Great Bahama Bank of Guizhou: History and Facies Geometry

全球沉积地质学项目的重点是整个显生界启动和终止浅水碳酸盐岩平台的过程。中国贵州省一个孤立的三叠纪地台的暴露，为记录其出生和死亡、其内部沉积和成岩相模式以及向周围深水沉积的过渡提供了一个极好的机会。野外地层学研究的其他目标包括记录从二叠纪到三叠纪的过渡，表面上是一致的，但台地面积大幅减少，并应用层序地层学和旋回分析的概念来了解台地的历史。流体包裹体和牙形刺染色将被用来建立该地区后三叠纪的热历史，并评价可能的加热趋势，这可能指示最有利的油气保存地区。牙形刺可能有助于改善洲际对比，特别是在二叠纪-三叠系界线。

The processes that have initiated and terminated shallow-water carbonate platforms throughout Phanerozoic time are a focus of the Global Sedimentary Geology Project. Exposures of an isolated Triassic platform in Guizhou Province, PRC, provide an excellent opportunity to document its birth and death, its internal sedimentary and diagenetic facies patterns, and the transitions into the surrounding deeper water deposits. Other objectives of the field stratigraphic study include documenting the transition from Permian to Triassic, apparently conformable but with a major reduction in platform area, and applying concepts of sequence stratigraphy and cycle analysis to understanding the history of the platform. Fluid inclusions and conodont coloration will be used to establish the post-Triassic thermal history of this area and to evaluate possible trends in heating which may indicate the most favorable areas for hydrocarbon preservation. Conodonts may help improve intercontinental correlations, particularly at the Permo- Triassic boundary.