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Your search keyword '"Twelker, Evan"' showing total 5 results
Start Over Author "Twelker, Evan" Topic geological surveys Language english Journal raw data file (alaska division of geological & geophysical surveys)
5 results on '"Twelker, Evan"'

3. MAJOR-OXIDE, MINOR-OXIDE, AND TRACE-ELEMENT GEOCHEMICAL DATA FROM ROCKS IN THE STYX RIVER AREA, LIME HILLS C-1 QUADRANGLE, LIME HILLS, MCGRATH, TALKEETNA, AND TYONEK QUADRANGLES, ALASKA.

Author

Sicard, Karri R., Wypych, Alicja, Twelker, Evan, Bachmann, Erik N., Freeman, Larry K., Newberry, Rainer J., Reioux, David A., Tuzzolino, Amy L., and Wright, Thomas C.

Subjects
GEOLOGICAL surveys, RARE earth metals, PRECIOUS metals, IGNEOUS intrusions
Abstract

The article discusses a survey for rare-earth elements and precious minerals conducted by the Alaska Division of Geological & Geophysical Surveys (DGGS) along Styx River in the Lime Hills C-1 Quadrangle. Plutonic complexes in the area are noted. Collection, preparation and analysis of rock samples are described.

Published
2014

4. MAJOR-OXIDE, MINOR-OXIDE, AND TRACE-ELEMENT GEOCHEMICAL DATA FROM ROCKS AND STREAM SEDIMENTS IN THE WRANGELLIA MINERAL ASSESSMENT AREA, GULKANA, HEALY, MOUNT HAYES, AND TALKEETNA MOUNTAINS QUADRANGLES, ALASKA.

Author

Twelker, Evan, Bachmann, Erik N., Freeman, Larry K., Newberry, Rainer J., Reioux, David A., Sicard, Karri R., Tuzzolino, Amy L., Wright, Thomas C., and Wypych, Alicja

Subjects
*GEOCHEMICAL prospecting, *MAFIC rocks, *GEOLOGICAL surveys, *PROSPECTING
Abstract

The article discusses the geochemical exploration of mafic intrusions in the Wrangellia terrane and the Talkeetna and Mount Hayes Quadrangles in Alaska. Collection and preparation protocols followed by the Division of Geological & Geophysical Surveys (DGGS) are indicated. Analytical procedures for each type of sample is presented.

Published
2014

5. FIELD STATION LOCATIONS AND MAGNETIC SUSCEPTIBILITY DATA COLLECTED IN 2019 FOR THE EASTERN TANACROSS PROJECT, TANACROSS AND NABESNA QUADRANGLES, ALASKA.

Author

Naibert, Travis J., Twelker, Evan, Wypych, Alicja, Athey, Jennifer E., Newberry, Rainer J., Lopez, Julian A., Regan, Sean P., Sicard, Karri R., Wildland, Alec D., and Wyatt, W. Chris

Subjects
*MAGNETIC susceptibility, *GEOLOGICAL surveys, *GEOLOGICAL mapping, *GEOPHYSICAL surveys, *MINES & mineral resources, *HYDROGEN as fuel
Published
2020

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