| Publication |
M 71 |
| Citation |
Schwartz, R.K, Schwartz, T.M., and Elliott, C.G., 2026, Paleogene landscape and basin evolution in the Missouri River Headwater region of the Basin and Range Province in southwestern Montana: Implications for Paleogene extensional tectonic models and magmatism: Montana Bureau of Mines and Geology Memoir 71, 119 p.
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| DOI |
https://doi.org/10.59691/XZSD6846
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| Price |
$ 20.00
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| Document Version |
Final
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| Document Status |
Print on Demand
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| Description |
The publication presents integrated facies, paleocurrent, compositional, and detrital zircon data for Paleogene strata in Tertiary basins west of the Highland Mountains (Deer Lodge, Deep Creek, northern Big Hole, Divide, and Melrose Basins) in order to address paleogeography, provenance, sediment dispersal, basin evolution, and tectonism.
In addition, entire age distributions for granitic plutons in the study area are presented in order to make highly effective comparisons with detrital zircon data and decipher source-to-basin history.
Results include new insight into long-term tectonic evolution of the Anaconda-Flint Creek uplift and detachment complex, age of pluton emplacement and age modification, and origin of the intermontane basins.
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| Subject(s) |
PALEOGENE, INTERMONTANE BASIN, FOLD-THRUST BELT, BATHOLITH AGE, TWO-MICA GRANITE, ANACONDA METAMORPHIC CORE COMPLEX, ANACONDA DETACHMENT COMPLEX, MISSOURI RIVER HEADWATER
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| Geographic Area/Counties |
BEAVERHEAD, DEER LODGE, GRANITE, JEFFERSON, LEWIS AND CLARK, POWELL, SILVER BOW
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