Reifenstuhl, R.R. Mull, C.G. Harris, E.E. LePain, D.L. Wallace, W.K. 2000 report, map, vector digital data Report of Investigation RI 2000-1B Fairbanks, AK State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys 10 p., 1 sheet, scale 1:63,360 http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=2676 Alaska Division of Geological & Geophysical Surveys (DGGS) has conducted 1:63,360-scale geologic mapping of the Sagavanirktok B-1 Quadrangle (640 square km—equivalent to four 7.5 minute quadrangles). This mapping project reinterprets micropaleontologic correlations for 17 Sagavanirktok Quadrangle wells, and reprocesses data from the one publicly-available seismic line. Surface geologic mapping, subsurface-to-surface stratigraphic age control, and seismic framework are required to reliably decipher the complex geology of this key area of the Brooks Range. Outcrops within the Sagavanirktok B-1 Quadrangle are the closest surface expressions of Prudhoe Bay source and reservoir rocks. This study yields critical petroleum-related information from these surface exposures, and how they relate to the area subsurface stratigraphy. At the time this project was published, the State of Alaska depended on the petroleum industry for approximately 80 percent of its revenue, most of which comes from oil fields on the North Slope. North Slope oil production is declining. This mapping project addresses this problem by providing the state and industry with the first published geologic map of this part of the North Slope oil province at a scale other than 1:2,500,000. Detailed geologic mapping of the quadrangle addresses the lack of understanding of the petroleum-geology framework of the eastern North Slope, Colville basin, and the stratigraphic transition from the National Petroleum Reserve in Alaska (NPRA) to the Arctic National Wildlife Refuge (ANWR). This detailed mapping and petroleum-related data is pertinent to oil exploration for Prudhoe Bay satellite fields and new play-type reevaluations, as well as assist private-sector exploration efforts, and speed the exploration process. This data will contribute to increased confidence in exploration and evaluation efforts in areas west of Prudhoe Bay. 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 "RI2000-1_codeset.pdf." Layers include: >anwr_arc boundary of the Arctic National Wildlife Refuge >bedding_point lineaments and bedding planes >cleavage_point strike and dip of bedding cleavage >estbed_point estimated bedding planes >joints_point joints >sagbed_arc geologic bedrock contacts under surficial geology (arc) >sagbed_polygon geologic bedrock contacts under surficial geology (polygon) >sagd-holes_point locations of industry-drilled test wells >sagfold_arc fold axis (anticline or syncline) traces (arc) >sagfold_point fold axis (anticline or syncline) traces (point) >sagstr_arc fault contacts 1999 2000 publication date complete none planned -147.606990 -147.000000 69.501031 69.248958 ISO 19115 Topic Category geoscientificInformation none Basins Biostratigraphy Carbonates Clastics Coal Depositional Environment Diagenesis Faulting Fluvial Folding Formations Fossils Geologic Glacial Processes Marine Marine Transgressions Measured Stratigraphic Section Modal Analysis Orogeny Paleobotany Paleoenvironment Paleontology Palynology Petrography Petroleum Provenance Resource Assessment Sandstone Sedimentary Shale Structure Surficial Tectonics Trace Fossils Turbidites Volcanic Ash none Arctic National Wildlife Refuge Brooks Range North Slope Basin Shaviovik River none Brookian Sequence Canning Formation Echooka Formation Ellesmerian Sequence Endicott Group Franklinian Sequence Hue Shale Unit Ivishak Formation Kavik Shale Kayak Shale Kekiktuk Conglomerate Kemik Sandstone Kingak Shale Lisburne Group Pebble Shale Unit Prince Creek Formation Sadlerochit Group Shublik Formation none Cambrian Cenozoic Cretaceous Devonian Jurassic Mesozoic Mississippian Ordovician Paleozoic Pennsylvanian Permian Precambrian Proterozoic Quaternary Silurian Tertiary Triassic 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). 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. State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys GIS Data Manager/Cartographer mailing and physical

3354 College Road

Fairbanks AK 99709-3707 (907) 451-5029 (907) 451-5020 (907) 451-5050 dggspubs@alaska.gov You may view our web site at http://www.dggs.dnr.state.ak.us 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. Funding for the geologic mapping was provided by the U.S. Geological Survey, National Cooperative Geologic Mapping Program, under STATEMAP award number 99HQAG0121 under the NCGM STATEMAP program for FY1999. 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. Additional Acknowledgments: Map reviewed by R.F. Swenson and M.T. Whalen. Electronic cartography by A.G. Sturmann and B.G. Gage. Microsoft Windows XP SP2, ArcGIS 9.+, and any text editor. Reifenstuhl, R.R. Mull, C.G. Harris, E.E. LePain, D.L. Pinney, D.S. Wallace, W.K. 2000 report, map, vector digital data Report of Investigation RI 2000-1A Fairbanks, AK State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys 15 p., 1 sheet, scale 1:63,360 http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=2675 Pinney, D.S. 2000 map Report of Investigation RI 2000-1C Fairbanks, AK State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Scale 1:63,360 http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=2677 Pinney, D.S. 2000 map Report of Investigation RI 2000-1D Fairbanks, AK State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Scale 1:63,360 http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=2678 Location data for geologic point coverages were entered manually from GPS units into a spreadsheet. Data for point, line, and polygon coverages were determined in the field using 1:63,360-scale topographic maps and 1:50,000 (nominal) scale, color-infrared aerial photographs. 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. Attributes were verified for consistency and completeness during the creation of the metadata. Topology is present on appropriate polygon and line coverages; others are point coverages. This dataset includes coverages that contain information about geologic units, their ages, and field sample locations; structural features; structural measurements; and locations of industry-drilled test wells at 1:63,360 scale DGGS location data and estimated position errors were manually entered into a spreadsheet. Sample numbers and locations with selected data were spatially registered and analyzed in ArcGIS software. Location data for the surficial and materials maps were determined visually using topographic maps at a scale of 1:63,360 and 1:50,000 (nominal) scale, color-infrared aerial photographs. See "Source_Information" section for horizontal positional accuracy of locations not measured by DGGS. 100 A value of estimated position error in meters was calculated by the GPS units and recorded for each sample location. This error results from items such as error in satellite positions, mathematical error introduced by the formulas used by the GPS unit for calculating position, and errors caused by narrow satellite alignments. Estimated position error is a value determined by the GPS manufacturer for the calculation and geometric error as a whole. "Selective availability," a deliberate degradation of GPS data managed by the U.S. government that induces an additional error of approximately 100 meters to a GPS location, was was in effect until May 1, 2000, and thus during the time of this field work. 110 A value of estimated position error in meters. Bedrock geologic map data have a horizontal positional accuracy dependent on: 1) the 1:50,000-scale (nominal) 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 accuracy of the human zoom transfer scope operator in tracing the line work from acetate overlays to topographic base maps, with an estimated error due to a pen line width of approximately 0.001 being equivalent to approximately 1.5 meters on the ground; 3) the accuracy of the zoom transfer process itself, error magnitude highly variable and unknown but potentially large; 4) the digitizing RMS error of 0.003 inches (input coverage units), which equates to approximately 5 meters on the ground for a 1:63,360-scale map; and 5) the accuracy of the human operator digitizing the geologic from the topographic base maps, with an estimated error due to a pen line width of approximately 0.001 being equivalent to approximately 1.5 meters on the ground. The bedrock field maps were digitized using a map tablet and cross-hair mouse. Map error is induced by: (1) transferring map data from base topography to a mylar compilation map, 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 digitizing RMS error [24 control points on a regular grid have an average RMS error of 10.8 meters on the ground; individual control point error ranges from 4.3 to 21.2 meters on the ground]; and (3) the accuracy of the human operator digitizing the geologic line work from the topographic base map, with an estimated error due to a pen line width of approximately 0.001 being equivalent to approximately 1.5 meters on the ground. Total potential horizontal error for bedrock and comprehensive geologic map features is estimated to be approximately 110 meters. Reifenstuhl, R.R. 1995 Combellick, R.A. (ed.) Tannian, F. (ed.) 1995 Professional Report PR 117F Fairbanks, AK, USA Alaska Division of Geological & Geophysical Surveys p. 53-67 http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=2322 paper 1995 publication date Reifenstuhl (1995) These data were used to further define the bedrock geology of the Sagavanirktok B-1 area. See this publication cited in the Process Step section below. Reifenstuhl, R.R. 1994 map U.S. Minerals Management Service Report No. 14-35-0001-30643 Fairbanks, AK, USA Alaska Division of Geological & Geophysical Surveys 2 sheets, scales 1:250,000, 1:300, 63 p. paper 1994 Publish date Reifenstuhl (1994) These data were used to further define the bedrock geology of the Sagavanirktok B-1 area. See this publication cited in the Process Step section below. Reifenstuhl, R.R. 1991 map and vector digital data Public Data File PDF 91-21B Fairbanks, AK, USA Alaska Division of Geological & Geophysical Surveys 1 sheet, scale 1:250,000, 11 p. http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=1488 paper 1991 Publish date Reifenstuhl (1991a) These data were used to further define the bedrock geology of the Sagavanirktok B-1 area. See this publication cited in the Process Step section below. Reifenstuhl, R.R. 1991 map and vector digital data Public Data File PDF 91-21D Fairbanks, AK, USA Alaska Division of Geological & Geophysical Surveys 10 p. http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=1490 paper 1991 Publish date Reifenstuhl (1991b) These data were used to further define the bedrock geology of the Sagavanirktok B-1 area. See this publication cited in the Process Step section below. Field work - Field work for bedrock investigations, including ridge traverses and examination of riverbank exposures, was conducted approximately between June 15 and July 10, 1999. Field notes and rock samples were compiled and collected throughout the Sagavanirktok B-1. Bedrock mapping involved using sources cited below. Bedrock mappers recorded observations on 1:50,000- and 1:63,360-scale topographic base maps, compiled onto a 1:50,000-scale mylar map after the field season ended. Field stations were located using hand held GPS units. Field station notes and GPS location data were manually entered into a spreadsheet. Reifenstuhl (1994) Reifenstuhl (1995) Reifenstuhl (1991a) Reifenstuhl (1991b) 1999 Laboratory data - See the report for RI 2000-1B for more information. 1999 Digital Cartography - Surficial-geologic information was digitized from the paper USGS topographic base map into Arc/Info 7.0.4 GIS (ArcEdit module) using a large-format digitizing table. Surficial-geologic polygons and lines were then edited and attributed using Arc, Info, and ArcEdit. Bedrock point data of locations of structural observations (strike, dip, cleavage, jointing, etc.) were intersected with the surficial-geologic polygon coverage using the Arc command "intersect" in order to identify locations that were mapped as surficial materials based on aerial photography but were found to have small exposures that were desirable to be mapped as bedrock. These areas were then modified in the surficial-geologic coverages to be areas of bedrock exposure. Final bedrock and surficial geology polygon coverages were merged using the Arc command "union" to generate the polygon coverage used to make the comprehensive geologic map. Other cartographic elements, primarily text and tables, were created in CorelDraw, converted to CGM format, and imported into ArcPlot for final layout. 2000 Universal Transverse Mercator 6 0.9996 -147.000 0.0 500000 0.0 coordinate pair 0.000032 0.000032 meters anwr_arc Universal Transverse Mercator 6 0.9996 -147.000 0.0 500000 0.0 coordinate pair 0.000256 0.000256 meters bedding_point Universal Transverse Mercator 6 0.9996 -147.000 0.0 500000 0.0 coordinate pair 0.000064 0.000064 meters cleavage_point Universal Transverse Mercator 6 0.9996 -147.000 0.0 500000 0.0 coordinate pair 0.000032 0.000032 meters estbed_point Universal Transverse Mercator 6 0.9996 -147.000 0.0 500000 0.0 coordinate pair 0.000064 0.000064 meters joints_point Universal Transverse Mercator 6 0.9996 -147.000 0.0 500000 0.0 coordinate pair 0.000064 0.000064 meters sagbed_polygon Universal Transverse Mercator 6 0.9996 -147.000 0.0 500000 0.0 coordinate pair 0.000064 0.000064 meters sagbed_arc Universal Transverse Mercator 6 0.9996 -147.000 0.0 500000 0.0 coordinate pair 0.000005 0.000005 meters sagd-holes_point Universal Transverse Mercator 6 0.9996 -147.000 0.0 500000 0.0 coordinate pair 0.000032 0.000032 meters sagfold_arc Universal Transverse Mercator 6 0.9996 -147.000 0.0 500000 0.0 coordinate pair 0.000032 0.000032 meters sagfold_point Universal Transverse Mercator 6 0.9996 -147.000 0.0 500000 0.0 coordinate pair 0.000064 0.000064 meters sagstr_arc D_Clarke_1866 Clarke 1866 6378206.400000 294.978698 anwr_arc.shp Object type is vector, there are no attributes associated with this entity, and the entity refers to the border of the Arctic National Wildlife Refuge Alaska Division of Geological & Geophysical Surveys anwr_arc bedding_point.shp Object type is point, there are 270 rows associated with this entity, and the entity refers to lineaments and bedding planes Alaska Division of Geological & Geophysical Surveys bedding_point CODE Arbitrary number assigned to the given station Alaska Division of Geological & Geophysical Surveys Unique sample number designated by the author(s) STATION Generic example of unique sample identifier or location of a geologic measurement: YrAAA999X: Yr=2 digit year of sample collection, AAA=geologist's initials (one to three characters), 999=unique station number, X=unique alpha character designating a sample was taken at the field station. Geologists' initials are: MU - C.G. Mull, RR - R. Reifenstuhl, DD - Unknown, DL - D. LePain, Ha - E. Harris, WW - W. Wallace. Alaska Division of Geological & Geophysical Surveys Unique sample number designated by the author(s). SHOW Indicates whether or not the point is printed on the published paper map Alaska Division of Geological & Geophysical Surveys "y" - The point is printed or shown on the Interpretive bedrock-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska (Publication RI2000-1B-SH1). "n" - The point is not printed or shown on the Interpretive bedrock-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska (Publication RI2000-1B-SH1). A value of "n" may indicate that a duplicate value was measured nearby or the point was simply omitted at the discretion of the author(s). B1 Indicates whether or not the point is located within the Sagavanirktok B1 quadrangle Alaska Division of Geological & Geophysical Surveys "y" - The point is printed or shown on the Interpretive bedrock-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska (Publication RI2000-1B-SH1). "n" - The point is not printed or shown on the Interpretive bedrock-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska (Publication RI2000-1B-SH1). A value of "n" may indicate that a duplicate value was measured nearby or the point was simply omitted at the discretion of the author(s). STRIKE Strike of plane using "Right-hand rule," where north is 0 and degrees increase clockwise to 360, always 90 degrees counter-clockwise from dip direction Alaska Division of Geological & Geophysical Surveys 0 351 degrees DIP Degrees that a bedding plane is inclined relative to horizontal, horizontal being 0 degrees, vertical being 90 degrees; always 90 degrees clockwise from strike Alaska Division of Geological & Geophysical Surveys 0 88 degrees UP? Indicates whether or not the top of the bed was identified from bedding features Alaska Division of Geological & Geophysical Surveys "u" - It was undecided whether or not the top of the bed could be identified from bedding features. "Y" - The top of the bed could be identified from bedding features. "N" - The top of the bed could not be identified from bedding features. "Y?" - The top of the bed was likely identified from bedding features. SYMBOL Point symbol signifying strike and dip of bedding features and various lineaments Alaska Division of Geological & Geophysical Surveys 1 Strike and dip Alaska Division of Geological & Geophysical Surveys 2 Strike and dip, approximate Alaska Division of Geological & Geophysical Surveys 3 Strike and dip of beds Alaska Division of Geological & Geophysical Surveys 4 Strike and dip, overturned Alaska Division of Geological & Geophysical Surveys 7 Bearing of lineation Alaska Division of Geological & Geophysical Surveys 27 Overturned anticline Alaska Division of Geological & Geophysical Surveys ANGLE Dip direction measured counter-clockwise from north Alaska Division of Geological & Geophysical Surveys 0 358 degrees cleavage_point.shp Object type is point, there are 19 rows associated with this entity, and the entity refers to strike and dip of bedding cleavage Alaska Division of Geological & Geophysical Surveys cleavage_point CODE Arbitrary number assigned to the given station Alaska Division of Geological & Geophysical Surveys Unique sample number designated by the author(s) STATION Generic example of unique sample identifier or location of a geologic measurement: YrAAA999X: Yr=2 digit year of sample collection, AAA=geologist's initials (one to three characters), 999=unique station number, X=unique alpha character designating a sample was taken at the field station. Geologists' initials are: DL - D. LePain, Ha - E. Harris, WW - W. Wallace. Alaska Division of Geological & Geophysical Surveys Unique sample number designated by the author(s). SHOW Indicates whether or not the point is printed on the published paper map Alaska Division of Geological & Geophysical Surveys "y" - The point is printed or shown on the Interpretive bedrock-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska (Publication RI2000-1B-SH1). "n" - The point is not printed or shown on the Interpretive bedrock-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska (Publication RI2000-1B-SH1). A value of "n" may indicate that a duplicate value was measured nearby or the point was simply omitted at the discretion of the author(s). B1 Indicates whether or not the point is located within the Sagavanirktok B1 quadrangle Alaska Division of Geological & Geophysical Surveys "y" - The point is printed or shown on the Interpretive bedrock-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska (Publication RI2000-1B-SH1). "n" - The point is not printed or shown on the Interpretive bedrock-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska (Publication RI2000-1B-SH1). A value of "n" may indicate that a duplicate value was measured nearby or the point was simply omitted at the discretion of the author(s). STRIKE Strike of plane using "Right-hand rule," where north is 0 and degrees increase clockwise to 360, always 90 degrees counter-clockwise from dip direction Alaska Division of Geological & Geophysical Surveys 6 352 degrees DIP Degrees that a bedding plane is inclined relative to horizontal, horizontal being 0 degrees, vertical being 90 degrees; always 90 degrees clockwise from strike Alaska Division of Geological & Geophysical Surveys 18 90 degrees SYMBOL Point symbol signifying strike and dip of bedding features and various lineaments Alaska Division of Geological & Geophysical Surveys 12 Strike and dip of bedding cleavage Alaska Division of Geological & Geophysical Surveys CNTRCLK 360 minus the strike value, where north is 0 and degrees increase clockwise to 360, always 90 degrees counter-clockwise from dip direction Alaska Division of Geological & Geophysical Surveys 8 354 degrees ANGLE Dip direction measured counter-clockwise from north Alaska Division of Geological & Geophysical Surveys 15 359 degrees estbed_point.shp Object type is point, there are 35 rows associated with this entity, and the entity refers to estimated bedding planes Alaska Division of Geological & Geophysical Surveys estbed_point STRIKE Strike of plane using "Right-hand rule," where north is 0 and degrees increase clockwise to 360, always 90 degrees counter-clockwise from dip direction Alaska Division of Geological & Geophysical Surveys 65 360 degrees DIP Degrees that a bedding plane is inclined relative to horizontal, horizontal being 0 degrees, vertical being 90 degrees; always 90 degrees clockwise from strike Alaska Division of Geological & Geophysical Surveys 0 99 degrees SHOW Indicates whether or not the point is printed on the published paper map Alaska Division of Geological & Geophysical Surveys "y" - The point is printed or shown on the Interpretive bedrock-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska (Publication RI2000-1B-SH1). "n" - The point is not printed or shown on the Interpretive bedrock-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska (Publication RI2000-1B-SH1). A value of "n" may indicate that a duplicate value was measured nearby or the point was simply omitted at the discretion of the author(s). B1 Indicates whether or not the point is located within the Sagavanirktok B1 quadrangle Alaska Division of Geological & Geophysical Surveys "y" - The point is printed or shown on the Interpretive bedrock-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska (Publication RI2000-1B-SH1). "n" - The point is not printed or shown on the Interpretive bedrock-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska (Publication RI2000-1B-SH1). A value of "n" may indicate that a duplicate value was measured nearby or the point was simply omitted at the discretion of the author(s). UP? Indicates whether or not the top of the bed was identified from bedding features Alaska Division of Geological & Geophysical Surveys "u" - It was undecided whether or not the top of the bed could be identified from bedding features. SYMBOL Point symbol signifying strike and dip of bedding features and various lineaments Alaska Division of Geological & Geophysical Surveys 8 Horizontal beds Alaska Division of Geological & Geophysical Surveys 74 Estimated bedding Alaska Division of Geological & Geophysical Surveys X-COORD Longitude (UTM) of sample location Alaska Division of Geological & Geophysical Surveys 482694.2 499624.9 meters Y-COORD Latitude (UTM) of sample location Alaska Division of Geological & Geophysical Surveys 7682675 7691176 meters ANGLE Dip direction measured counter-clockwise from north Alaska Division of Geological & Geophysical Surveys 0 350 degrees joints_point.shp Object type is point, there are 7 rows associated with this entity, and the entity refers to joint locations and related measurements Alaska Division of Geological & Geophysical Surveys joints_point CODE Arbitrary number assigned to the given station Alaska Division of Geological & Geophysical Surveys Unique sample number designated by the author(s) STATION Generic example of unique sample identifier or location of a geologic measurement: YrAAA999X: Yr=2 digit year of sample collection, AAA=geologist's initials (one to three characters), 999=unique station number, X=unique alpha character designating a sample was taken at the field station. Geologists' initials are: DL - D. LePain, RR - R. Reifenstuhl, WW - W. Wallace. Alaska Division of Geological & Geophysical Surveys Unique sample number designated by the author(s). SHOW Indicates whether or not the point is printed on the published paper map Alaska Division of Geological & Geophysical Surveys "y" - The point is printed or shown on the Interpretive bedrock-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska (Publication RI2000-1B-SH1). "n" - The point is not printed or shown on the Interpretive bedrock-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska (Publication RI2000-1B-SH1). A value of "n" may indicate that a duplicate value was measured nearby or the point was simply omitted at the discretion of the author(s). B1 Indicates whether or not the point is located within the Sagavanirktok B1 quadrangle Alaska Division of Geological & Geophysical Surveys "y" - The point is printed or shown on the Interpretive bedrock-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska (Publication RI2000-1B-SH1). "n" - The point is not printed or shown on the Interpretive bedrock-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska (Publication RI2000-1B-SH1). A value of "n" may indicate that a duplicate value was measured nearby or the point was simply omitted at the discretion of the author(s). STRIKE Strike of joint using "Right-hand rule," where north is 0 and degrees increase clockwise to 360, always 90 degrees counter-clockwise from dip direction Alaska Division of Geological & Geophysical Surveys 40 195 degrees DIP Degrees that a joint plane is inclined relative to horizontal, horizontal being 0 degrees, vertical being 90 degrees; always 90 degrees clockwise from strike Alaska Division of Geological & Geophysical Surveys 50 88 degrees SYMBOL Point symbol signifying strike and dip of bedding features and various lineaments Alaska Division of Geological & Geophysical Surveys 19 Strike and dip of joints Alaska Division of Geological & Geophysical Surveys ANGLE Dip direction measured counter-clockwise from north Alaska Division of Geological & Geophysical Surveys 75 230 degrees sagbed_arc.shp Object type is vector, there are 408 rows associated with this entity, and the entity refers to bedrock unit boundaries Alaska Division of Geological & Geophysical Surveys sagbed_arc CODE Line symbols for contacts, defined as boundaries between geologic formations or other rock units Alaska Division of Geological & Geophysical Surveys 0 hidden line, defines the polygon boundary, but is not displayed on the map for aesthetic purposes Alaska Division of Geological & Geophysical Surveys 4 Bounding box and neatlines Alaska Division of Geological & Geophysical Surveys 5 contact Alaska Division of Geological & Geophysical Surveys 7 contact, inferred Alaska Division of Geological & Geophysical Surveys 9 contact, concealed Alaska Division of Geological & Geophysical Surveys sagbed_polygon.shp Object type is vector, there are 66 rows associated with this entity, and the entity refers to bedrock units Alaska Division of Geological & Geophysical Surveys sagbed_polygon UNIT Bedrock map unit names, any unit ending with a "?" indicates uncertainty Alaska Division of Geological & Geophysical Surveys Qu ***Note: The unit label "Qu" listed in the attribute table "sagbed_polygon.shp" with the software-defined attribute/column FID whose values are 4 and 55 should be labeled as "Qa".*** Alaska Division of Geological & Geophysical Surveys lake lake Alaska Division of Geological & Geophysical Surveys RI2000-1_codeset.pdf Alaska Division of Geological & Geophysical Surveys http://www.dggs.dnr.state.ak.us/metadata/RI2000-1_codeset.pdf BUNIT Bedrock map unit names, any unit ending with a "?" indicates uncertainty Alaska Division of Geological & Geophysical Surveys Qu ***Note: The unit label "Qu" listed in the attribute table "sagbed_polygon.shp" with the software-defined attribute/column FID whose values are 4 and 55 should be labeled as "Qa".*** Alaska Division of Geological & Geophysical Surveys lake lake Alaska Division of Geological & Geophysical Surveys RI2000-1_codeset.pdf Alaska Division of Geological & Geophysical Surveys http://www.dggs.dnr.state.ak.us/metadata/RI2000-1_codeset.pdf sagd-holes_point.shp Object type is point, there are no attributes associated with this entity, and the entity refers to locations of industry-drilled test wells Alaska Division of Geological & Geophysical Surveys sagd-holes_point sagfold_arc.shp Object type is vector, there are 37 rows associated with this entity, and the entity refers to fold axis (anticline or syncline) traces Alaska Division of Geological & Geophysical Surveys sagfold_arc CODE Line symbols for fold axis (anticline or syncline) traces Alaska Division of Geological & Geophysical Surveys 13 fault, inferred Alaska Division of Geological & Geophysical Surveys 35 fold axis, approximately located Alaska Division of Geological & Geophysical Surveys sagfold_point.shp Object type is point, there are 117 rows associated with this entity, and the entity refers to types of fold axes (anticline or syncline) Alaska Division of Geological & Geophysical Surveys sagfold_point CODE Line symbols for fold axis (anticline or syncline) traces Alaska Division of Geological & Geophysical Surveys 22 anticline Alaska Division of Geological & Geophysical Surveys 23 syncline Alaska Division of Geological & Geophysical Surveys 26 overturned syncline Alaska Division of Geological & Geophysical Surveys 59 glacial outwash Alaska Division of Geological & Geophysical Surveys 75 anticline, both limbs dipping in the same direction, double arrows on steeper limb. Alaska Division of Geological & Geophysical Surveys 76 syncline, both limbs dipping in the same direction, double arrows on steeper limb. Alaska Division of Geological & Geophysical Surveys 77 anticline, double arrows on steeper limb Alaska Division of Geological & Geophysical Surveys 78 syncline, double arrows on steeper limb Alaska Division of Geological & Geophysical Surveys sagstr_arc.shp Object type is vector, there are 158 rows associated with this entity, and the entity refers to fault contacts Alaska Division of Geological & Geophysical Surveys sagstr_arc CODE Line symbols for fold axis (anticline or syncline) traces Alaska Division of Geological & Geophysical Surveys 13 fault, inferred Alaska Division of Geological & Geophysical Surveys 19 thrust fault, inferred Alaska Division of Geological & Geophysical Surveys State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys GIS Data Manager/Cartographer mailing and physical address

3354 College Road

Fairbanks AK 99709-3707 USA (907) 451-5020 (907) 451-5029 (907) 451-5050 dggspubs@alaska.gov You may view our web site at http://www.dggs.dnr.state.ak.us 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. Report of Investigation 2000-1B 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. 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. Printed publication can be purchased for $16.00 (contact information below) plus shipping if mailed. PDF 1.6 No compression applied http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=2676 ArcGIS Shapefile ESRI ArcGIS 9.x No compression applied http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=2676 CD-ROM Joliet Digital files on CD-ROM are available for $10.00 (contact information below). No fees charged for downloaded files. Order by phone (907-451-5020), e-mail (dggspubs@alaska.gov), or fax (907-451-5050). Payment accepted: Cash, check, money order, VISA, or MasterCard. 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. Please check the MapInfo web site (http://www.mapinfo.com/) for the latest documentation on importing ESRI shape files. 20080506 20080506 20090525 State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Metadata Manager mailing and physical address

3354 College Road

Fairbanks AK 99709-3707 USA 907-451-5039 907-451-5050 dggspubs@alaska.gov 8 am to 4:30 pm, Monday through Friday, except State holidays. Please contact us through the e-mail address above whenever possible. FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 none 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.