- 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 study of plants of past geological ages through the investigation of fossils. Compare: paleontology; palynology.
Industry:Mining
The study of sound, including its production, transmission, reception, and utilization, esp. in fluid media such as air or water. With reference to Earth sciences, it is esp. relevant to oceanography. The term is sometimes used to include compressional waves in solids; e.g., seismic waves.
Industry:Mining
The study of spatial relations, esp. on a microscale, of the structural-textural units that comprise a rock, including a study of the movements that produced these elements. The units may be rock fragments, mineral grains, or cleavages.
Industry:Mining
The study of the composition, characteristics, and origin of sediments and sedimentary rocks.
Industry:Mining
The study of the correct and incorrect nomenclature of gems, with emphasis on clarifying names and terms that may mislead or deceive purchasers.
Industry:Mining
The study of the origin, distribution, and abundance of elements in the universe.
Industry:Mining
The study of the planet Earth--the materials of which it is made, the processes that act on these materials, the products formed, and the history of the planet and its life forms since its origin. Geology considers the physical forces that act on the Earth, the chemistry of its constituent materials, and the biology of its past inhabitants as revealed by fossils. Clues on the origin of the planet are sought in a study of the Moon and other extraterrestrial bodies. The knowledge thus obtained is placed in the service of humans-- to aid in discovery of minerals and fuels of value in the Earth's crust, to identify geologically stable sites for major structures, and to provide foreknowledge of some of the dangers associated with the mobile forces of a dynamic Earth.
Industry:Mining
