Tectonic Framework and Sedimentary Feature of the Tarim Basin in Paleozoic
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摘要: 本文以板块构造理论为主线，应用最新的物探成果和钻井资料，分析了前古生代塔里木盆地地球动力学背景和寒武－奥陶纪、志留－泥盆纪、石炭－二叠纪板块构造演化所形成的盆内隆坳构造格架与沉积特征，认为古生代克拉通原型盆地的发育、各时期的沉积相带分布与沉积建造以及下古生界东厚西薄、上古生界东薄西厚的厚度特征，都是不同地质时代构造演化控制的结果。Abstract: Between Tianshan and kunlun一Aerjin Mountains lies Tarim Basin, the largest sedimentary basin inchina. The basin has undergone the formation of basement during pre Siian and development sincePhanerozoic and it is agiant complex basin with the histry of a Paleozoic origina lcraton basin overlain bya Mesozoic-Cenozoic foreland basin. The craton basin had been subjected to a rift in nian, a marginalaulacogen in Cambrian-Ordovician and an intracratonic depression basin in Silurian-Permian. The Paleo-wic Erachem is mainly a set of〔arbonate rocks and clastic rocks of marinefacies and the sedimentary anddepressi ng centers experienced several times of shifting during Paleozoic.The Louer Paleowic is thickerin the east than in the west and the Upper Paleozoic is thinner in the east than in the west. All resultedfrom the control of the plate evolution and tectonic framework in Paleozoic.
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Key words:
- Tarim barn /
- tectonic framework /
- sedimentry feature /
- riff /
- depressior
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