- 行业: 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 ...
The antiparallel alignment of unpaired d electrons of metal cations through coupling with p electrons of intervening anions to produce magnetic order. Compare: ferrimagnetism; antiferromagnetism.
Industry:Mining
The apparent chronological sequence in which crystallization of the various minerals of an assemblage takes place, as evidenced mainly by textural features.
Industry:Mining
The apparent color of the surface layers of the sea caused by the reflection of certain components of the visible light spectrum coupled with the effects of dissolved material, concentration of plankton, detritus, or other matter. Color of oceanic water varies from deep blue to yellow and is expressed by number values that are a variation of the Forel scale. Plankton concentrations may cause a temporary appearance of red, green, white, or other colors.
Industry:Mining
The apparent movement observed in any chance section across a fault is a function of several variables: the attitude of the fault; the attitude of the disrupted strata; the attitude of the surface upon which the fault is observed; and the true movement (net slip) along the fault.
Industry:Mining
The apparent weight of a string of drill tools suspended in a liquid-filled borehole. The apparent weight is the weight of the drill string in air less the weight of the liquid displaced by the drill string when suspended in a liquid-filled borehole.
Industry:Mining
The application of a restoring force to a moving element of a physical system in such a manner as to drive the moving element away from its rest position and to aid any deflecting force, so as to increase sensitivity.
Industry:Mining
The application of load to a structure so as to deform it in such a manner that the structure will withstand its working load more effectively or with less deflection.
Industry:Mining
The application of scientific methods and engineering techniques to the exploitation and use of natural resources.
Industry:Mining
The application of scientific principles to the practical constructive art of engineering, with the object of expressing original ideas in the form of drawings.
Industry:Mining
The application of the principles of mechanics and hydraulics to engineering problems dealing with the behavior and nature of soils, sediments, and other unconsolidated accumulations of solid particles; the detailed and systematic study of the physical properties and utilization of soils, esp. in relation to highway and foundation engineering and to the study of other problems relating to soil stability.
Industry:Mining
