杜叶龙,李双应,孔为伦,李红霞

• 1:合肥工业大学

摘要(Abstract)：

安徽泾县—南陵地区二叠系较发育,主要由碳酸盐岩、硅质岩和碎屑岩组成。二叠系船山组为浅水碳酸盐台地相;栖霞组底部碎屑岩段是滨海沼泽相,臭灰岩段和上、下富硅质灰岩段是水体较深的斜坡中部相,中部灰岩段是浅水开阔碳酸盐台地相,而顶部灰岩段是缓斜坡上部相;孤峰组和大隆组是缺氧滞流环境下的深水盆地至盆地边缘相;武穴组是碳酸盐台地相,银屏组属于滨海潟湖相;龙潭组是一套海陆交互的三角洲相沉积,包括从三角洲前缘到三角洲平原两个亚相,而泾县昌桥龙潭组顶部发育的生物碎屑灰岩属于开阔碳酸盐台地相。纵观二叠纪有三次大的海侵和两次大的海退旋回,海侵时间分别是:栖霞早期、茅口早期和长兴早期,海退时间分别是:紫松—隆林期末和茅口期末,其中栖霞期还包含两个海侵海退的亚旋回。

关键词(KeyWords)： 沉积相;沉积环境;二叠系;泾县;南陵;安徽

Abstract:

Keywords:

基金项目(Foundation): 安徽省自然科学基金项目(No.070415205);; 国家自然科学基金项目(No.40972082、40572076);; 中国石油化工股份有限公司项目(中上扬子及邻区古生代古沉积环境演化研究)联合资助

作者(Author): 杜叶龙,李双应,孔为伦,李红霞

DOI: 10.19839/j.cnki.dcxzz.2010.04.014

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