【摘要】 礁硅岩套是一种重要的含矿岩石组合,它是由生物礁相碳酸盐岩、热水沉积岩(矿)、细碎屑岩和泥灰岩、同层位或相邻地区地层中的火山质岩或潜火山岩,以较为固定的时空有序的状态组合而成。根据生物礁的形成环境和热水沉积作用的产出方式,礁硅岩套可分为盆地型、台地型和过渡型三类。它是在特殊地质背景中,在盆地演化的一定阶段内,由盆地正常沉积作用、盆地中的生物作用、盆下源的热水沉积作用和岩石圈深部岩浆作用综合形成的产物。更多还原

【Abstract】 Reef-chert Suite is an important rock assemblage. It is formed as a fixed and orderly suite in space and time. composed of carbonate rocks of reef facies, hydrothermal sedimentary rocks (ores) . fine detrital rocks and marls, synchronous volcanic rocks, subvolcanic rocks of the same horizon in mining area or in the neighboring district. Reef-chert suite may be divided into three types: basinal. platformal and intermediate types, based on the paleoenvironment of reef-formation and patterns of hydrothermal process. It is the comprehensive product of normal sedimentary process, biological process in basin, hydrothermal sedimentary process under the basin and mag-matic process in the great depth of lithosphere, when basin had evolved to a special stage under a special geological setting.更多还原