- 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 ...
A mercury-in-glass thermometer used to measure temperatures of the sea at depth. The temperature is recorded when the thermometer is inverted; and the recording is maintained until it is once again upright. A protected thermometer and an unprotected thermometer are usually used as a pair, attached to a Nansen bottle.
Industry:Mining
A metal in group IA of the periodic system; namely, lithium, sodium, potassium, rubidium, cesium, and francium. They form strong alkaline hydroxides; hence, the name.
Industry:Mining
A metal in group IA of the periodic system; namely, lithium, sodium, potassium, rubidium, cesium, and francium. They form strong alkaline hydroxides; hence, the name.
Industry:Mining
A metal in group IIA of the periodic system; namely, beryllium, magnesium, calcium, strontium, barium, and radium; so called because the oxides or earths of calcium, strontium, and barium were found by the early chemists to be alkaline in reaction.
Industry:Mining
A metal made from charcoal iron obtained from bog iron or from sparry carbonate of iron.
Industry:Mining
A metal merchant, as distinct from a producer's agent or broker, often acts as a principal, buying metal or concentrate from producers and others and selling it to others. The merchant will often hold metal on personal account while waiting for a buyer.
Industry:Mining
A metal object lost in a borehole that has been cut or ground away with a milling bit.
Industry:Mining
