Hamilton, T.D. 200306 map and vector digital data Professional Report PR 121 Fairbanks, AK, USA State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (DGGS) 32 p., 1 sheet, scale 1:63,360 http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=7191 This report provides detailed (1:63,360-scale) surficial-geologic mapping in the Dalton Highway area, from the Sagavanirktok to the Itkillik Rivers, in the west-central Philip Smith Mountains quadrangle. The map area extends from the northern flank of the Endicott Mountains into the Arctic Foothills province. The surficial-geologic map from the Sagavanirktok to the Itkillik Rivers was selected by the Alaska Division of Geological & Geophysical Surveys (DGGS) for detailed (1:63,360-scale) mapping to document depositional relationships and the extent of surficial deposits near the Dalton Highway on the North Slope of Alaska. This map provides a comprehensive understanding of Northern Alaska glaciation. Detailed surficial mapping is an important first step in creating engineering-geologic maps to identify construction materials needed for maintenance and development of the infrastructure that connects and supports the North Slope oil fields. The layers listed below are present as ArcGIS shape files. To enhance print quality, this publication utilized a vector topography data set (released as an add-on to the DGGS publication PIR 2002-2). The topography data set is not included with this release. 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 "PR121_codeset.pdf". Layers include: >moraines_polygon polygon indicating the location of a prominent end moraine >stations_point radiocarbon sample locality >surfgeology_arc geologic unit contacts >surfgeology_polygon geologic unit polygons >symbols_arc symbols depicting locations of morainal crests, meltwater drainage channels, and glacial flow direction >symbols_point symbols showing relative motion and/or orientation of geomorphic features 1984 2003 June 2003 (publication date) Complete none planned -150.000000 -149.000000 68.779444 68.439167 ISO 19115 Topic Category geoscientificInformation None Alluvial Aufeis Avalanche Beach Deposits Colluvial Deposits Correlation Drainage Patterns Dunes Eolian Erratics Esker Fan Floodplain Fluvial Geologic Map Glacial Glacial Drift Glacial Lake Glaciation Glaciers Gravel Ice Contact Deposits Interglaciation Kettles Lacustrine Landslide Levees Loess Moraines Outwash Paleosols Peat Permafrost Piracy Radiocarbon Dating Reference Information Rock Glaciers Sand Silt Solifluction STATEMAP Project Stratigraphy Surficial Talus Tectonics Terrace Tundra Vegetation None Alaska, State of Atigun Gorge Atigun River Brooks Range Dalton Highway Endicott Mountains Galbraith Lake Imnavait Mountain Itigaknit Mountain Itkillik River Kuparuk River Philip Smith Mountains Quadrangle Sagavanirktok River Slope Mountain Toolik Lake Toolik River Trans-Alaska Pipeline None Itkillik Glaciation Nanushuk Formation Sagavanirktok Glaciation None Quaternary Holocene Pleistocene Tertiary This report, map, and/or data set 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 data sets utilizing these data sets 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 data sets, 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 address

3354 College Road

Fairbanks AK 99709-3707 USA (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 and geochronologic dating performed for this project was provided by the U.S. Geological Survey STATEMAP Program under award number 03HQAG0055 and by the Alaska State Legislature. Geologic field investigations by: T.D. Hamilton with: Alyeska Pipeline Service Company (1969-72); U.S. Geological Survey (1975-76); University of Colorado, Institute of Arctic & Alpine Research (1996-97); and Alaska Division of Geological & Geophysical Surveys (2001). Assisted by R.M. Thorson (1975-76) and D.S.P. Stevens (2001). Technical review by: R.A. Combellick and D.S. Kaufman. Digital cartography and map design by: Simone Montayne, E.E. Harris, and A.G. Sturmann. Edited by: Paula Davis and E.E. Harris Microsoft Windows XP SP2, ArcGIS 9.+, and any text editor. Harris, E.E. Mull, C.G. Reifenstuhl, R.R. Montayne, Simone 2002 map Preliminary Interpretive Report PIR 2002-2 Fairbanks, AK, USA State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys 1 sheet, scale 1:63,360 http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=2867 Geologic data used in the compilation was derived from the field maps and notes generated by this project as well as data from other sources as noted in the "Source_Information" section. Location data for geologic point coverages was acquired from hand held GPS units and compiled on paper field maps, air photos, and notebooks. A paper compilation map composed of all of the geologic information elements was scanned and digitized using a digitizing tablet. Spatial data attributes were attached to data objects using ArcInfo. Attributes were verified for consistency and completeness during the creation of the metadata. Topology is present on appropriate polygon and line data tables; others are point data tables. This data set includes coverages that contain information about geologic units, their ages, and field sample locations at 1:63,360 scale. 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 was 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. 10 A value of estimated position error in meters was calculated by hand held GPS units and recorded for each sample location. Estimated position error calculated by the GPS units was not less than 3 meters and averaged approximately 6 meters. The GPS system suffers from calculation and geometric error. 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 not in effect during DGGS's 2001 field work. 100 A value of estimated position error in meters. Surficial 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 surficial 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 geologic map features is estimated to be approximately 100 meters. Brosgé, W.P. Reiser, H.N. Dutro, J.T., Jr. Detterman, R.L. 1979 none map Miscellaneous Field Investigations Map MF-879-B none U.S. Geological Survey 1 sheet none 250000 paper 1979 ground condition Brosgé and others (1979) This publication was used to plan traverses and help define geologic units. Detterman, R.L. Bowsher, A.L. Dutro, J.T., Jr. 1958 none document Arctic v. 11 none none p. 43–61 none paper 1958 ground condition Detterman and others (1958) This publication was used to plan traverses and help define geologic units. Ellis, J.M. Calkin, P.E. 1984 none document Geological Society of America Bulletin v. 95 none Geological Society of America p. 897–912 none paper 1984 ground condition Ellis and Calkin (1984) This publication was used to plan traverses and help define geologic units. Hamilton, T.D. 1978 none map Miscellaneous Field Studies Map MF-879-A none U.S. Geological Survey 1 sheet none paper 1978 ground condition Hamilton (1978) This publication was used to plan traverses and help define geologic units. Hamilton, T.D. 1979 none document Open File Report OF 79-866 none U.S. Geological Survey 44 p. none paper 1979 ground condition Hamilton (1979) This publication was used to plan traverses and help define geologic units. Hamilton, T.D. 1982 none document Geological Society of America Bulletin v. 93 none Geological Society of America p. 700–716 none paper 1982 ground condition Hamilton (1982) This publication was used to plan traverses and help define geologic units. Hamilton, T.D. Porter, S.C. 1975 none document Quaternary Research v. 5 none none p. 471–497 none paper 1975 ground condition Hamilton and Porter (1975) This publication was used to plan traverses and help define geologic units. Data Compilation - Geologic information from relevant literature was used to plan traverses and help define geologic units. Brosgé and others (1979) Detterman and others (1958) Ellis and Calkin (1984) Hamilton (1978) Hamilton (1979) Hamilton (1982) Hamilton and Porter (1975) 1969-2001 Fieldwork- The data collected in this report is a summation of multiple summer field investigations, 1969-72, 1975-76, 1996-97, and 2001. Field notes and sediment samples from traverses, road cut investigations, and river exposures were collected throughout the quadrangle. Observations were recorded on 1:50,000 scale (nominal) color-infrared aerial photographs and 1:63,360 scale topographic base maps. Stations located using air photos and hand held GPS devices with location precision varying from +/-3 to 15 meters. Hamilton (1978) Hamilton (1979) Hamilton (1982) Hamilton and Porter (1975) 1969-2001 Laboratory data compilation- Laboratory analyses were performed on radiocarbon samples. Hamilton (1978) Hamilton (1979) Hamilton (1982) Hamilton and Porter (1975) 1969-2001 Geologic map compilation- The geologic map was compiled using field notes from fieldwork process step (above), analytical results from laboratory data compilation process step (above), and all known geologic data from previous work in quadrangle. Geologic map contacts were delineated by photo interpretation of 1:50,000-scale color-infrared aerial photographs onto clear acetate overlays. The contacts were transferred from the overlays onto paper USGS 1:63,360 topographic base maps using a zoom transfer scope, and the contacts were then digitized using ArcEdit. Line work was edited using ArcEdit, and polygon topology generated and unit designations assigned using ArcInfo and ArcEdit. ArcPlot was used to generate plot files using DGGS-standard symbology, and the Arc graphics files were converted into .eps files for export to Corel Draw for final cartographic assembly. Brosgé and others (1979) Detterman and others (1958) Ellis and Calkin (1984) Hamilton (1978) Hamilton (1979) Hamilton (1982) Hamilton and Porter (1975) 2001-2002 Universal Transverse Mercator 6 0.999600 -147.000000 0.000000 500000.000000 0.000000 coordinate pair 0.000064 0.000064 meters surfgeology_arc Universal Transverse Mercator 6 0.999600 -147.000000 0.000000 500000.000000 0.000000 coordinate pair 0.000064 0.000064 meters surfgeology_polygon Universal Transverse Mercator 6 0.999600 -147.000000 0.000000 500000.000000 0.000000 coordinate pair 0.000064 0.000064 meters stations_point Universal Transverse Mercator 6 0.999600 -147.000000 0.000000 500000.000000 0.000000 coordinate pair 0.000064 0.000064 meters symbols_point Universal Transverse Mercator 6 0.999600 -147.000000 0.000000 500000.000000 0.000000 coordinate pair 0.000064 0.000064 meters moraines_polygon Universal Transverse Mercator 6 0.999600 -147.000000 0.000000 500000.000000 0.000000 coordinate pair 0.000064 0.000064 meters symbols_arc North American Datum of 1927 Clarke 1866 6,378,206.4 294.98 surfgeology_arc table Object type is vector, there are 1215 rows associated with this entity, and the entity values refer to geologic unit contacts. Alaska Division of Geological & Geophysical Surveys surfgeology_arc SYMBOL Geologic contact classification Alaska Division of Geological & Geophysical Surveys 0 contact boundary for water-eroded drift Alaska Division of Geological & Geophysical Surveys 5 geologic unit contact location certain Alaska Division of Geological & Geophysical Surveys 6 geologic unit contact location approximate or inferred Alaska Division of Geological & Geophysical Surveys surfgeology_polygon table Object type is vector, there are 442 rows associated with this entity, and the entity values refer to geologic unit polygons Alaska Division of Geological & Geophysical Surveys surfgeology_polygon UNIT unit labels Alaska Division of Geological & Geophysical Surveys PR121_codeset.pdf Alaska Division of Geological & Geophysical Surveys http://www.dggs.dnr.state.ak.us/metadata/PR121_codeset.pdf stations_point table Object type is point, there are 14 rows associated with this entity, and the entity values refer to radiocarbon sample locations Alaska Division of Geological & Geophysical Surveys stations_point STATION radiocarbon sample location label Alaska Division of Geological & Geophysical Surveys Attribute values do not follow a specific naming convention. symbols_point table Object type is point, there are 73 rows associated with this entity, and the entity values refer to label points of map symbols showing relative motion and/or orientation of geomorphic features. Alaska Division of Geological & Geophysical Surveys symbols_point SYMBOL type of map symbol Alaska Division of Geological & Geophysical Surveys 17 morainal crest Alaska Division of Geological & Geophysical Surveys 101 arrow symbol indicating the endpoint of a meltwater drainage channel Alaska Division of Geological & Geophysical Surveys 125 arrow symbol indicating the direction of glacial flow across topographic divide Alaska Division of Geological & Geophysical Surveys ANGLE This field contains the rotation angle data that corresponds with each symbol class contained in the "SYMBOL" field of this table. Rotation angles are measured arithmetically. A value of 0 corresponds to an arrow pointing due east. Alaska Division of Geological & Geophysical Surveys -180 335 degrees moraines_polygon table Object type is vector, there are 12 rows associated with this entity, and the entity values refer to location and extent of prominent end moraines. Alaska Division of Geological & Geophysical Surveys moraines_polygon symbols_arc table Object type is vector, there are 76 rows associated with this entity, and the entity values refer to morainal crests, meltwater drainage channels or direction of glacial flow across a topographic divide. Alaska Division of Geological & Geophysical Surveys symbols_arc CODE symbol type Alaska Division of Geological & Geophysical Surveys and others (see reference attribute information) 1 morainal crest or meltwater drainage channel Alaska Division of Geological & Geophysical Surveys 2 direction of glacial flow across a topographic divide Alaska Division of Geological & Geophysical Surveys State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Natural Resource Technician mailing and physical

3354 College Road

Fairbanks AK 99709-3707 USA 907-451-5020 None available. 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.dnr.state.ak.us) for the latest information on available data. Please contact us using the e-mail address provided above when possible. Professional Report 121 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 $15.00 (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=7191 ArcGIS Shapefile ESRI ArcGIS 9.x No compression applied http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=7191 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). The DGGS web site (http://www.dggs.dnr.state.ak.us/) has a list of electronic data available and an order form that can be printed. 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 20091105 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@dnr.state.ak.us Please contact us through the e-mail address above whenever possible. FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time none If the user has modified the data in any way the user is obligated to describe the types of modifications the user has 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.