摘要
太子河流域下寒武统馒头组可划分4个相带,即潮上膏云岩相,潮上白云岩相,潮间灰岩白云岩相,潮下云斑灰岩相,属障壁海碳酸盐潮坪沉积。石膏形成于潮上带萨布哈,是干旱、燥热环境下的产物。成矿有利的古地理环境是古岛的前缘。
Mantou Formation of the Lower Cambrian in Taitze River Basin can be aiviaea into 4 facies belts, namely, supratidal gypsum--dolomite facies, supratidal dolomite facies, intertidal limestone--dolomite facies, subtidal micaphyre--limestone, belonging to carbonate tidal flat deposits in barrier--sea. Anhydrite deposits formed in sabakhas under the conditions of dry and hot environment. The palaeogeographic environment favourable to ore--forming is the place in front of palaeo--islands.
关键词
石膏
矿床
成因
馒头组
早寒武世
Taitze River Mantou Formation Sedimentary environment Anhydrite deposit
