Fleecer Mountain Area, Silver Bow Co., Montana, USA
| Latitude & Longitude (WGS84): | 45° 50' 33'' North , 112° 48' 33'' West |
|---|---|
| Latitude & Longitude (decimal): | 45.8425, -112.809166667 |
REF:Deposit:: MONT IND MINERALS, MINOBRAS, 1975, P. 63.
Deposit:: LOWELL,W.R., 1955, IGNEOUS INTRUSIONS AND METAMORPHISM IN
Deposit:: SOME PHOSPHATIC ROCKS IN SW MONTANA: ECON. GEOL., V. 50, NO.
Deposit:: 7, P. 726
Commodities (Major) - Phosphorus-Phosphates; (Trace) - Uranium, Fluorine-Fluorite
Development Status: Unknown
Mineral List
Regional Geology
This information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This data will improve over time as more accurate maps and data sets are added.
| Cretaceous66 - 145 Ma | Cretaceous plutonic rocks Plutonic rocks Boulder Batholith Deep-seated to high-level intrusions are included. Many charnockites, anorthosites, and large ophiolites, classified as plutons, are distinguished in the database using the SIGNIF item. Ophiolites were classified as plutons, even where remnants may be extrusive and/or sedimentary. |
| Cretaceous66 - 145 Ma | Cretaceous sedimentary Sedimentary |
| Early Cretaceous100.5 - 145 Ma | Kootenai Formation Major:: {(limestone)| (calcareous sandstone, carbonaceous calcareous mudstone, carbonaceous calcareous siltstone)}; Minor:: {(mudstone, siltstone, sandstone)| (limestone, conglomeratic sandstone)} |
| Permian252.17 - 298.9 Ma | Permian, undifferentiated Major:: {fine-grained mixed clastic},Minor:: {carbonate},Incidental:: {chert, phosphorite, black shale, oil shale} Permian, undifferentiated: chert, sandstone, limestone, quartzite, and shale with rock phosphate mostly at base; mainly Phosphoria formation |
References for regional geology:
Data provided by Macrostrat.org
Garrity, C.P., and Soller, D.R.,. Database of the Geologic Map of North America: adapted from the map by J.C. Reed, Jr. and others (2005). U.S. Geological Survey Data Series 424 .
USGS compilers. State geologic map data. State Maps.
Geological Survey of Canada. Generalized geological map of the world and linked databases. doi:10.4095/195142. Open File 2915d.
Zientek, M.L., P.D. Derkey, R.J. Miller, J.D. Causet et al. Spatial Databases for the Geology of the Northern Rocky Mountains - Idaho, Montana, and Washington. U.S. Geological Survey Open-File Report 2005-1235 Version 1.0.
