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The thrust belt in Southwest Montana and east-central Idaho

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The thrust belt in Southwest Montana and east-central Idaho; 1984; PP; 1278; Ruppel, Edward T.; Lopez, David A.

Summary

The leading edge of the Cordilleran fold and thrust in southwest Montana appears to be a continuation of the edge of the Wyoming thrust belt, projected northward beneath the Snake River Plain. Trces of the thrust faults that form the leading edge of the thrust belts are mostly concealed, but stratigraphic and structural evidence suggests that the belt enters Montana near the middle of the Centennial Mountains, continues west along the Red Rock River valley, and swings north into the Highland Mountains near Butte. The thrust belt in southwest Montana and east-central Idaho includes at least two major plates -- the Medicine Lodge and Grasshopper thrust plates -- each of which contains a distinctive sequence of rocks, different in facies [...]

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Type Scheme Key
local-index unknown pp1278
local-pk unknown 38585
series unknown Professional Paper

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citationTypeReport
journalProfessional Paper
languageEnglish
parts
typePublication Place
valueWashington, D.C.

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