stripping ratio
1Strip or stripping ratio — The amount of overburden that must be removed to gain access to a unit amount of coal. A stripping ratio may be expressed as (1) thickness of overburden to thickness of coal, (2) volume of overburden to volume coal, (3) weight of overburden to… …
2Dividend stripping — is the purchase of shares just before a dividend is paid, and the sale of those shares after that payment, i.e. when they go ex dividend. This may be done either by an ordinary investor as an investment strategy, or by a company s owners or… …
3Air stripping — is the transferring of volatile components of a liquid into an air stream. It is a chemical engineering technology used for the purification of groundwaters and wastewaters containing volatile compounds. Volatile compounds have relatively high… …
4coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… …
5mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… …
6Powder River Basin — The Powder River Basin The Powder River Basin is a geologic region in southeast Montana and northeast Wyoming, about 120 miles (190 km) east to west and 200 miles (320 km) north to south, known for its coal deposits. The region supplies …
7Coal mining — Men leaving a UK colliery at the close of a shift Surface coal mining in Wyo …
8Mount Toromocho — (Chinese: 特罗莫克山[1][2]), meaning a bull without horns in Spanish, is a mountain in the Junín Region, Peru that sits next to the long established mining camp of Morococha and hosts a large polymetallic metal deposit. It is now owned by the Aluminum …
9Petra Diamonds — Infobox Company company name = Petra Diamonds company company type = Public (aim|PDL) foundation = location = flagicon|Jersey Jersey key people = Adonis Pouroulis, Chairman Johan Dippenaar, CEO industry = Diamond Mining revenue = US $76.9 million …
10Вскрыши коэффициент — (a. stripping ratio, barring coefficient; н. Abraumkennzahl, Abraumkoeffizient; ф. taux de decouverte; и. coeficiente del desmonte) характеризует количество вскрышных пород, приходящихся на единицу добытого или подлежащего добыче п. и.… …
