Ore-controlling Rock Assemblage of Hydrothermal Sedimentary Superlarge Ore Deposits Bio-Reef-Chert Suite, Guangdong Province
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摘要: 礁硅岩套是控制广东大降平超大型黄铁矿床、凡口超大型铅锌矿床和长坑超大型金、银矿床的重要岩石组合,它是由生物礁相碳酸盐岩、热水沉积岩(矿)、细碎屑岩和条带泥灰岩、同层位或相邻地区地层中的火山质岩或次火山岩,以固定的时空有序的状态组合而成,是在特殊的地质背景中盆地演化到一定阶段内,是由盆地正常沉积、生物、盆下源的热水沉积和岩石圈深部的岩浆综合作用形成的产物。Abstract: Bio-reef-chert Suite is an important rock assemblage for controlling Dajiangping superlarge pyrite deposits, Fankou super-large lead-zinc deposits and Changkeng superlarge gold-silver deposits. It is formed as a fixed and ordered suite at space andtime, rnmposed of carbonate rocks of reef facies, hydrothermal sedimentary rocks (ores), fine detrital rocks intercalated bandedmudlimestone, synchronous volcanic rocks, tuffaceous rocks and volcanic veins in the isostrata in mining area or in the neighbordistrict. It is also the comprehensive products of normal sedimentary process, biological process in basin, hydrothermal sedimentaryprows under basin base and magmatic process in the deep of lithosphere, when basin evoluted at a special stage in a special geologi-cal setting.
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