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Wet Mountains, Colorado, thorium investigations, 1952-1954

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Wet Mountains, Colorado, thorium investigations, 1952-1954; 1954; TEI; 354; Christman, Robert Adam; Brock, M. R.; Pearson, R. C.; Singewald, Q. D.

Summary

A 22-square mile tract (McKinley Mountain Area) of pre-Cambrian rocks and veins containing thorium was mapped at the scale of 1:6,000. This tract lies on the west flank of the Wet Mountains, Custer and Fremont Counties, northeast of Westcliffe, Colo. The bedrock is a complexly interlayered sequence of gneisses of metasedimetary origin, migmatite and granitic gneisses that have been transected by an albite syenite stock and numerous northwest-trending dikes, veins, and fractures. Hornblende-plagioclase and biotite-quartz-plagioclase gneisses are the principal metasedimentary rocks; pyroxene-scapolite, garnet, sillimanite, and quartzite zones are locally present. The most prominent rock is a poorly foliated, microcline, alaskitic granite [...]

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Type Scheme Key
local-index unknown tei354
local-pk unknown 71398
series unknown Trace Elements Investigations

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citationTypeReport
edition-
journalTrace Elements Investigations
languageEnglish
parts
typePublication Place
valueReston, VA

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