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Your search keyword '"Twelker, Evan"' showing total 5 results
Start Over Author "Twelker, Evan" Language english Journal preliminary interpretive report series
5 results on '"Twelker, Evan"'

2. PRELIMINARY REPORT ON MINERAL OCCURRENCES IN THE TOK RIVER AREA, ALASKA.

Author

Twelker, Evan, Freeman, Larry K., Sicard, Karri R., and Busk, Alexandra C.

Subjects
*GEOPHYSICAL surveys, *RIVERS, *MINERAL processing, *MINES & mineral resources
Abstract

The article presents results of a preliminary report conducted by the State of Alaska, Department of Natural Resources, which explores the geological and geophysical survey on mineral occurrences at the Tok River Area in Alaska. A brief overview on the geophysical structure of the area is mentioned. It also notes on the Kennecott Exploration on surface exploration and drilling in 1997 and 1998.

Published
2016

3. EXPLANATION OF MAP UNITS: Geologic map of the Talkeetna Mountains C-4 Quadrangle and adjoining areas, central Alaska (1:50,000 scale).

Author

Twelker, Evan, Hubbard, Trent D., Wypych, Alicja, Sicard, Karri R., Newberry, Rainer J., Reioux, David A., Freeman, Lawrence K., and Lande, Lauren L.

Subjects
*MAPS -- Symbols, *ALLUVIUM, *RHYOLITE, *SANDSTONE, *SILICA
Abstract

The article offers information on the symbols used in map units. Topics discussed include use of Qa to describe undifferentiated floodplain alluvial deposits, use of Trrp to show high silica rhyolite, use of Kg indicates granite rocks and, use of KJmf to show metamorphosed and interbedded sandstone in the area.

Published
2015

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