华南中晚二叠世含煤沉积类型之重议
DISCUSSION ON MID-LATE PERMIAN COAL DEPOSITION TYPES,SOUTHERN CHINA
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摘要: 华南龙潭组沉积复杂多样,对比困难。本文以岩石地层、生物地层、含煤地层以及它们共同构建的地层组合及叠覆关系作为对比标尺,以其中海相层为主要标志,结合华南中、晚二叠世构造古地理特征,将龙潭组划分为9种类型,并对长兴组、大隆组进行了厘定。Abstract: Th deposition types and correlation of the Longtan Formation in southern China are very complex and difficult.In this paper the longtan Formation is divided into a types according to correlation standards of petrographic strata,biostrata,coal-bearing strata and their together combination and stacking relations,using marine beds as correlation mark and with the consideration of Mid-Late Permian tectono-paleogeographic characteristics.