周传明,燕夔,胡杰,孟凡巍,陈哲,薛耀松,曹瑞骥,尹磊明,王金权,王金龙,肖书海,鲍惠铭,袁训来

• 1:中国科学院南京地质古生物研究所
• 2:中国地质大学
• 3:中国地质大学
• 4:中国科学院南京地质古生物研究所

摘要(Abstract)：

新元古代的冰期事件一直是地质界研究的热点之一。包括中国在内 ,世界许多地区新元古代地层中普遍发育有一至两层冰碛岩 ,有的地区甚至可以见到三层冰碛岩 ,在冰碛岩之上往往有碳酸盐岩盖层 ( Cap Carbonate)。通过对皖南休宁新元古代冰碛岩的岩石地层学 ,以及碳、氧稳定同位素化学地层学的研究 ,证实了休宁新元古代地层存在两期冰川的记录 ,并通过与国内外同时代典型地层剖面的对比 ,认为休宁蓝田剖面的两层冰碛岩可能分别相当于 Sturtian冰期和 Marinoan冰期的沉积 ,其时代分别约为 710— 73 0 Ma,5 90— 60 0 Ma

关键词(KeyWords)： 新元古代;冰期事件;冰碛岩;皖南

Abstract:

Keywords:

基金项目(Foundation): 国家重点基础研究发展规划项目( G2 0 0 0 0 7770 0 );; 国家自然科学基金委员会青年基金 ( No. 4990 2 0 0 2 );; 中国科学院创新基金;; 江苏省自然科学基金的资助

作者(Author): 周传明,燕夔,胡杰,孟凡巍,陈哲,薛耀松,曹瑞骥,尹磊明,王金权,王金龙,肖书海,鲍惠铭,袁训来

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