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The Contact Zone of Sheep Creek, Little Belt Mountains, Montana

Published online by Cambridge University Press:  01 May 2009

J. H. Taylor
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Extract

During the recent construction of a new highway linking Glacier and Yellowstone National Parks a number of deep cuttings have had to be made in the Little Belt Mountains. Some nine miles south-south-east of the once prosperous mining town of Neihart the road crosses the divide at King's Hill (7,400 feet O.D.) and, passing from Cascade County into Meagher County, starts a long and gradual descent into Sheep Creek. Along the side of the creek for a distance of several miles a series of sections reveal that the country rock is here cut by igneous intrusions with interesting contact-metamorphic effects. The mineralogy of the contact rocks has already been described by the author (l): the present communication describes the field relations and considers some problems of paragenesis.

Type
Original Articles
Information
Geological Magazine , Volume 75 , Issue 5 , May 1938 , pp. 219 - 226
Copyright
Copyright © Cambridge University Press 1938

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References

REFERENCES

(1)Taylor, J. H., “A Contact Metamorphic Zone from the Little Belt Mountains, Montana,” Amer. Min., xx, 1935, 120–128.Google Scholar
(2)Hess, F. L., “Tactite, the product of contact metamorphism,” Amer. Journ. Sci., xlviii, 1919, 377–8.Google Scholar
(3)Hess, F. L., and Larsen, E. S., “Contact metamorphic tungsten deposits of the United States,” U.S.G.S. Bull, 725–D, 1921, 248–257.Google Scholar
(4)Weed, W. H., and Pirsson, L. V., “Geology of the Little Belt Mountains, Montana,” 20th Ann. Sep. U.S.G.S., pt. 3, 1898–1899, 308–9, 536–541.Google Scholar
(5)Harker, A., Metamorphism. London, 1932, 134–5.Google Scholar