| 塔里木盆地西南部南华纪裂谷体系的发现及意义 |
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| 引用本文： | 李勇,陈才,冯晓军,张亮,曾昌民,范秋海.塔里木盆地西南部南华纪裂谷体系的发现及意义[J].岩石学报,2016,32(3):825-832. |
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| 作者姓名： | 李勇 陈才 冯晓军 张亮 曾昌民 范秋海 |
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| 作者单位： | 浙江大学地球科学学院, 杭州 310027;中国石油塔里木油田分公司, 库尔勒 841000,中国石油塔里木油田分公司, 库尔勒 841000,中国石油塔里木油田分公司, 库尔勒 841000,中国石油塔里木油田分公司, 库尔勒 841000,中国石油塔里木油田分公司, 库尔勒 841000,中国石油塔里木油田分公司, 库尔勒 841000 |
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| 基金项目： | 本文受国家科技重大专项课题(2011ZX05003-004)资助. |
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| 摘 要： | 通过系统的地震资料解释,首次在塔西南地区发现南华纪裂谷体系。该裂谷平面上呈NW-SE走向的长条状,长约450km,宽约70~110km。剖面上为一箕状盆地,西南边界为一大型正断层,是裂谷沉积的同沉积断层,裂谷沉积向西南逐渐加厚,向东北逐渐减薄,沉积中心靠近裂谷的西南边界,构成一大型半地堑构造。其中,南华系是一套典型的生长地层,是裂谷沉积的主体;震旦系为裂谷晚期-后裂谷期沉积。塔西南南华纪裂谷是罗迪尼亚超大陆裂解过程中形成的,其油气勘探价值非常值得期待。
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| 关 键 词： | 塔西南 南华纪 裂谷 罗迪尼亚超大陆 半地堑 |
| 收稿时间： | 5/1/2015 12:00:00 AM |
| 修稿时间： | 2015/10/20 0:00:00 |
New discovery of Nanhuaian rift system in southwestern Tarim basin and its geological significance. |
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| LI Yong,CHEN Cai,FENG XiaoJun,ZHANG Liang,ZENG ChangMin and FAN QiuHai.New discovery of Nanhuaian rift system in southwestern Tarim basin and its geological significance.[J].Acta Petrologica Sinica,2016,32(3):825-832. |
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| Authors: | LI Yong CHEN Cai FENG XiaoJun ZHANG Liang ZENG ChangMin and FAN QiuHai |
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| Institution: | College of Earth Sciences, Zhejiang University, Hangzhou 310027, China;Tarim Oilfield Company, PetroChina, Korla 841000, China,Tarim Oilfield Company, PetroChina, Korla 841000, China,Tarim Oilfield Company, PetroChina, Korla 841000, China,Tarim Oilfield Company, PetroChina, Korla 841000, China,Tarim Oilfield Company, PetroChina, Korla 841000, China and Tarim Oilfield Company, PetroChina, Korla 841000, China |
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| Abstract: | We firstly discovered the Nanhuaian rift system in southwestern Tarim Basin after a systemic interpretation of seismic data. The rift strikes NW-SE and presents an elongated shape in the plane with about 450km long and 70~110km wide. It is a dustpan-like basin in the profile:a large-sized normal fault, as the rift's syndeposition fault, is the southwestern border of the rift; the deposition thickness gradually thinning towards northeast. The deposition center is close to the southwestern border of the rift system, induced a large-scale half graben structure. The Nanhua system as typical growth strata is the main part of the rift deposition system. The Sinian system is deposited in the late period of or after the rifting. The southwestern Tarim Basin rift is formed during the breakup of the Rodinia Supercontinent, with a potential oil and gas exploration foreground. |
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| Keywords: | Southwestern Tarim Basin Nanhuaian Rift Rodinia Supercontinent Half graben structure |
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