Petrology and origin of Precambrian metamorphic rocks in the eastern Ruby Mountains southwestern Montana: M.S. Thesis University of Montana (Hardcover) (ISBN-13: 9781667123059)

Precambrian schists and gneisses are exposed in much of the Ruby Mountains of southwestern Montana. The major rock types include abundant quartz-feldspar gneiss, hornblende gneiss, amphibolite, quartzitic gneiss, and marble. Minor rock types important in the study area include anthophyllite gneiss, hornblende-pyroxene-plagioclase gneiss, quartz-hypersthene-garnet granulite, iron-formation, and hornblende-hypersthene granulite. These rocks form a concordant series folded into a broad, open antiform-synform pair in the study area. This volume is a revised edition containing the complete original text plus the addition of a number of appendices. These include all maps, data tables, field notes and petrographic descriptions. I have included a new structural analysis treating the area as a single domain with all 342 strike and dip measurements, and a structure cross-section cartoon and a suggested pre-metamorphic sedimentary section. These appendices allow the reader to assess the evaluation from original descriptions.

Author: Kevin J. Smith
ISBN-10: 166712305X
ISBN-13: 9781667123059
Publisher: Lulu.com
Language: English
Published: 05/01/2021
Pages: 242
Format: Hardcover
Weight: 1.09lbs
Size: 9.00h x 6.00w x 0.56d