- 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 ...
Any one of a number of geophysical devices used to determine the deviation of a borehole from vertical.
Industry:Mining
Any one of a set of numbers designating linear and/or angular quantities that specify the position of a point on a line, in space, or on a given plane or other surface in relation to a given reference system; e.g., latitude and longitude are coordinates of a point on the Earth's surface. The term is usually used in the plural, esp. to designate the particular kind of reference system (such as spherical coordinates, plane coordinates, and polar coordinates).
Industry:Mining
Any one of several indicator plants that serve as guides when prospecting for copper ores.
Industry:Mining
Any one of the naturally occurring black solid bitumens that are soluble in carbon disulfide and fuse above 230 degrees F (110 degrees C). Examples are uintahite, glance pitch, and grahamite.
Industry:Mining
Any organic compound, gaseous, liquid, or solid, consisting solely of carbon and hydrogen. They are divided into groups of which those of special interest to geologists are the paraffin, cycloparaffin, olefin, and aromatic groups. Crude oil is essentially a complex mixture of hydrocarbons.
Industry:Mining
Any part of geologic time, from Precambrian onward, in which the climate was notably cold in both the Northern and Southern Hemispheres, and widespread glaciers moved toward the equator and covered a much larger total area than those of the present day; specif. the latest of the glacial epochs, known as the Pleistocene Epoch.
Industry:Mining
Any part of geologic time, from Precambrian onward, in which the climate was notably cold in both the Northern and Southern Hemispheres, and widespread glaciers moved toward the equator and covered a much larger total area than those of the present day; specif. the latest of the glacial epochs, known as the Pleistocene Epoch.
Industry:Mining
Any part of geologic time, from Precambrian onward, in which the climate was notably cold in both the Northern and Southern Hemispheres, and widespread glaciers moved toward the equator and covered a much larger total area than those of the present day; specif. the latest of the glacial epochs, known as the Pleistocene Epoch.
Industry:Mining
Any photograph taken from the air, such as a photograph of a part of the Earth's surface taken by a camera mounted in an aircraft.
Industry:Mining
