Granitic formations in the east-central Sierra Nevada near Bishop, California
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Abstract
This report establishes lithologic units among the granitic rocks of the east-central Sierra Nevada near Bishop, California. In this area the Sierra Nevada batholith is composed chiefly of quartz-bearing plutonic rocks ranging in composition from quartz diorite to alaskite but includes scattered small masses of darker and older plutonic rocks and remnants of metamorphosed sedimentary and volcanic rocks. The granitic rocks are in discrete plutons, either in sharp contact with one another or separated by thin septa of metamorphic or mafic igneous rock or by late aplitic dikes. The granitic rocks are grouped into lithologic units on the basis of composition, texture, and intrusive relations. The units include six new formations, three informal units made up of the rocks in several plutons, and four informal units that include the rocks in single plutons. The new formations are the Inconsolable Granodiorite, Tinemaha Granodiorite, Wheeler Crest Quartz Monzonite, Round Valley Peak Granodiorite, Lamarck Granodiorite, and Tungsten Hills Quartz Monzonite.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Granitic formations in the east-central Sierra Nevada near Bishop, California |
| Series title | Bulletin of the Geological Society of America |
| DOI | 10.1130/0016-7606(1961)72[1521:GFITES]2.0.CO;2 |
| Volume | 72 |
| Issue | 10 |
| Year Published | 1961 |
| Language | English |
| Publisher | Geological Society of America |
| Description | 17 p. |
| First page | 1521 |
| Last page | 1537 |
| Country | United States |
| State | California |
| City | Bishop |
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