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Y.A.阿萨纳利耶夫最近著文指出,只有沉积岩、沉积变质岩和沉积火山岩中的铅锌矿、铜矿、黄铁矿型多金属矿以及黄铁矿矿床,才属于层状矿床.这些矿床中集中了世界铅、锌探明储量的65%,铜储量的45%.从成因观点看,层状矿床可划分为四类:①远成热液矿床,②沉积矿床,③复成矿床和多成因矿床,④外成后生矿床.层状矿床矿石的原始同生性质的设想,已被许多新的实际资料所证明.有人提出,陆地上的岩石,与沉积作用同时发生的海底火山活动和热液作用,是矿质的来源.矿质在沉积阶段之后,经受了成岩作用、破坏作用、变生作用等改造作用.关于层状矿床的成因,提出了同生成矿作用
YA Asanaliev’s recent paper points out that only lead-zinc, copper, pyrite-type polymetallic ores and pyrite deposits in sedimentary rocks, sedimentary metamorphic rocks and sedimentary volcanic rocks belong to stratiform deposits. The ore deposits concentrate 65% of the world’s lead and zinc and 45% of the copper reserves.From the genesis point of view, stratiform deposits can be divided into four types: (1) far-hydrothermal deposits, (2) sedimentary deposits and (3) And multi-genesis deposits, and ④ epigenetic epoch deposits. The assumption of the original symbiotic nature of stratiform ore deposits has been proved by many new factual data. It has been suggested that rocks on land and submarine volcanic activities that occur simultaneously with sedimentation And hydrothermal fluids, which are the source of minerals.The mineral has undergone diagenesis, destructive effect and metamorphism after the sedimentary period.As to the genesis of stratiform deposit, the syn-formation mineralization