龚方怡,吴荣昌,詹仁斌,栾晓聪

• 1:中国科学院南京地质古生物研究所现代古生物学和地层学国家重点实验室
• 2:中国科学技术大学研究生院
• 3:中国科学院大学

摘要(Abstract)：

华南奥陶纪地层发育连续,出露广泛,是开展相关地层学研究的理想地区。对皖南池州石台地区上奥陶统大田坝组、宝塔组及汤头组开展了详细的稳定碳同位素地层学研究,研究表明碳同位素曲线在宝塔组中下部显示一次明显的正漂移。根据前人关于该地区宝塔组的牙形类生物地层学研究结果,本碳同位素漂移事件应为GICE(Guttenberg Isotope Carbon Excursion)事件。基于碳同位素变化趋势与华南及全球其他地区进行对比,完善了华南扬子区奥陶系GICE的记录,进一步证实这次碳同位素漂移事件具有较好的区域和全球对比意义。

关键词(KeyWords)： GICE;碳同位素地层;上奥陶统;下扬子区;安徽

Abstract:

Keywords:

基金项目(Foundation): 国家基金委基金项目(No.41672008,41290261,41521061)资助

作者(Author): 龚方怡,吴荣昌,詹仁斌,栾晓聪

DOI: 10.19839/j.cnki.dcxzz.2017.04.006

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