冈底斯新元古代-中生代沉积盆地演化
青藏高原冈底斯地处印度河-雅鲁藏布江结合带和班公湖-双湖-怒江对接带之间,其经历了复杂的沉积-岩浆演化史。将青藏高原冈底斯地层区划分为8个构造-地层分区,并分时段对各个分区的沉积特征进行归纳,总结了冈底斯从新元古代到中生代沉积盆地的发展与演化历史:冈底斯震旦纪由陆缘裂谷开始演化;晚古生代,前期以稳定宽阔的碳酸盐岩沉积为主,发育碳酸盐岩台地与台盆,从石炭纪起,开始转化为伸展性质的裂陷大陆边缘,盆地类型主要为陆缘裂谷;中生代,班公湖-怒江特提斯洋向南与雅鲁藏布新特提斯洋向北双向俯冲,大部分区域早期处于隆升状态,中生代末期发育大型的岩浆弧带,盆地类型以弧间盆地和弧前盆地为主。...
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Published in | 地球科学-中国地质大学学报 no. 8; pp. 1052 - 1064 |
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Main Author | |
Format | Journal Article |
Language | Chinese |
Published |
中国地质大学地质调查研究院,湖北武汉 430074
2014
中国地质大学生物地质与环境地质国家重点实验室,湖北武汉 430074 中国地质大学地球科学学院,湖北武汉 430074%成都地质矿产研究所,四川成都,610082%中国地质大学地质调查研究院,湖北武汉,430074%中国地质大学生物地质与环境地质国家重点实验室,湖北武汉 430074 中国地质大学地球科学学院,湖北武汉 430074 |
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Online Access | Get more information |
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Summary: | 青藏高原冈底斯地处印度河-雅鲁藏布江结合带和班公湖-双湖-怒江对接带之间,其经历了复杂的沉积-岩浆演化史。将青藏高原冈底斯地层区划分为8个构造-地层分区,并分时段对各个分区的沉积特征进行归纳,总结了冈底斯从新元古代到中生代沉积盆地的发展与演化历史:冈底斯震旦纪由陆缘裂谷开始演化;晚古生代,前期以稳定宽阔的碳酸盐岩沉积为主,发育碳酸盐岩台地与台盆,从石炭纪起,开始转化为伸展性质的裂陷大陆边缘,盆地类型主要为陆缘裂谷;中生代,班公湖-怒江特提斯洋向南与雅鲁藏布新特提斯洋向北双向俯冲,大部分区域早期处于隆升状态,中生代末期发育大型的岩浆弧带,盆地类型以弧间盆地和弧前盆地为主。 |
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Bibliography: | Gangdese;Neoproterozoic-Mesozoic;sedimentology;tectonics;basin evolution Wu Jing, Xu Yadong, An Xianyin, Kong Lingyao, Luo Liang, Zhang Kexin( 1.State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China 2.Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China 3.Chengdu Institute of Geology and Mineral Resources, Chengdu 610082, China 4.Institute of Geological Survey, China University of Geosciences, Wuhan 430074, China) The Gangdese area is located in the middle of the Tibetan Plateau.Its southern boundary is the Indus River-Brahma-putra suture zone,and northern boundary is the Bangonghu-Shuanghu-Nujiang suture zone.It is a huge tectonic-magmatic belt, nearly east-west directed.The Gangdese is divided into eight tectonic-stratigraphic subregions in this paper.The sedimentary features of eight stratigraphic subregions in different periods are generalized from Neoproterozoic to Mesozoic,and the develop-ment and evolution of the sedi |
ISSN: | 1000-2383 |
DOI: | 10.3799/dqkx.2014.094 |