Science and Products
Filter Total Items: 25
Preliminary geologic map of the White Sulphur Springs 30' x 60' Quadrangle, Montana
The geologic map of the White Sulphur Springs quadrangle, scale 1:100,000, was made as part of the Montana Investigations Project to provide new information on the stratigraphy, structure, and geologic history of the geologically complex area in west-central Montana. The quadrangle encompasses about 4,235 km2 (1,635 mi2), across part of the Smith River basin, the west end of the Little Belt Mount
Authors
Mitchell W. Reynolds, Theodore R. Brandt
Preliminary geologic map of the Townsend 30' x 60' quadrangle, Montana
The geologic map of the Townsend quadrangle, scale 1:100,000, was made as part of the Montana Investigations Project to provide new information on the stratigraphy, structure, and geologic history of this geologically complex area in west-central Montana. The quadrangle encompasses about 4,200 square km (1,640 square mi).
Authors
Mitchell W. Reynolds, Theodore R. Brandt
Structural termination of the Montana disturbed belt and its interaction with major structures of the continental autochthon
No abstract available.
Authors
Mitchell W. Reynolds
Stratigraphy and structural history of the eastern edge of the Helena salient, Montana
No abstract available.
Authors
Mitchell W. Reynolds
Laccoliths of the southwest part of the Little Belt Mountains; their relation to ancestral structures of the Central Montana Uplift
No abstract available.
Authors
Mitchell W. Reynolds
40Ar/39Ar and K-Ar geochronology and tectonic significance of the Upper Cretaceous Adel Mountain volcanics and spatially associated Tertiary igneous rocks, northwestern Montana
No abstract available.
Authors
Stephen S. Harlan, Lawrence W. Snee, Mitchell W. Reynolds, Harald H. Mehnert, R. G. Schmidt, Steve D. Sheriff, Anthony J. Irving
Hydrology of the Helena area bedrock, west-central Montana, 1993-98
The Generalized Bedrock Geologic Map of the Helena Area, West-Central Montana (plate 1 in the report) provides an intermediate-scale overview of bedrock in the Helena area. The geologic map has been compiled at a scale of 1:100,000 from the most widely available sources of geologic map information (see index to geologic mapping on pl. 1). That information has been updated by M.W. Reynolds for this
Authors
Joanna N. Thamke, Mitchell W. Reynolds
Toward digital geologic map standards: a progress report
Establishing modern scientific and technical standards for geologic maps and their derivative map products is vital to both producers and users of such maps as we move into an age of digital cartography. Application of earth-science data in complex geographic information systems, acceleration of geologic map production, and reduction of population costs require that national standards be developed
Authors
George E. Ulrech, Mitchell W. Reynolds, Richard B. Taylor
Analytical results and sample locality map of rock and stream-sediment samples from the Ferris Mountains Wilderness Study Area (WY-030-407), Carbon County, Wyoming
No abstract available.
Authors
D. E. Detra, Mitchell W. Reynolds, T. A. Roemer
Mineral resources of the Ferris Mountains Wilderness Study Area, Carbon County, Wyoming
No abstract available.
Authors
Mitchell W. Reynolds, John T. Neubert
GATES OF THE MOUNTAINS WILDERNESS AND ADDITIONS, MONTANA.
The Gates of the Mountains Wilderness and Additions, Montana, have little promise for the occurrence of metallic mineral or fossil fuel resources. This conclusion is based on detailed investigation of the geology and mineral and fossil fuel resources. Geologic structures of the area, although similar to potential petroleum-bearing structures in other parts of the Rocky Mountains overthrust belt, a
Authors
Mitchell W. Reynolds, Terry J. Close
MIDDLE FORK OF THE JUDITH RIVER WILDERNESS STUDY AREA, MONTANA.
The Middle Fork of the Judith River Wilderness Study Area in Montana has several prospects containing local small inferred resources and several exposed mineral occurrences bearing silver, lead, copper, and gold along its north and west edges with no identified resource potential. Geologic, geophysical, and geochemical studies, conducted to appraise the mineral resources of the study area, identif
Authors
Mitchell W. Reynolds, Michael Hamilton
Geologic map of the Strawberry Butte 7.5' quadrangle, Meagher County, Montana
The Strawberry Butte quadrangle, scale 1:24,000, is a legacy map of the U.S. Geological Survey, made as part of the Montana Investigations Project to provide information on the stratigraphy, structure, and geologic history of the area. The quadrangle encompasses an area of about 132 km2 (51 mi2) in the southwest part of the Little Belt Mountains and is about 26 km (17 mi) north of White Sulphur Sp
Geologic map of the Strawberry Butte 7.5’ quadrangle, Meagher County, Montana
The 7.5′ Strawberry Butte quadrangle in Meagher County, Montana near the southwest margin of the Little Belt Mountains, encompasses two sharply different geologic terranes. The northern three-quarters of the quadrangle are underlain mainly by Paleoproterozoic granite gneiss, across which Middle Cambrian sedimentary rocks rest unconformably. An ancestral valley of probable late Eocene age, eroded
Geologic map of the Canyon Ferry Dam 30' x 60' quadrangle, west-central Montana
No abstract available.
Geologic map of the Nelson quadrangle, Lewis and Clark County, Montana
The geologic map of the Nelson quadrangle, scale 1:24,000, was prepared as part of the Montana Investigations Project to provide new information on the stratigraphy, structure, and geologic history of an area in the geologically complex southern part of the Montana disturbed belt. In the Nelson area, rocks ranging in age from Middle Proterozoic through Cretaceous are exposed on three major thrust
Geologic map of the Hogback Mountain quadrangle, Lewis and Clark and Meagher Counties, Montana
The geologic map of the Hogback Mountain quadrangle, scale 1:24,000, was made as part of the Montana Investigations Project to provide new information on the stratigraphy, structure, and geologic history of an area in the geologically complex southern part of the Montana disturbed belt. In the Hogback Mountain area, rocks ranging in age from Middle Proterozoic through Cretaceous are strongly fold
Science and Products
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Filter Total Items: 25
Preliminary geologic map of the White Sulphur Springs 30' x 60' Quadrangle, Montana
The geologic map of the White Sulphur Springs quadrangle, scale 1:100,000, was made as part of the Montana Investigations Project to provide new information on the stratigraphy, structure, and geologic history of the geologically complex area in west-central Montana. The quadrangle encompasses about 4,235 km2 (1,635 mi2), across part of the Smith River basin, the west end of the Little Belt MountAuthorsMitchell W. Reynolds, Theodore R. BrandtPreliminary geologic map of the Townsend 30' x 60' quadrangle, Montana
The geologic map of the Townsend quadrangle, scale 1:100,000, was made as part of the Montana Investigations Project to provide new information on the stratigraphy, structure, and geologic history of this geologically complex area in west-central Montana. The quadrangle encompasses about 4,200 square km (1,640 square mi).AuthorsMitchell W. Reynolds, Theodore R. BrandtStructural termination of the Montana disturbed belt and its interaction with major structures of the continental autochthon
No abstract available.AuthorsMitchell W. ReynoldsStratigraphy and structural history of the eastern edge of the Helena salient, Montana
No abstract available.AuthorsMitchell W. ReynoldsLaccoliths of the southwest part of the Little Belt Mountains; their relation to ancestral structures of the Central Montana Uplift
No abstract available.AuthorsMitchell W. Reynolds40Ar/39Ar and K-Ar geochronology and tectonic significance of the Upper Cretaceous Adel Mountain volcanics and spatially associated Tertiary igneous rocks, northwestern Montana
No abstract available.AuthorsStephen S. Harlan, Lawrence W. Snee, Mitchell W. Reynolds, Harald H. Mehnert, R. G. Schmidt, Steve D. Sheriff, Anthony J. IrvingHydrology of the Helena area bedrock, west-central Montana, 1993-98
The Generalized Bedrock Geologic Map of the Helena Area, West-Central Montana (plate 1 in the report) provides an intermediate-scale overview of bedrock in the Helena area. The geologic map has been compiled at a scale of 1:100,000 from the most widely available sources of geologic map information (see index to geologic mapping on pl. 1). That information has been updated by M.W. Reynolds for thisAuthorsJoanna N. Thamke, Mitchell W. ReynoldsToward digital geologic map standards: a progress report
Establishing modern scientific and technical standards for geologic maps and their derivative map products is vital to both producers and users of such maps as we move into an age of digital cartography. Application of earth-science data in complex geographic information systems, acceleration of geologic map production, and reduction of population costs require that national standards be developedAuthorsGeorge E. Ulrech, Mitchell W. Reynolds, Richard B. TaylorAnalytical results and sample locality map of rock and stream-sediment samples from the Ferris Mountains Wilderness Study Area (WY-030-407), Carbon County, Wyoming
No abstract available.AuthorsD. E. Detra, Mitchell W. Reynolds, T. A. RoemerMineral resources of the Ferris Mountains Wilderness Study Area, Carbon County, Wyoming
No abstract available.AuthorsMitchell W. Reynolds, John T. NeubertGATES OF THE MOUNTAINS WILDERNESS AND ADDITIONS, MONTANA.
The Gates of the Mountains Wilderness and Additions, Montana, have little promise for the occurrence of metallic mineral or fossil fuel resources. This conclusion is based on detailed investigation of the geology and mineral and fossil fuel resources. Geologic structures of the area, although similar to potential petroleum-bearing structures in other parts of the Rocky Mountains overthrust belt, aAuthorsMitchell W. Reynolds, Terry J. CloseMIDDLE FORK OF THE JUDITH RIVER WILDERNESS STUDY AREA, MONTANA.
The Middle Fork of the Judith River Wilderness Study Area in Montana has several prospects containing local small inferred resources and several exposed mineral occurrences bearing silver, lead, copper, and gold along its north and west edges with no identified resource potential. Geologic, geophysical, and geochemical studies, conducted to appraise the mineral resources of the study area, identifAuthorsMitchell W. Reynolds, Michael Hamilton - Data
Geologic map of the Strawberry Butte 7.5' quadrangle, Meagher County, Montana
The Strawberry Butte quadrangle, scale 1:24,000, is a legacy map of the U.S. Geological Survey, made as part of the Montana Investigations Project to provide information on the stratigraphy, structure, and geologic history of the area. The quadrangle encompasses an area of about 132 km2 (51 mi2) in the southwest part of the Little Belt Mountains and is about 26 km (17 mi) north of White Sulphur Sp - Maps
Geologic map of the Strawberry Butte 7.5’ quadrangle, Meagher County, Montana
The 7.5′ Strawberry Butte quadrangle in Meagher County, Montana near the southwest margin of the Little Belt Mountains, encompasses two sharply different geologic terranes. The northern three-quarters of the quadrangle are underlain mainly by Paleoproterozoic granite gneiss, across which Middle Cambrian sedimentary rocks rest unconformably. An ancestral valley of probable late Eocene age, erodedGeologic map of the Canyon Ferry Dam 30' x 60' quadrangle, west-central Montana
No abstract available.Geologic map of the Nelson quadrangle, Lewis and Clark County, Montana
The geologic map of the Nelson quadrangle, scale 1:24,000, was prepared as part of the Montana Investigations Project to provide new information on the stratigraphy, structure, and geologic history of an area in the geologically complex southern part of the Montana disturbed belt. In the Nelson area, rocks ranging in age from Middle Proterozoic through Cretaceous are exposed on three major thrustGeologic map of the Hogback Mountain quadrangle, Lewis and Clark and Meagher Counties, Montana
The geologic map of the Hogback Mountain quadrangle, scale 1:24,000, was made as part of the Montana Investigations Project to provide new information on the stratigraphy, structure, and geologic history of an area in the geologically complex southern part of the Montana disturbed belt. In the Hogback Mountain area, rocks ranging in age from Middle Proterozoic through Cretaceous are strongly fold