Geology topics
Dolores M. Kulik
Publications and source records attributed to Dolores M. Kulik.
Map showing the potential for mineral deposits associated with Precambrian mafic and ultramafic rocks in the Blacktail and Henrys Lake Mountains and the Greenhorn and Ruby Ranges of southwestern Montana
In response to requests from the Bureau of Land Management (BLM) and the U.S. Forest Service (USFS), the U.S. Geological Survey (USGS) conducted a mineral resource assessment in the Dillon BLM Resource Area in Beaverhead and Madison Counties, southwestern Montana. These agencies use mineral resource data in creating and updating land-use management plans for federal lands for the reasonably foreseeable future. Mineral resources that have not been developed in the past may be developed in the future, based on changing commodity demands and market conditions. Therefore, federal land managers need geologic information on known mineral occurrences as well as on areas that are permissive for the occurrence of undiscovered mineral resources. This map was prepared to provide this type of geologic information for mineral deposits that can be associated with ultramafic rocks. Areas of exposed Precambrian ultramafic rocks are labeled with uppercase letters (A-F). Sources of geologic maps used to compile this map are shown on the smaller index map ("Index to Geologic Mapping"); lowercase letters (a-m) on the index map are keyed to the reference list.
Mineral resource assessment; Custer and Gallatin national forests, Montana
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Mineral resources of the Willow Creek and Skull Creek Wilderness Study Areas, Moffat County, Colorado
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Mineral resources of the Coal Canyon, Spruce Canyon, and Flume Canyon Wilderness Study Areas, Grand County, Utah
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Mineral resources of the McCullough Peaks Wilderness Study Area, Park County, Wyoming
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Mineral resources of the Buffalo Hump and Sand Dunes Addition Wilderness Study Areas, Sweetwater County, Wyoming
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Mineral resources of the Oregon Buttes Wilderness Study Area, Sweetwater County, Wyoming
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Mineral resources of the Bobcat Draw Badlands Wilderness Study Area, Big Horn and Washakie counties, Wyoming
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Mineral resources of the Honeycombs Wilderness Study Area, Washakie County, Wyoming
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Mineral resources of the Sweetwater Canyon Wilderness Study Area, Fremont County, Wyoming
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Mineral resources of the Sand Dunes Wilderness Study Area, Sweetwater County, Wyoming
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Mineral resources of the Honeycomb Buttes Wilderness Study Area, Fremont and Sweetwater counties, Wyoming
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Complete Bouguer gravity and aeromagnetic maps of the Rattlesnake Roadless Area, Missoula County, Montana
The Rattlesnake Roadless Area was identified by the U.S. Forest Service as a possible addition to the Wilderness System. This 120 square mile area is north of Missoula, Mont. (see index map); Rattlesnake Creek forms the major drainage to the south. The rocks in the study area consist mainly of the Helena Formation and the Missoula Group of the Belt Supergroup (Proterozoic Y). Rock units of less importance are diabase sills and dikes of probable Proterozoic Z age, Middle Cambrian rocks, and glacial deposits. Structurally, the study area consists of the Rattlesnake thrust system in the south part and a parautochthonous area broken by vertical faults in the north part.