 |
| |||
| open cast mining; opencast mining; strip mining; surface mining | |||
| opencast mining Extracting metal ores and minerals that lie near the surface by removing the overlying material and breaking and loading the ore; strip mining Superficial mining, in which the valuable rock is exposed by removal of overburden. Coal, numerous nonmetals and metalliferous ores (iron and copper) are worked in this way. Sinonym: strip mining, opencast mining, openpit mining | |||
| dagbouw: 6 do fraz, 3 tematyki |
| Nauki społeczne | 1 |
| Pospolicie | 1 |
| Węgiel | 4 |