Geologic map of the McGrath D-6 Quadrangle, Alaska
Description
Geologic map of the McGrath D-6 Quadrangle, Alaska, Professional Report 79, provides 1:63,360-scale geologic mapping of the McGrath D-6 Quadrangle, which lies on the eastern edge of the Kuskokwim Mountains, a maturely dissected upland of accordant rounded ridges and broad lowlands. Two highlands, the Candle Hills and Takotna Mountain, are surrounded by sediment-filled troughs of the Takotna, Tatalina, and Kuskokwim River valleys. Elevations range from 300 to 2,600 ft. This report is the result of 40 man-days of reconnaissance geologic mapping in 1977, 1978, and 1982. Bedrock exposures were mapped on foot and by boat. Four-fifths of the quadrangle is covered by Quaternary deposits, which have been subdivided on the basis of a photo-geologic reconnaissance and limited field checking. The report also includes detailed geologic, structural, stratigraphic, and geochronologic data. The complete report, geodatabase, and ESRI fonts and style files are available from the DGGS website: http://doi.org/10.14509/2253.
Resources
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geologic map |
https://doi.org/10.14509/2253 |
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https://doi.org/10.14509/2253 |
Tags
- dike
- tailings
- takotna river
- pleistocene
- trace metals
- intrusive
- harrell island
- gems db l3 compliant
- dunes
- roundabout mountain
- geochronology
- tatalina river
- kuskokwim river
- cretaceous
- katlitna river
- mcgrath mining district
- major oxides
- camp creek
- gems db v1pt1
- holocene
- candle creek
- generalized
- bedrock
- peat
- geology
- bedrock geology
- sedimentary rocks
- candle hills
- surficial
- terrace alluvium
- geologic map
- silt
- permafrost and periglacial
- monazite
- geochemistry
- unconsolidated deposits
- wilson lake
- cash creek
- floodplain alluvium
- cipw norms
- rex creek
- age dates
- mcgrath
- metamorphic rocks
- volcanic rocks
- hornfels
- carl creek