| 晚奥陶世五峰期扬子海盆海平面变化旋回与古水体深度 |
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| 引用本文： | 何卫红,汪啸风,卜建军. 晚奥陶世五峰期扬子海盆海平面变化旋回与古水体深度[J]. 沉积学报, 2002, 20(3): 367-375 |
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| 作者姓名： | 何卫红 汪啸风 卜建军 |
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| 作者单位： | 中国地质调查局地层古生物研究中心,湖北宜昌,443003 |
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| 基金项目： | 中国地质调查局研究项目，， |
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| 摘 要： | 通过晚奥陶世五峰期扬子海盆的古地理格局、岩性及生物群的纵向变化、Ce异常变化的旋回性和生物群对海水深度的指示作用的讨论, 认为扬子海盆晚奥陶世五峰期经历了5个旋回的海平面变化, 海水最浅为 50~ 80m(观音桥层 ), 海水最深约500m左右。
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| 关 键 词： | 古地理格局 岩性及生物群 Ce异常变化 海平面 五峰期 扬子海盆 |
| 文章编号： | 1000-0550(2002)03-0367-09 |
| 收稿时间： | 2001-08-09 |
| 修稿时间： | 2001-08-09 |
The Eustatic Cycles and the Depth of Water Mass of the Latest Ordovician Wufengian in the Yangtse Basin |
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| HE Wei-hong WANG Xiao-feng BU Jian-jun. The Eustatic Cycles and the Depth of Water Mass of the Latest Ordovician Wufengian in the Yangtse Basin[J]. Acta Sedimentologica Sinica, 2002, 20(3): 367-375 |
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| Authors: | HE Wei-hong WANG Xiao-feng BU Jian-jun |
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| Affiliation: | Centre for Stratigraphy and Paleontology, China Geological Survey, Yichang Hubei,443003 |
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| Abstract: | On the basis of discussing the paleogeographic reconstruction, the change of lithology and biota through the section, the cycles of Ce anormaly and the indicating biota for depth of water mass from the latest Ordovician in the Yangtze Basin, the author holds that 5 eustatic cycles in the latest Ordovician Wufengian and that, the depth of water mass is at least 50 to 80 metres (respect to Guanyinqiao Bed) and at most 500 metres or so. |
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| Keywords: | paleogeographic reconstruction lithology and biota Ce anormaly eustatic cycles Wufengian Yangtse Basin |
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