Polished specimen of a hornblendic inclusion in diorite porphyry; specimen from peak of Mount Ellen. Garfield County, Utah. 1939.
Dates
Date Taken
1939
Summary
Polished specimen of a hornblendic inclusion in diorite porphyry; specimen from peak of Mount Ellen [Peak], both the gneissic texture and veins in the inclusions are truncated by the enclosing porphyry. Garfield County, Utah. 1939. Figure 79-A, in U.S.Geological Survey Professional paper 228. 1953.
Summary
Polished specimen of a hornblendic inclusion in diorite porphyry; specimen from peak of Mount Ellen [Peak], both the gneissic texture and veins in the inclusions are truncated by the enclosing porphyry. Garfield County, Utah. 1939. Figure 79-A, in U.S.Geological Survey Professional paper 228. 1953.
This USGS product is considered to be in the U.S. public domain. For further information on the USGS Information Policies and Instructions, refer to the Copyrights and Credits section on this web page: http://www.usgs.gov/laws/info_policies.html