论文部分内容阅读
最古老的金矿床产于加拿大、非洲、印度、西澳的太古代绿岩带中。金的富集也出现于绿岩相火山岩层中间的黄铁矿型矿床,成因上与产出于绿岩带中的花岗岩杂岩体有关。
The oldest gold deposits are found in the Archean greenstone belt of Canada, Africa, India and Western Australia. Gold enrichment also occurs in pyrite-type deposits in the middle of greenstone volcanic rocks and is genetically related to granite complexes that are produced in greenstone belts.