kavik_Q_units polygons representing geologic units kavik_Q_structure line symbols representing structures kavik_Q_contacts line symbols representing contacts between geologic units
Carson, E.C., 2009, Surficial-geologic map of the Kavik River area, west-central Mount Michelson Quadrangle, northeastern Brooks Range, Alaska: Report of Investigation RI 2009-3, Alaska Division of Geological & Gephysical Surveys, Fairbanks, Alaska.
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 0.00001
Ordinates (y-coordinates) are specified to the nearest 0.00001
Planar coordinates are specified in meters
The horizontal datum used is North American Datum of 1927.
The ellipsoid used is Clarke 1866.
The semi-major axis of the ellipsoid used is 6378137.
The flattening of the ellipsoid used is 1/298.25722210088.
| Value | Definition |
|---|---|
| Qa | modern stream alluvium |
| Qac | abandoned channel deposits |
| Qaf | alluvial fan deposits |
| Qat | alluvial terrace deposits |
| Qcc | coarse-grained colluvium |
| Qcf | fine-grained colluvium |
| Qls | landslide deposits |
| Qlt | thaw lake deposits |
| Qdi2 | drift of Itkillik II age |
| Qdi1 | drift of Itkillik I age |
| Qds | drift of Sagavanirktok River age |
| Qdos | outwash of Sagavanirktok River age |
| Qda | drift of Anaktuvuk River age |
| Qdu | undifferentiated drift of Sagavanirktok and Anaktuvuk River age |
| Qkt | kame terrace |
| Qsu | silt, undifferentiated |
| Qts | thawed silt deposits |
| Value | Definition |
|---|---|
| ridge_crest | ridge crest |
| ridge_crest_queried | ridge crest, position queried |
| scarp | fault scarp |
| Value | Definition |
|---|---|
| inferred | inferred contact |
The author would like to thank the staff of the Alaska Division of Geological & Geophysical Surveys, including P.R. Delaney, R.J. Gillis, A.M. Loveland, R.R. Reifenstuhl, R.F. Swenson, M.A. Wartes; and W.K. Wallace of the University of Alaska Fairbanks. Technical Review by: D.S.P. Stevens (ADGGS) and D.F. Waythomas (U.S. Geological Survey); Digital Cartography by: A.M. Loveland (ADDGS); Edited by: P.K. Davis and P.R. Delaney (ADGGS)
This map is part of the Alaska Division of Geological and Geophysical Survey's Kavik River STATEMAP project in the Mount Michelson 1:250:000 Quadrangle. It provides a detailed overview of the surficial geology in the STATEMAP project area and will serve as a stand-alone publication (this publication). The resultant data will also be integrated into a subsequently released bedrock geologic map.
Hamilton, T.D., 2003, Surficial geology of the Dalton Highway (Itkillik-Sagavanirktok Rivers) area, southern Arctic Foothills, Alaska: Professional Paper PR 121, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska.
Pinney, D.S., 2000, Reconnaissance surficial-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska: Report of Investigation RI 2000-1C, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska.
Waythomas, C.F., 1991, Surficial geologic maps of the Sagavanirktok A-1, A-2, and B-2 Quadrangles, northeastern Brooks Range, Alaska: Public Data File PDF 91-21A, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska.
Data sources used in this process:
The attributes of this geospatial data set consist of text identifiers and numeric codes that indicate the identity of the geologic unit or type of geologic feature and determine how each feature is symbolized.To check attribute accuracy, a color check plot was visually compared to the geologist's original 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.
Contact locations and geologic unit distinctions where determined in the field using raster images of topographic base maps, aerial photos and handheld GPS units. Sources of possible error include the manual-visual proceedure used to resolve scale differences between the aerial photos and the topographic base maps and errors associated with digitization process. Inclusive of such errors, contacts are thought to be within 20-30 m of where they are mapped, with the exception of contacts which were specifically designated as "inferred."
The data set includes contact locations as observed in the field and distinguishable at a scale of 1:63,360.
Polygon topology is present and clean on appropriate coverages.
Are there legal restrictions on access or use of the data?
- Access_Constraints:
- This report, map, and/or data set are available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys
- Use_Constraints:
- Any hardcopies 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.
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Report of Investigations 2009-3
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(907) 451-5020 (voice)
(907) 451-5000 (FAX)
dggspubs@alaska.gov