• 责任者：Huang Zhiying (Chengdu Center ; China Geological Survey ; Chengdu 610081 ; China) ; Zhu Tongxing
• 刊名：Geological Bulletin of China
• 出版年：2013
• 卷期：32(9)
• 关键词：生物礁灰岩 ; biolithite ; 滑塌构造 ; slump structure ; 油气资源 ; oil and gas resource ; 云南 ; Yunnan Province
• 页码：p.1436-1439
• 图表：3 illus., 13 refs.
• 分类号：1003
• issnNo：ISSN1671-2552
• isbnNo：CN11-4648/P

     The huge typical platform-marginal oolitic shoal and reefal limestone have been firstly discovered that distributed in the mid-Triassic Guanling Formation, the Dongshan area of the Luxi County, Yunnan Province, during the end of 2012. At the same time, the thin-bedded micritic limestones and slump structures of platform fore-marginal slope are also developed in the Fangbai vil- lage, Xiangyang town. There are apparent vertical tripartite frameworks in the platform marginal reefs： the reefal-base subfacies com- posed of the shoal oolitic and pisolitic limestones; the reefal-core subfacies composed of the boundstone and sponge-hydroid frame- workstone, especially development of bluegreen algae bound-textures and sparry pectinate cement-textures; and the reefal-cap subffa- cies composed of the dark-gray thin-bedded micrite and muddy limestone of the platform fore-marginal slope. In the horizontal dis- tribution, the reefs model developed three obvious properties： the back-reef subfacies consisted of the platforms limestones; the reefal- core subfacies consisted of the boundstone and sponge-hydroid frameworkstone; the front-reef subfacies consisted of the thin-bedded micrite and shale of platform fore-marginal slope with local development of the slump structure and slump breccias that are composed of the reeFal limestone, oolitic and pisolitic grainstones.