anwr_arc boundary of the Arctic National Wildlife Refuge sagmat_polygon engineering geologic units
Pinney, D.S., 2000, Reconnaissance engineering-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska: Report of Investigation RI 2000-1D, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK.
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 0.000255
Ordinates (y-coordinates) are specified to the nearest 0.000255
Planar coordinates are specified in meters
The horizontal datum used is D_Clarke_1866.
The ellipsoid used is Clarke 1866.
The semi-major axis of the ellipsoid used is 6378206.400000.
The flattening of the ellipsoid used is 1/294.978698.
|BC||Medium-jointed, fine- to coarse-grained sedimentary carbonate rocks. Includes limestone, and dolostone.|
|BM||Medium-jointed, fine- to medium-grained quartzose sedimentary rocks. Includes quartzose sandstone and conglomerate, quartzite, and chert.|
|BO||Rocks of mixed lithology and very fine-grained sedimentary lithologies that are generally poorly suited for use as construction materials. Includes shale, siltstone, graywacke and argillite.|
|GM||Poorly- to moderately well-sorted clay, silt, sand, gravel, and diamicton of colluvial, fluvial and glacial origins. Includes angular, unsorted talus debris and chaotically deformed colluvium derived from landslides.|
|GS||Fluvial and glaciofluvial gravel, sand, and silt. Chiefly (estimated >80 percent) clean sand and gravel. Grain size, sorting and degree of stratification are variable. Permafrost may be present, especially in older deposits.|
|NA||Interpretation not available, region covered by a body of water (lake)|
|OR||Organic-rich silt and peat in bogs and thaw lake basins. Commonly frozen and ice-rich due to the excellent insulating properties of peat. Generally water-saturated. Chiefly organic materials. Estimated >50 percent peat, organic sand, or organic silt.|
|SM||Silt deposited primarily by wind and reworked by fluvial and colluvial processes. May be organic rich. Commonly frozen and ice-rich, especially on north-facing slopes. Chiefly fine materials. Estimated >80 percent silt, sand, and clay.|
|Range of values|
|Range of values|
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.
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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.
Ashley, G.M., Hamilton, T.D., and Reed, K.M., 1984, Epiguruk bluff—Chronology and regional correlations: Geological Society of America Abstracts with Programs v. 16, Geological Society of America, Boulder, CO, USA.
Detterman, R.L., 1953, Sagavanirktok–Anaktuvuk region, northern Alaska:.This is part of the following larger work.
Péwé, T.L. (ed.), Muller, E.H. (ed.), Karlstrom, T.N.V. (ed.), Krinsley, D.B. (ed.), Fernald, A.T. (ed.), Wahrhaftig, C. (ed.), Hopkins, D.M. (ed.), and Detterman, R.L. (ed.), 1953, Multiple glaciation in Alaska: Circular Circ. 289, U.S. Geological Survey, Washington, DC, USA.
Detterman, R.L., Bowsher, A.L., and Dutro, J.T., Jr., 1958, Glaciation on the Arctic Slope of the Brooks Range, northern Alaska: Journal of the Arctic Institute of North America v. 11, Arctic, Calgary, Alberta, Canada.
Hamilton, T.D., 1986, Late Cenozoic glaciation of the central Brooks Range:.This is part of the following larger work.
Hamilton, T.D. (ed.), Reed, K.M. (ed.), and Thorson, R.M. (ed.), 1986, Glaciation in Alaska: The geologic record: None None, Alaska Geological Society, Anchorage, AK, USA.
Hamilton, T.D., 1982, A late Pleistocene glacial chronology for the southern Brooks Range—Stratigraphic record and regional significance: Geological Society of America Bulletin Bulletin 93, U.S. Geological Survey, Reston, VA, USA.
Porter, S.C., Pierce, K.L., and Hamilton, T.D., 1983, Late Wisconsin mountain glaciation in the western United States:.This is part of the following larger work.
Porter, S.C., and Wright, H.E., Jr. (ed.), 1983, The Late Pleistocene: Late Quaternary Environments of the United States v. 1, University of Minnesota Press, Minneapolis, MN, USA.
Waythomas, C.F., 1991, Surficial geologic map of the Sagavanirktok B-1 Quadrangle, northeastern Brooks Range, Alaska: Public Data File PDF 91-21E, Alaska Division of Geological & Geophysical Surveys, Fairbanks, AK, USA.
Wagner, A.A., 1957, The use of the Unified Soil Classification System by the Bureau of Reclamation: Proceedings v. I, 4th International Conference on Soil Mechanics and Foundation Engineering, London, England.
Data sources used in this process:
Data sources used in this process:
Data sources used in this process:
Reifenstuhl, R.R., Mull, C.G., Harris, E.E., LePain, D.L., Pinney, D.S., and Wallace, W.K., 2000, Geological map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska: Report of Investigation RI 2000-1A, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK.
Reifenstuhl, R.R., Mull, C.G., Harris, E.E., LePain, D.L., Wallace, W.K., and Pinney, D.S., 2000, Interpretive bedrock geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska: Report of Investigation RI 2000-1B, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK.
Pinney, D.S., 2000, Reconnaissance surficial-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska: Report of Investigation RI 2000-1C, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK.
Location data for geologic point coverages were entered manually from GPS units into a spreadsheet. Data for surficial and materials 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.
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.
This dataset includes coverages that contain information about engineering-geologic units, and field sample locations at 1:63,360 scale.
Topology is present on appropriate polygon and line coverages; others are point coverages.
Are there legal restrictions on access or use of the data?
- 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.
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Report of Investigation 2000-1D
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