- Industry: Mining
- Number of terms: 33118
- Number of blossaries: 0
- Company Profile:
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 well that yields water at the ground surface only by means of a pump or other lifting device.
Industry:Mining
A well-cemented, rubbly limestone composed largely of broken and rolled fragments of coral-reef deposits; e.g., the Coral Rag of the Jurassic, used locally in Great Britain as a building stone.
Industry:Mining
A well-defined area containing ore deposits of a particular kind; e.g., the porphyry copper deposits of the Southwestern United States. Related to, but not exactly synonymous with, metallogenic province, which need not contain economic ore deposits.
Industry:Mining
A well-defined bed resembling a slump sheet but produced by seismic shock from an earthquake and resulting in load casting without horizontal slip.
Industry:Mining
A well-sorted, lithologically homogeneous conglomerate that forms the bottom stratigraphic unit of a sedimentary series and that rests on a surface of erosion, thereby marking an unconformity; esp. a coarse-grained beach deposit of an encroaching or transgressive sea. It commonly occurs as a relatively thin, widespread or patchy sheet, interbedded with quartz sandstone.
Industry:Mining
A well-sorted, quartz-enriched sandstone that lacks the well-rounded grains of an orthoquartzite; specif. a lithic sandstone intermediate in composition between subgraywacke and orthoquartzite.
Industry:Mining
