Geologic map of the Kavik River area, northeastern Brooks Range, Alaska

Wartes, M.A. Wallace, W.K. Loveland, A.M. Gillis, R.J. Decker, P.L. Reifenstuhl, R.R. Delaney, P.R. LePain, D.L. Carson, E.C. 2011 Geologic map of the Kavik River area, northeastern Brooks Range, Alaska vector digital data Report of Investigations RI 2011-3A Fairbanks, AK, USA State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys 14 p., 1 sheet, scale 1:63,360 http://www.dggs.alaska.gov/pubs/id/22602 The 1:63,360 Kavik River geologic map area consists of ~620 square miles and ties together previous DGGS mapping in the Sadlerochit and Shublik Mountains area of the western Arctic National Wildlife Refuge (ANWR) on the east and the structurally complex foothills and mountain front near the Kemik gas accumulation on the west. The map area exposes a unique intersection of North Slope stratigraphy where all three major depositional megasequences are mappable in close association (Ellesmerian, Beaufortian, and Brookian). In recent years, interest in hydrocarbon exploration in the Brooks Range foothills has increased considerably, resulting in an opportunity to compile previous studies as well as to carry out additional field studies. Various topical studies and geological mapping in the Kavik River area by DGGS and collaborating agencies is an ongoing effort to address specific structural and stratigraphic problems along the northern foothills of the northeastern Brooks Range. The layers listed below are present as ArcGIS shapefiles. 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 won heading starting "Entity_Type_Label." Basic unit information is also included in the booklet that accompanies this map. Layers include: >kavik_units: geology polygons >kavik_contacts: geologic contacts >border: geologic map boundary >kavik_faults: fault traces >kavik_folds: axial trace of folds >kavik_structure_data: strike and dip of bedding >kavik_section_lines: cross section locations (cross sections are depicted in companion publication RI 2011-XB) >kavik_Q_polygons: Quaternary geologic polygons >kavik_Q_contact: Quaternary geologic contacts >kavik_Q_structure: Quaternary moraines 2011 publication date Complete None planned -147.00000 -146.00000 69.721263 69.25000 ISO 19115 Topic Category geoscientificInformation None Geologic Geologic Map Geology Oil and Gas Basin Rock Units Sedimentary Rocks Sedimentary Sedimentology Sedimentation Seismic Profile STATEMAP Project Structural Geology Structure Structure Map None Arctic National Wildlife Refuge Canning River Mount Michelson Quadrangle North Slope Basin North Slope Kavik River Juniper Creek Fin Creek None Kemik Sandstone Kekiktuk Conglomerate Kingak Shale Lisburne Group Sadlerochit Group Shublik Formation Sagavanirktok Formation Canning Formation Hue Shale Pebble Shale Ivishak Formation Kayak Shale Juniper Sandstone None Cenozoic Cretaceous Mesozoic Paleozoic Pennsylvanian Permian Mississippian Proterozoic Quaternary Jurassic 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 mailing and physical

3354 College Road

Fairbanks AK 99709-3707 USA 907-451-5020 907-451-5050 dggspubs@alaska.gov 8 am to 4:30 pm, Monday through Friday, except State holidays Please view our web site (http://www.dggs.alaska.gov) for the latest information on available data. Please contact us using the e-mail address provided above when possible. Geologic mapping was supported in part by the STATEMAP program under award number 06HQAG0024, administered by the U.S. Geological Survey.Additional funding was provided through a Capital Improvement grant from the State of Alaska.Field studies were also supported by a consortium of sponsors including Conoco Phillips, Anadarko, ENI, Petro-Canada, BG Alaska, FEX, Pioneer Natural Resources, and Shell. Carson, E.C. 2009 Surficial-geologic map of the Kavik River area, west-central Mount Michelson Quadrangle, northeastern Brooks Range, Alaska map Report of Investigations RI 2009-3 Fairbanks, Alaska Alaska Division of Geological & Geophysical Surveys 1 sheet, scale 1:63,360 http://www.dggs.alaska.gov/pubs/id/19361 Geologic point, line, and polygon data were determined in the field or on air photos at a scale of approximately 1:63,360 and topographic maps at scales of 1:63,360 and larger. Feature attributes were checked by the geologists who conducted the field observations. To check attribute accuracy, a check plot was visually compared to the geologist's original map compilation. Discrepancies between the digital geospatial dataset and the original analog or digital compilation were corrected as needed. The geologic interpretations presented in this report have undergone two technical reviews by geologists familiar with the subject of the report or geology of the map area. Reviewers' suggestions were incorporated into the final draft when deemed appropriate by the author. All surficial-geologic contacts are represented by a solid line on the printed map. Surficial-geologic units were simplified from Carson, 2009, users should refer to the originating publication for additional information about the surficial-geology of this map area. Polygon topology is present and clean on the originating geospatial dataset. All polygon features were were topologically validated using the ESRI ArcGIS 9.2 software prior to export to shape file format. The logical consistency of the point and line files has been visually checked but not systematically verified. This dataset includes geospatial information about beds traceable on air photos and/or in the field. The dataset displays: geologic units and contacts; fold and fault traces; strike, dip, and fold axis attitude; man made infrastructure such as airstrips, roads, etc.; point elevations digitized from the raster map; and wells.Vector base map is from Carson, 2009. Locations were determined in the field using raster images of topographic base maps and Garmin GPS units. The estimated positional error calculated by the GPS unit was not recorded. Bedrock geologic map data also have a horizontal positional accuracy dependent on the "on-screen" method of digital cartography. 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 inches being equivalent to approximately 1.5 meters on the ground; (2) the digitizing RMS error (30 control points on a regular grid have an average RMS error of 14.0 meters on the ground; individual control point error ranges from 2.9 to 24.0 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 inches being equivalent to approximately 1.5 meters on the ground. The average potential horizontal error for bedrock geologic map features is estimated to be approximately 15 meters. Bader, J.W. Bird, K.J. 1986 Geologic map of the Demarcation Point, Mt. Michelson, Flaxman Island, and Barter Island quadrangles, Alaska map U.S. Geological Survey Miscellaneous Investigations Map I 1791 1 sheet, scale 1:250,000 250000 paper 1986 publication date Bader and Bird, 1986 regional geologic mapping Map Compilation - Geologic mapping took place during the 2006 field season. Mappers recorded observations in field notebooks and on aerial photos and topographic maps, predominantly at 1:63,360 scale. Bedrock mapping involved using aerial photographs and topographic maps on a daily basis for checking geologic contacts and units. All compilations were made by hand on stable, registered mylar at 1:63,360 scale. Stations were located using aerial photos, topographic maps, and in most instances, GPS devices were used. Data stations were also plotted by hand on stable mylar topographic bases and coordinates determined by digitizing. Data were compiled on a single layer of stable, registered mylar at 1:63,360 scale. The mylar was then scanned and digitized. Bader and Bird, 1986 2006 Digital Cartography - The compilation mylar was scanned as a high-resolution .tiff file, which was imported into ArcGIS 9.2 and geographically registered in UTM coordinates (see spatial reference information below).Geologic polygons, linear features, and point data were digitized "on-screen" and attributed with appropriate supporting information.Editing and quality control checks took place at every process step. All final map layout and editing was done in Adobe Illustrator, Version CS2. 2011 Vector Universal Transverse Mercator 6 0.99960 -147.0 0 500000.0 0 coordinate pair 0.000001 0.000001 meters border Universal Transverse Mercator 6 0.99960 -147.0 0 500000.0 0 coordinate pair 0.000001 0.000001 meters kavik_contacts Universal Transverse Mercator 6 0.99960 -147.0 0 500000.0 0 coordinate pair 0.000001 0.000001 meters kavik_faults Universal Transverse Mercator 6 0.99960 -147.0 0 500000.0 0 coordinate pair 0.000001 0.000001 meters kavik_folds Universal Transverse Mercator 6 0.99960 -147.0 0 500000.0 0 coordinate pair 0.000001 0.000001 meters kavik_Q_contact Universal Transverse Mercator 6 0.99960 -147.0 0 500000.0 0 coordinate pair 0.000001 0.000001 meters kavik_Q_polygons Universal Transverse Mercator 6 0.99960 -147.0 0 500000.0 0 coordinate pair 0.000001 0.000001 meters kavik_Q_structure Universal Transverse Mercator 6 0.99960 -147.0 0 500000.0 0 coordinate pair 0.000001 0.000001 meters kavik_section_lines Universal Transverse Mercator 6 0.99960 -147.0 0 500000.0 0 coordinate pair 0.000001 0.000001 meters kavik_structure_data Universal Transverse Mercator 6 0.99960 -147.0 0 500000.0 0 coordinate pair 0.000001 0.000001 meters kavik_units North American Datum of 1927 Clarke 1866 6378137 298.25722210088 kavik_units kavik_units.shp vector, represents geologic formations Alaska Division of Geological & Geophysical Surveys unit_name A unique two to five letter abbreviation given to each map unit represented on the map Alaska Division of Geological & Geophysical Surveys Geologic Map of the Kavik River Area, northeastern Brooks Range, Alaska This report border border.shp vector, represent the outline of the map area Alaska Division of Geological & Geophysical Surveys Area represents the map area in square meters State of Alaska Division of Geological & Geophysical Surveys Area represents the map area in square meters kavik_folds kavik_folds.shp vector, represents fold axial traces Alaska Division of Geological & Geophysical Surveys fold_type defines type of fold Alaska Division of Geological & Geophysical Surveys seis_scl sycline, derived from seismic interpretation Alaska Division of Geological & Geophysical Surveys seis_acl anticline, derived from seismic interpretation Alaska Division of Geological & Geophysical Surveys scl_sl syncline with steep limb, double arrow on steep limb Alaska Division of Geological & Geophysical Surveys scl_minor syncline, minor scale Alaska Division of Geological & Geophysical Surveys scl_co syncline, covered Alaska Division of Geological & Geophysical Surveys scl_apx syncline, approximately located Alaska Division of Geological & Geophysical Surveys scl syncline Alaska Division of Geological & Geophysical Surveys ot_scl_sl overturned syncline with a steep limb; double arrow on steep limb Alaska Division of Geological & Geophysical Surveys ot_scl overturned syncline Alaska Division of Geological & Geophysical Surveys ot_acl_co overturned anticline, covered Alaska Division of Geological & Geophysical Surveys ot_acl overturned anticline Alaska Division of Geological & Geophysical Surveys mono_sl monocline with steep limb; double arrow represents steep limb Alaska Division of Geological & Geophysical Surveys mono_co monocline, covered Alaska Division of Geological & Geophysical Surveys acl_sl anticline with steep limb; double arrow on steep limb Alaska Division of Geological & Geophysical Surveys acl_minor anticline, minor scale Alaska Division of Geological & Geophysical Surveys acl_co anticline, covered Alaska Division of Geological & Geophysical Surveys acl anticline Alaska Division of Geological & Geophysical Surveys A_scl_sl approximately located syncline with steep limb; double arrow on steep limb Alaska Division of Geological & Geophysical Surveys A_acl_sl approximately located anticline with steep limb; double arrow on steep limb Alaska Division of Geological & Geophysical Surveys A_scl approximately located syncline Alaska Division of Geological & Geophysical Surveys A_mono_sl approximately located monocline with steep limb; double arrow on steep limb Alaska Division of Geological & Geophysical Surveys A_acl approximately located anticline Alaska Division of Geological & Geophysical Surveys kavik_faults kavik_faults.shp vector, represents fault traces Alaska Division of Geological & Geophysical Surveys fault_type defines type of fault Alaska Division of Geological & Geophysical Surveys A_seis_thrust approximately located thrust fault derived from seismic interpretation Alaska Division of Geological & Geophysical Surveys A_thrust approximately located thrust fault Alaska Division of Geological & Geophysical Surveys A_transverse approximately located transverse fault Alaska Division of Geological & Geophysical Surveys thrust thrust fault Alaska Division of Geological & Geophysical Surveys transverse transverse fault Alaska Division of Geological & Geophysical Surveys kavik_contacts kavik_contacts.shp vector, geological map unit contacts/boundaries Alaska Division of Geological & Geophysical Surveys contact_ty defines type of contact Alaska Division of Geological & Geophysical Surveys approx approximately located contact Alaska Division of Geological & Geophysical Surveys approx_q approximately located, queried contact Alaska Division of Geological & Geophysical Surveys covered covered contact Alaska Division of Geological & Geophysical Surveys NULL contact (represented with solid line indicating high degree of certainty) Alaska Division of Geological & Geophysical Surveys kavik_section_lines kavik_section_lines.shp cross section and seismic section lines Alaska Division of Geological & Geophysical Surveys line_id defines the cross section and/or seismic line Alaska Division of Geological & Geophysical Surveys Line W (EP-28) Line W portion derived from seismic line EP-28 Alaska Division of Geological & Geophysical Surveys Line C (ARCO80-06) Line C portion derived from seismic line ARCO80-06 Alaska Division of Geological & Geophysical Surveys Line E (EP-27) Line E portion from seismic line EP-27 Alaska Division of Geological & Geophysical Surveys Line W surface section Line W Alaska Division of Geological & Geophysical Surveys Line C surface section Line C Alaska Division of Geological & Geophysical Surveys Line E surface section Line E Alaska Division of Geological & Geophysical Surveys kavik_Q_polygons kavik_Q_polygons.shp Quaternary geologic units Alaska Division of Geological & Geophysical Surveys unit Quaternary geological unit type (abbreviations for Quaternary units can be found on the map sheet and booklet for this report.Units were simplified from Carson, 2009) Alaska Division of Geological & Geophysical Surveys Geologic Map of the Kavik River Area, northeastern Brooks Range, Alaska This report kavik_Q_contact kavik_Q_contact.shp contacts between Quaternary geologic units (degree of certainty of contact is not indicated on this map; all Quaternary contacts are represented as solid lines) Carson, E.C., 2009, Surficial-geologic map of the Kavik River area, west-central Mount Michelson Quadrangle, northeastern Brooks Range, Alaska: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2009-3, 1 sheet, scale 1:63,360. contact_ty contact type Alaska Division of Geological & Geophysical Surveys <Null> All Quaternary contacts were taken from Carson, 2009 Alaska Division of Geological & Geophysical Surveys kavik_structure_data kavik_structure_data.shp strike and dip data Alaska Division of Geological & Geophysical Surveys station station location where structural data was collected Alaska Division of Geological & Geophysical Surveys Geologist-defined value consisting of a 2-digit year, 2- or 3-digit geologist initials, and 3-digit station id number, except where the value is wkw_2010 (which indicates a 3-digit geologist initials and a 4-digit year latitude latitude of station Alaska Division of Geological & Geophysical Surveys 69.25037 69.65401 decimal degrees 0.00001 longitude longitude of station Alaska Division of Geological & Geophysical Surveys -146.02820 -146.99442 decimal degrees 0.00001 structure_ structure type Alaska Division of Geological & Geophysical Surveys bedding inclined bedding Alaska Division of Geological & Geophysical Surveys bedding_horizontal horizontal bedding Alaska Division of Geological & Geophysical Surveys ot overturned bedding Alaska Division of Geological & Geophysical Surveys strike_rhr strike of bedding using right-hand-rule convention Alaska Division of Geological & Geophysical Surveys 3 347 degrees dip dip or incline of bedding relative to horizontal Alaska Division of Geological & Geophysical Surveys 3 89 degrees kavik_Q_structure kavik_Q_structure.shp Quaternary structures Alaska Division of Geological & Geophysical Surveys structure_ type of Quaternary structure Alaska Division of Geological & Geophysical Surveys ridge_crest ridge crest, moraine Alaska Division of Geological & Geophysical Surveys ridge_crest_queried ridge crest/moraine, queried Alaska Division of Geological & Geophysical Surveys State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys mailing and physical

3354 College Road

State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys

Fairbanks AK 99709-3707 USA 907-451-5020 FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 If the user has modified this metadata file in any way, the user is obligated to describe the types of modifications the user has made. User specifically agrees not to misrepresent this metadata file, 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.