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| 新疆塔西南区海相白垩系—第三系界线的地球化学异常 | |
| 引用本文： | 郭宪璞,郝诒纯,叶留生,姚培毅,付德荣,李汉敏,阮培华.新疆塔西南区海相白垩系—第三系界线的地球化学异常[J].现代地质,2000,14(3):348-354. |
| 作者姓名： | 郭宪璞 郝诒纯 叶留生 姚培毅 付德荣 李汉敏 阮培华 |
| 作者单位： | 1. 中国地质科学院地质研究所,北京,100037 2. 中国地质大学,北京,100083 3. 西北石油地质局,乌鲁木齐,830011 |
| 基金项目： | 西北石油地质局局控科研项目!(编号 :85 -945 -0 1) |
| 摘 要： | 新疆塔里木盆地西南地区海相白垩系—第三系的界线粘土层发现于依格孜牙组和吐依洛克组之间。这一层具有相当复杂的元素组合 ,存在诸多元素异常。它不仅是一条生物界线 ,而且是一条地球化学界线。这一异常事件层代表了白垩纪与第三纪之交的突变事件 ,具有全球的一致性和等时性 ,因而具有自然界线性质。 |
| 关 键 词： | 界线粘土层 地球化学异常 海相白垩系—第三系界线 塔里木盆地西南地区 |
| 修稿时间： | 2000-05-08 |
Abnormal geochemical characteristics of the boundary between the marine Cretaceous-Tertiary in the southwestern Tarim Basin |
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| GUO Xian pu ,HAO Yi chun ,YE Liu sheng ,YAO Pei yi ,FU De rong ,LI Han min ,RUAN Pei hua.Abnormal geochemical characteristics of the boundary between the marine Cretaceous-Tertiary in the southwestern Tarim Basin[J].Geoscience——Journal of Graduate School,China University of Geosciences,2000,14(3):348-354. | |
| Authors: | GUO Xian pu HAO Yi chun YE Liu sheng YAO Pei yi FU De rong LI Han min RUAN Pei hua |
| Institution: | GUO Xian pu 1,HAO Yi chun 2,YE Liu sheng 3,YAO Pei yi 1,FU De rong 1,LI Han min 3,RUAN Pei hua 2 |
| Abstract: | The marine K T boundary clay have been found by authors between the Yigzya Formation and Tuylouk Formation,not found between the Tuylouk Formation and Artashi Formation in the southwestern Tarim Basin.There are a very complex element assemblage and abnormal contents of a number of elements,particularly iridium,osmium and REE.It is not only a boundary of organism extinction,but also a boundary of abnormal geochemistry.This abnormal event bed represents a catastrophic event of the Cretaceous Tertiary with global consistency and simultaneity.Therefore, it should be a natural boundary. |
| Keywords: | boundary clay geochemical anomaly boundary of the marine Cretaceous Tertiary the southwestern Tarim Basin |
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