| 青藏高原三叠纪沉积盆地与古生物特征 |
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| 引用本文： | 陈明, 杨恒书. 青藏高原三叠纪沉积盆地与古生物特征[J]. 沉积与特提斯地质, 2003, 23(2): 14-19. |
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| 作者姓名： | 陈明 杨恒书 |
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| 作者单位： | 四川省地勘局 川西北地质大队,四川 绵阳 621000 |
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| 摘 要： | 青藏高原三叠纪沉积盆地形成演化可划分为早印支期和晚印支期两个阶段。按沉积盆地演化及古生物特征可划分为西藏型、巴颜喀拉型和西秦岭型3个组成部分;生物古地理区划相应归属于华夏特提斯区南方省西藏-滇西生态区、巴颜喀拉生态区和西秦岭生态区。
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| 关 键 词： | 三叠纪 沉积类型 古生物 青藏高原 |
| 文章编号： | 1009-3850(2003)02-0014-06 |
| 收稿时间： | 2003-04-25 |
| 修稿时间： | 2003-04-25 |
Triassic sedimentary basins and paleontological features on the Qinghai-Xizang Plateau |
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| CHEN Ming, YANG Heng-shu. Triassic sedimentary basins and paleontological features on the Qinghai-Xizang Plateau[J]. Sedimentary Geology and Tethyan Geology, 2003, 23(2): 14-19. |
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| Authors: | CHEN Ming YANG Heng-shu |
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| Affiliation: | Northwest Geological Party,Sichuan Bureau of Geology and Mineral Resources,Mianyang 621000,Sichuan,China |
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| Abstract: | The Triassic strata on the Qinghai-Xizang Plateau are conspicuous by their widespread occurrence, various types and abundant mineral resources. These sedimentary strata are considered to be assigned to the intracontinental rift basin deposits that differ from the oceanic basin deposits. The sedimentary basins on the Plateau have gone through two stages of evolution:early and late Indosinian, and may be grouped into three types:Xizang-type, Bayan Har-type and West Qinling-type according to the evolutionary patterns of the basins and paleontological features. Biopalaeogeographically the studied areas should be assigned to the Xizang-West Yunnan, Bayan Har and West Qinling ecological provinces. |
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| Keywords: | Triassic sediment type paleontology Qinghai-Xizang Plateau |
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