| 摘要: |
| 昌都-类乌齐地区的三叠系发育较好,尤其是上三叠统建组剖面多。以露头剖面为基础,在晚三叠世地层中可识别出4个三级层序界面,其中1个Ⅰ类界面与3个Ⅱ类界面;划分出4个三级层序,分别为1个Ⅰ类层序和3个Ⅱ类层序。笔者研究认为,该区克拉通盆地三级层序的类型、结构与数量等方面具有可对比性。 |
| 关键词: 层序地层 层序对比 克拉通盆地 西藏东部 |
| DOI： |
| 附件 |
| 投稿时间：1999-05-07 |
| 基金项目: |
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| The Qamdo-Riwoqe Triassic cratonic basin in eastern Xizang: sequence stratigraphy and correlation |
| PENG Yong-min, WANG Ming-jie, CHEN M ing |
(1. Chengdu Institute of Geology and Mineral Resources, Chengdu 610082, Sichuan, China;
2. China University of Mining Technology and Science, Xuzhou 221008, Jiangsu, China) |
| Abstract: |
| The Triassic strata are widespread in the Qamdo-Riwoqe region,eastern Xizang.In the light of the outcrop sections in this region,four third-order sequence boundaries have been distinguished for the Late Triassic strata. One is assigned to the type 1 sequence boundary and the other three belong to the type 2 sequence boundary. Correspondingly,four third-order sequences are recognized:one type 1 sequence and three type 2 sequences.These third-order sequences may be correlated,and owe their origin to the interaction of inactive tectonics,increasing sediment supply and global sea-level changes. |
| Key words: sequence stratig raphy sequence co rrelation cratonic basin eastern Xizang |
