaciation Stratum_Keyword: Sagwon Anticline Stratum_Keyword: Sagwon Member Stratum_Keyword: Schrader Bluff Formation Stratum_Keyword: Seabee Formation Stratum_Keyword: Susie Anticline Stratum_Keyword: Toolik Syncline Stratum_Keyword: Torok Formation Stratum_Keyword: White Hills Member 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: Albian Temporal_Keyword: Campanian Temporal_Keyword: Cenomanian Temporal_Keyword: Cenozoic Temporal_Keyword: Coniacian Temporal_Keyword: Cretaceous Temporal_Keyword: Maastrichtian Temporal_Keyword: Paleocene Temporal_Keyword: Santonian Temporal_Keyword: Turonian Temporal_Keyword: Visean Temporal_Keyword: Wenlockian Temporal_Keyword: Ypresian Temporal_Keyword: Zanclean 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: We dedicate this map to the late Rocky Reifenstuhl, whose countless mapping traverses contributed significantly to our present understanding of North Slope geology. We trust the many stories of his legendary energy will continue to inspire the next generation of Alaska geologists. He is greatly missed. Outcrop stratigraphic work by David LePain and Russ Kirkham contributed to our understanding key stratigraphic relationships in the map area. Valuable discussions with a number of colleagues greatly helped refine our views of the local and regional geology, including David LePain, David Houseknecht, Wesley Wallace, Peter Flaig, Dolores Van der Kolk, Dick Garrard, and Gregory Wilson. University of Alaska Fairbanks students Steve Polkowski, Dolores Van der Kolk, Jake Mongrain, and Peter Flaig all helped with field logistics at some point in the project. We thank Dick Garrard for persistently pushing us forward toward completion of this map, Greg Wilson and Wes Wallace for timely and thoughtful reviews, and Gil Mull for impressing upon us the potential stratigraphic importance of the area and for many insightful conversations and suggestions while planning the mapping project and when considering the final version of the map. Helicopter pilot Tom, Rat, Ratledge expertly transported us throughout the map area and back to camp safely, often pointing out an unnoticed outcrop in the process. Completion of the map was made possible by funding from a variety of sources, including operating and capital improvement project funds from the State of Alaska (Division of Geological & Geophysical Surveys and Division of Oil & Gas), and the STATEMAP program of the National Cooperative Geologic Mapping Program administered by the U.S. Geological Survey (award 08HQAG0051). Fieldwork was also supported by substantial contributions from companies involved in the Alaska oil and gas industry. Recent sponsors (2007 and 2008) included Anadarko Petroleum Corp., BG Alaska, BP, Chevron, ConocoPhillips Alaska Inc., ENI, Petro-Canada, Pioneer Natural Resources, Repsol YPF Exploration and Production Co., Shell International Exploration and Production Co., and Talisman Energy Inc. This map was converted to GeMS then finalized by Alec Wildland and Mike Hendricks. Geologic map conversion to the GeMS standard was funded by the USGS National Cooperative Geologic Mapping Program under StateMap award number G21AC10706, 2021, and the State of Alaska General Fund. 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. Cross_Reference: Citation_Information: Originator: Hubbard, T.D. Publication_Date: 2016 Title: Surficial-geologic map of parts of the Sagavanirktok and Toolik river drainages, northern Brooks Range foothills, Alaska Series_Information: Series_Name: Report of Investigation Issue_Identification: RI 2016-6 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: https://doi.org/10.14509/29472 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Attribute fields within each feature class are populated using the map symbology and corresponding applicable values from the GeMS and AK GeMS specifications. When known, certainty in attribute interpretation is indicated in the relevant fields. Attribute accuracy varies throughout the map and is scale-dependent. Logical_Consistency_Report: All polygon features were topologically validated according to the AK GeMS geologic mapping schema specifications. Completeness_Report: This publication is part of 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: 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: 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: Geologic mapping - During the summer 2008 field season, rock unit identification, bedding attitudes, structural observations, hydrocarbon indications, and analytical data from samples collected at field stations were used to ground-truth and refine preliminary geologic interpretations based in part on subsurface data. Approximately 420 line km (260 line mi) of proprietary two-dimensional (2-D) seismic reflection data through the map area (seven dip lines and three strike lines) were interpreted by P.L. Decker prior to 2008 field activities, integrating available surface information and subsurface correlations in the Lupine Unit 1, Aufeis Unit 1, Ivishak Unit 1, and Echooka Unit 1 wells in the map area and the Susie Unit 1, Nora Federal 1, and Bush Federal 1 wells nearby to the north (figs. 2 and 3). The seismic data constrained the continuity and plunge of major structures and in projecting lithologic and structural contacts into areas of significant Quaternary cover where surface constraints were limited or lacking. Rubble traces and traceable beds evident from aerial photography and topography helped define folds and other structure and contributed to the map interpretation in areas of little or no intact bedrock outcrop. In most cases, rubble traces were visited to confirm formation assignments and all interpretations were reconciled with available subsurface information. Generalized Quaternary units were mapped only in larger river drainages and areas of thick Quaternary cover where the subcropping units could not be confidently identified. Therefore, the distribution of bedrock as mapped intentionally over-represents the amount of bedrock encountered in the field to more clearly display regional-scale stratigraphic and structural relationships. The conceptual framework for the geology incorporates key ideas from preexisting literature with new data and interpretations developed from field mapping and analytical findings. The accompanying map or report provides a comprehensive bibliographic reference list of prior work used to identify and delineate rock units and structural elements. Process_Date: 1997 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 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: 2022 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: 6 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -147 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: 6378206.4 Denominator_of_Flattening_Ratio: 294.9786982 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: sag_ak_gems_db_pkg Entity_Type_Definition: Geodatabase, layer files, style files, and fonts Entity_Type_Definition_Source: DGGS Entity_Attribute_Layer_Name: sag_ak_gems_db_pkg Detailed_Description: Entity_Type: Entity_Type_Label: sag_gems_db_pkg Entity_Type_Definition: Geodatabase, layer files, style files, and fonts Entity_Type_Definition_Source: DGGS Entity_Attribute_Layer_Name: sag_gems_db_pkg Detailed_Description: Entity_Type: Entity_Type_Label: sag_gems_shapefile_pkg Entity_Type_Definition: Shapefiles and open data files Entity_Type_Definition_Source: DGGS Entity_Attribute_Layer_Name: sag_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 2014-4 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/10.14509/29138 Fees: Free download Metadata_Reference_Information: Metadata_Date: 20221202 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