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Distribution and occurrence of rare earths in the thorium veins on Hall Mountain, Idaho

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Mortimer H. Staatz, Van E. Shaw, and James S. Wahlberg, 1974, Distribution and occurrence of rare earths in the thorium veins on Hall Mountain, Idaho: Journal of Research of the U.S. Geological Survey, v. 2, iss. 6.

Summary

Rare earths, although equal to or more abundant than thorium in many thorium veins, are much less abundant than thorium in the veins on Hall Mountain, Idaho. Total rare-earth content of these veins ranges from 0.00111 to 0.197 percent in 12 samples from 10 veins; the thoria (ThO2 ) content, from 0.011 to 5.84 percent. The rare-earth oxide to thoria ratios range from 0.0019 to 3.22. Only two samples contained more rare earths than thorium, and these two samples came from veins related to a fault near the base of a thick sill; the others came from veins near the top of the same sill. The relative amounts of the individual lanthanides are remarkably similar in the Hall Mountain veins, although cerium, gadolinium, or dysprosium are the [...]

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Type Scheme Key
local-index unknown 70156511
local-pk unknown 70156511
series unknown Journal of Research of the U.S. Geological Survey

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journalJournal of Research of the U.S. Geological Survey
parts
typevolume
value2
typeissue
value6
typePublication Place
valueReston, VA
languageEnglish
citationTypeArticle

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