- Sektör: Mining
- Number of terms: 33118
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The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
A map that shows stratified formations in their original position before movement.
Industry:Mining
A map that shows the areal geology of an ancient surface at some time in the geologic past; esp. such a map of the surface immediately below an unconformity, showing the geology as it existed at the time the surface of unconformity was completed but before the overlapping strata were deposited. Paleogeologic maps were introduced by Levorsen (1933).
Industry:Mining
A map using data in a software format so that the maps have the characteristic of layered features on an overlay generated by computer-aided drafting and design to plot these features.
Industry:Mining
A map, drawn to a suitable scale, showing the proposed mine development, shafts, works, etc., in relation to existing surface features.
Industry:Mining
A marble in which calcium silicate and/or magnesium silicate minerals are conspicuous.
Industry:Mining
A marble in which calcium silicate and/or magnesium silicate minerals are conspicuous.
Industry:Mining
A marble suitable for use as polished dimension stone; e.g., the Vermont metamarble. Compare: orthomarble; metalimestone.
Industry:Mining
A marcasite in twin crystals resembling the head of a spear. See: marcasite
Industry:Mining
