Mining

Sulfur miner with 90 kg of sulfur carried from the floor of the Ijen Volcano (2015)

Chalcolithic copper mine in Timna Valley, Negev Desert

Mining is the extraction of valuable minerals or other geological materials from the earth from an orebody, lode, vein, seam, reef or placer deposits which forms the mineralized package of economic interest to the miner.

Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, dimension stone, rock salt, potash, gravel, and clay. Mining is required to obtain any material that cannot be grown through agricultural processes, or created artificially in a laboratory or factory. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water.

单词	Mining safety
释义	Mining safety 原声例句环球慢速英语 In Britain, a tragic event over 40 years ago brought mining safety into the national news. 在英国，40多年前的一起悲剧事件让采矿安全问题成为全国新闻。英语百科 Mining Mining is the extraction of valuable minerals or other geological materials from the earth from an orebody, lode, vein, seam, reef or placer deposits which forms the mineralized package of economic interest to the miner. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, dimension stone, rock salt, potash, gravel, and clay. Mining is required to obtain any material that cannot be grown through agricultural processes, or created artificially in a laboratory or factory. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water.
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Mining safety

Mining