|H||Includes 'Permian phophatic sandstone, mudstone, and chert of southeastern Idaho' (Phosphoria, Shedhord, and Park City formations) in Idaho; 'Permina undivided, mainly Phosphoria Formation' in Montana; and 'Permian Phosphoria Formation and related rocks of the Shedhord Sandsonte and the Park City Formation' in Wyoming.|
|M||Includes 'Park City Formation' and 'Goose Egg Formation' (which contains phosphate according to USGS Circular 297) in Wyoming; and 'Phosphoria and Park City formations' in Utah.|
|P||Permissive for the presence of phosphate mineral resources|
|F||Favorable for the presence of phosphate mineral resources|
|fg||fair to good favorable area - gravel, sand, and silt; relatively well sorted, unweathered, and unconsolidated|
|fp||Fair to poor permissive area - silt, sand, and gravel; poorly sorted, weathered, and/or partly consolidated|
|san||Permissive area - sand only; dune or wind blown sand|
|(blank) or state abbreviations (wa, id, mt, wy, ut, nv, ca, or)||No potential for significant sand or gravel|
|in||within 250 meters of stream mapped at 1:2,000,000|
|(blank)||More than 250 meters from stream|
|in||Populated area; no significant sand or gravel development is likely|
|buf||Area outside, but within 15 km of city or town with population greater than 20,000|
|(blank)||More than 15 km from city or town with population greater than 20,000|
This product would not exist without the input of the many geoscientists whose work was essential to making both state geologic maps and mineral resources databases. This effort would not be possible without those past products and others from the following agencies: the US Geological Survey, the California Division of Mines and Geology, the Idaho Bureau of Mines and Geology, the Montana Bureau of Mines and Geology, the Nevada Bureau of Mines and Geology, the Oregon Department of Geology and Mineral Industries, the Utah Geological and Mineral Survey, the Geological Survey of Wyoming, and the Washington State Department of Natural Resources. We particularly acknowledge Patrick Geehan, the Bureau of Land Management project coordinator for the Interior Columbia River Basin Ecosystem Management Project, for recognizing the importance of geology to ecosystem management and for supplying funds to digitize the Washington, Idaho, and Montana state geologic maps. We also acknowledge James D. Bliss for his helpful review of this report.
The goal of the ICBEMP management strategy is to provide management tools to sustain or restore ecosystem integrity and produce desired condistions, uses, products, values, and services over the long term. The intent of the project is to understand the ramifications of management practices or distrubances both in the area subject to the practice or disturbance as well as effects which may be removed, in time and space, from the area.
Are there legal restrictions on access or use of the data?
This report is preliminary and has not been reviewed for conformity with US Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, product, or firm names is for desciptive purposes only and does not imply endorsement by the US Government.
|Data format:||Geologic units and structural features in format ARCE Size: 21|