西藏冈底斯当惹雍错-许如错南北向地堑的特征及成因

曹圣华; 李德威; 余忠珍; 徐祖丰; 唐峰林

Volume 34 Issue 6

Jun. 2009

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Article Navigation > Earth Science > 2009 > 34(6): 914-920

CAO Sheng-hua, LI De-wei, YU Zhong-zhen, XU Zu-feng, TANG Feng-lin, 2009. Characteristics and Mechanism of the Dangra Yun Co and Xuru Co NS-Trending Graben in the Gangdese, Tibet. Earth Science, 34(6): 914-920.

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Characteristics and Mechanism of the Dangra Yun Co and Xuru Co NS-Trending Graben in the Gangdese, Tibet

1.
Faculty of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China
2.
Jiangxi Institute of Geological Survey, Jiangxi 330030, China
3.
Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China

Received Date: 2008-09-12
Publish Date: 2009-11-25

Abstract

Abstract

The Dangra Yun Co and Xuru Co NS-trending graben located at central section of the Gangdese, is controlled by NS-trending high-angle normal faults and consists of the Dangqung Co, Dangra Yun Co and Xuru Co. Miocene alkati volcanic rock distributed along the graben indicates an intraplate extensional tectonic environment by its petrochemical and geochemical analyses. A 12.6 Ma age is determined for leucite phonolite by the K-Ar method, and it is found that graben occurred at the late time of Miocene (about 13 Ma), and remained active until Holocene. There are Middle Pliocene to Holocene lacustrine deposits in the graben. The Dangra Yun Co and Xuru Co graben, as well as other NS-trending grabens, is the results of extension of upper crust driven by the thermal upderplating of the lower crust flowing and thickening. S-N extension became E-W extension with the change of flow direction in the lower crust.
- NS-trending graben,
- structural geology,
- Late Cenozoic,
- Dangra Yun Co and Xuru Co,
- the Qinghai-Tibet plateau

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References

Armijo, R., Mercier, P., Tapponnier, J. L., et al., 1986. Quaternary extension in southern Tibet: Field observations and tectonic implications. J. Geophys. Res., 91 (B14): 13803-13872. doi: 10.1029/JB091iB14p13803

Blisniuk, P. M., Hacker, B. R., Glodny, J., et al., 2001. Normal faulting in central Tibet since at least 13.5 Myrago. Nature, 412 (6847): 628-632. doi: 10.1038/35088045

Burchfiel, B. C., Chen, Z. L., Hodges, K. V., et al., 1992. The South Tibetan detachment system, Himalayan orogen: Extension contemporaneous with and parallel to shortening in a collisional mountain belt. Geological Society of America, Special paper, 1-51.

Burg, J. P., Chen, G. M., 1984. Tectonics and structural zonation of southern Tibet, China. Nature, 311 (5983): 219-223. doi: 10.1038/311219a0

Li, C., Zhai, Q. G., Xu, F., et al., 2005. Kinematics of the active north-south-trending Chazang Co-Xainza tectonic belt, Xizang (Tibet). Geological Review, 51 (4): 353-359 (in Chinese with English abstract).

Li, D. W., 1992. On tectonic asymmetrical evolution of the Himalayan orogenic belt. Earth Science—Journal of China University of Geosciences, 17 (5): 539-545 (inChinese with English abstract).

Li, D. W., 1995. On continental tectonics and its dynamics. Earth Science—Journal of China University of Geosciences, 20 (1): 19-26 (in Chinese with English abstract).

Li, D. W., 2003. A new model for uplifting mechanism of Qinghai-Tibet plateau. Earth Science—Journal of China University of Geosciences, 28 (6): 593-600 (in Chi-nese with English abstract).

Li, D. W., Liu, D. M., Liao, Q. A., et al., 2003. Definition and significance of the Lhagoi Kangri metamorphic core complexes in Sa'gya, southern Tibet. Geological Bulletin of China, , 22 (5): 303-307 (in Chinese with Eng-lish abstract).

Li, D. W., Zhuang, Y. X., 2006. Scientific problems of continental dynamics in the Qinghai-Tibet plateau. Geological Science and Technology Information, 25 (2): 1-10, 18 (in Chinese with English abstract).

Li, Y. L., Wang, C. S., Yi, H. S., et al., 2005. A discussion on several problems regarding to the Cenozoic grabens in the Qinghai-Tibet plateau. Geological Review, 51 (5): 493-501 (in Chinese with English abstract).

Liao, S. P., Chen, Z. H., Luo, X. C., et al., 2002. Discovery of leucite phonolite in the Tangra Yumco area, Tibet and its geological significance. Geological Bulletin of China, 21 (11): 735-738 (in Chinese with English ab-stract).

Wu, Z. H., Jiang, W., Wu, Z. H., et al., 2002. Dating of typical basin and range tectonic in central Tibetan plateau. Acta Geoscientia Sinica, 23 (4): 289-294 (in Chinesewith English abstract).

Xu, Z. F., Liu, X. Y., Luo, X. C., et al., 2006. Basic characteristic of the Neogene-Quaternary graben in the Tangqung Co Xuru Co area, Gangdise, Qinghai-Tibet plateau. Geological Bulletin of China, 25 (7): 822-826 (in Chinese with English abstract).

Zhang, J. J., Ding, L., 2003. East-west extension in Tibetan plateau and its significance to tectonic evolution. Chinese Journal of Geology, 38 (2): 179-189 (in Chinese withEnglish abstract).

李才, 翟庆国, 徐锋, 等, 2005. 西藏查藏错-申扎南北向活动构造带运动学特点. 地质论评, 51 (4): 353-359. doi: 10.3321/j.issn:0371-5736.2005.04.001

李德威, 1992. 喜马拉雅造山带的构造不对称演化. 地球科学——中国地质大学学报, 17 (5): 539-545. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX199205008.htm

李德威, 1995. 再论大陆构造与动力学. 地球科学——中国地质大学学报, 20 (1): 19-26. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX501.002.htm

李德威, 2003. 青藏高原隆升机制新模式. 地球科学——中国地质大学学报, 28 (6): 593-600. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX200306002.htm

李德威, 刘德民, 廖群安, 等, 2003. 藏南萨迦拉轨岗日变质核杂岩的厘定及其成因. 地质通报, 22 (5): 303-307. doi: 10.3969/j.issn.1671-2552.2003.05.002

李德威, 庄育勋, 2006. 青藏高原大陆动力学的科学问题. 地质科技情报, 25 (2): 1-10, 18. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKQ200602000.htm

李亚林, 王成善, 伊海生, 等, 2005. 青藏高原新生代地堑构造研究中几个问题的讨论. 地质论评, 51 (5): 493-501. doi: 10.3321/j.issn:0371-5736.2005.05.002

廖思平, 陈振华, 罗小川, 等, 2002. 西藏当惹雍错地区白榴石响岩的发现及地质意义. 地质通报, 21 (11): 735-738. doi: 10.3969/j.issn.1671-2552.2002.11.008

吴珍汉, 江万, 吴中海, 等, 2002. 青藏高原腹地典型盆-山构造形成时代. 地球学报, 23 (4): 289-294. doi: 10.3321/j.issn:1006-3021.2002.04.001

徐祖丰, 刘细元, 罗小川, 等, 2006. 青藏高原冈底斯当穹错-许如错一带新近纪-第四纪地堑的基本特征. 地质通报, 25 (7): 822-826. doi: 10.3969/j.issn.1671-2552.2006.07.008

张进江, 丁林, 2003. 青藏高原东西向伸展及其地质意义. 地质科学, 38 (2): 179-189. doi: 10.3321/j.issn:0563-5020.2003.02.005

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Characteristics and Mechanism of the Dangra Yun Co and Xuru Co NS-Trending Graben in the Gangdese, Tibet

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