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Thin section of monzonite porphyry from sill by Deer Creek south of Pine Spring, Mount Pennell. Garfield County, Utah. 1939

Dates

Date Taken
1939

Summary

Thin section of monzonite porphyry from sill by Deer Creek south of Pine Spring, Mount Pennell; the large dark phenocrysts are hornblende. The remains of a basal section of aegirine-augite can be seen in the left center. The upper part of the section is fine-grained hornblendic inclusion. X 6. Garfield County, Utah. 1939. Figure 82-A, in U.S.Geological Survey Professional paper 228. 1953.

Contacts

Data Owner :
U.S. Geological Survey
Photographer :
Hunt, Charles Butler

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Identifiers

Type Scheme Key
name photoLibrary hcb00851
number photoLibrary 17260
batch photoLibrary btch300
number_in_book photoLibrary 851

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