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.
| Autorius: | Kevin J Smith |
| Leidėjas: | Lulu.com |
| Išleidimo metai: | 2021 |
| Knygos puslapių skaičius: | 242 |
| ISBN-10: | 166712305X |
| ISBN-13: | 9781667123059 |
| Formatas: | Knyga kietu viršeliu |
| Kalba: | Anglų |
| Žanras: | Geology, geomorphology and the lithosphere |
Parašykite atsiliepimą apie „Petrology and origin of Precambrian metamorphic rocks in the eastern Ruby Mountains southwestern Montana: M.S. Thesis University of Montana“
