- 行业: Mining
- Number of terms: 33118
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- 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 ...
Insulating thimbles placed over the connected ends of detonator leads coupled in large rounds of shots, and also over the connections between the detonator leads and the shotfiring cable.
Industry:Mining
Intense metamorphism in the anamorphic zone in which rock flowage takes place and simple minerals of low density are changed into more complex ones of greater density by silication, decarbonization, dehydration, and deoxidation. The term was originated by Van Hise in 1904. Compare: anamorphic zone; katamorphism.
Industry:Mining
Intermittent, small-scale movement along a fault surface that, accumulated, results in considerable displacement.
Industry:Mining
Interpenetrating lacy elongate olivine crystals in komatiite, commonly considered to have been formed by quenching. Their disposition resembles the intermesh of an Australian grass for which the texture is named.
Industry:Mining
Intricate and complicated folding, resulting from the subaqueous slumping or sliding of unconsolidated sediments under the influence of gravity.
Industry:Mining
Introducing carbon and nitrogen into a solid ferrous alloy above AC<sub>1</sub>in an atmosphere that contains suitable gases such as hydrocarbons, carbon monoxide, and ammonia. The carbonitrided alloy is usually quench-hardened.
Industry:Mining
