Great Bahama Bank of Guizhou: History and Facies Geometry

贵州大巴哈马银行：历史和相几何

• 批准号: 9004783
• 负责人: Paul Enos
• 金额: --
• 依托单位: University of Kansas Main Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-09-01 至 1993-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9004783&HistoricalAwards=false
• 关键词: Great; Bahama; Bank; Guizhou; History

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.

显生宙时期浅水碳酸盐岩台地的启动和终止过程是全球沉积地质项目的一个重点。中国贵州省一个孤立的三叠纪地台的暴露为记录其生灭、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极好的机会。现场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，明显的整合，但台地面积明显减少，并应用层序地层学和旋回分析的概念来理解台地的历史。流体包裹体和牙形石着色将用于建立该地区三叠纪后的热史，并评估可能的加热趋势，从而指示最有利的油气保存区域。牙形刺可能有助于改善洲际对比，特别是在二叠纪-三叠纪边界。