Preliminary petrographic, chemical, and age data on some intrusive andassociated contact metamorphic rocks, Pioneer Mountains, southwesternMontana
Zen, E-an; Marvin, R F; Mehnert, H H (1975) Preliminary petrographic, chemical, and age data on some intrusive andassociated contact metamorphic rocks, Pioneer Mountains, southwesternMontana. Geological Society of America Bulletin, vol.86, no.3, pp.367-370,1975
| Authors | Zen, E-an; Marvin, R F; Mehnert, H H |
|---|---|
| Year | 1975 |
| Title | Preliminary petrographic, chemical, and age data on some intrusive andassociated contact metamorphic rocks, Pioneer Mountains, southwesternMontana |
| Source | Geological Society of America Bulletin, vol.86, no.3, pp.367-370,1975 |
| ISSN | 0016-7606 |
| GeoRef | 1975-020308 |
| Keywords | absolute age; age; batholiths; Beaverhead County Montana; biotite;Boulder Batholith; Cambrian; chemical composition; contact;Cretaceous; data; dates; diorites; granites; granodiorites; igneousrocks; intrusions; K/Ar; Mesozoic; metamorphic rocks; metamorphism;mica group; mineral composition; Montana; Paleozoic; petrology;Pioneer Batholith; Pioneer Mountains; plutonic; plutonic rocks; quartzdiorites; sheet silicates; silicates; Silver Hill Formation;southwest; United States; upper Mesozoic |
| DOI | 10.1130/0016-7606(1975)86<367:PPCAAD>2.0.CO;2 |