| 济阳坳陷古近纪咸化层段甲藻甾烷和C31甾烷特征 |
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| 引用本文： | 袁文芳,曾昌民,陈世悦.济阳坳陷古近纪咸化层段甲藻甾烷和C31甾烷特征[J].沉积学报,2008,26(4):683-687. |
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| 作者姓名： | 袁文芳 曾昌民 陈世悦 |
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| 作者单位： | 中国石油塔里木油田分公司勘探开发研究院 新疆库尔勒 841000 |
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| 摘 要： | 通过对济阳坳陷古近纪咸化层段源岩的饱和烃色谱质谱分析发现，沙河街组一段、沙三段和沙四段上亚段源岩中发育了可以指示海侵发生的甲藻甾烷和C31甾烷分子化石，并且C31甾烷通常出现在水体盐度更高、海侵程度更大的环境中，从而推测三个层段的咸化与海相关。
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| 关 键 词： | 济阳坳陷 古近纪〖KG1〗分子化石 甲藻甾烷 C31甾烷 |
| 收稿时间： | 1900-01-01 |
Characteristic of Dinosterane and C31 Sterane in Paleocene Saline Formation of Jiyang Depression |
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| YUAN Wen-fang,ZENG Chang-min,CHEN Shi-yue.Characteristic of Dinosterane and C31 Sterane in Paleocene Saline Formation of Jiyang Depression[J].Acta Sedimentologica Sinica,2008,26(4):683-687. |
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| Authors: | YUAN Wen-fang ZENG Chang-min CHEN Shi-yue |
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| Institution: | Institute of Exploration and Development , PetroChina Tarim Oil field Company , Kuerle Xinjiang 84100 |
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| Abstract: | The study on chromatography mass analysis of saturated hydrocarbons in Paleogene saline formation of Jiyang Depression shows that dinosterane and C31sterane developed in source rocks of the 1st member(Es1), the 3rd member(Es3)and upper the 4th member(EsU4)of Shahejie Formation, these molecular fossils are marks of marine transgression, moreover C31sterane denotes that the formation is influenced more by sea water, therefore salinity of 3 members related to marine transgression. |
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| Keywords: | Jiyang Depression Paleogene molecular fossil dinosterane C31sterane |
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