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
Description
Mineral-resources geologists from the Alaska Division of Geological & Geophysical Surveys (DGGS) carried out a helicopter-supported geological and geochemical resource assessment project in the Gulkana, Healy, Mount Hayes, and Talkeetna Mountains quadrangles from July 29 through August 16, 2013. The objectives of this assessment were to improve the publicly-available geological, geophysical, and geochemical data in the area of known occurrences in the Mount Hayes Quadrangle, and to extend this coverage and any gained insight westward into the less-explored extension of the Wrangellia terrane. This program of stream-sediment, pan-concentrate, and rock sampling was conducted as part of the State's Strategic Minerals Assessment project, an initiative designed to evaluate Alaska's potential for rare-earth elements, PGEs, and other similarly supply-challenged resources. Highlights of this project include identification, sampling, and characterization of previously unmapped mafic to ultramafic intrusions and Nikolai Greenstone, modern geochemical characterizations of Ni-Cu-Co-PGE, skarn, vein, and basalt-hosted Cu mineralization, and documentation of regional-scale patterns in PGE enrichment across western Wrangellia. The analytical data tables associated with this report are being released in digital format as comma-delimited text (CSV) files.
Resources
Name
Format
Description
Link
0
http://dx.doi.org/10.14509/27022
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http://dx.doi.org/10.14509/27181
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CSDGM IMPORT ERROR: No digtinfo/formcont
http://dx.doi.org/10.14509/27181
Tags
paleozoic
platinum group elements
greenstone
mesozoic
amphitheater mountains
stream sediments
cretaceous
ultramafic
tetelna complex
talkeetna mountains
permian
healy quadrangle
amphitheater group
talkeetna mountains quadrangle
jurassic
geochemistry
gold
geochemical data
copper
trace elements
mount hayes quadrangle
geochemical surveys
pan concentrates
silver
wrangellia terrane
nikolai greenstone
rare earth elements
pennsylvanian
strategic and critical minerals assessment project