| 龙门山唐王寨地区逆掩冲覆体的沉积学研究 |
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| 引用本文： | 杨文杰,洪庆玉.龙门山唐王寨地区逆掩冲覆体的沉积学研究[J].西南石油学院学报,1989(2). |
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| 作者姓名： | 杨文杰 洪庆玉 |
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| 作者单位： | 西南石油学院勘探系
(杨文杰)，西南石油学院研究生部(洪庆玉) |
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| 摘 要： | 推覆体的泥盆纪沉积是上扬子被动大陆边缘典型滨浅海补偿沉积。浑水陆源碎屑前滨桐与近滨相旋迥沉积,是在不断水进背景下的由西至东的超覆;浑水清水混合沉积,是由陆棚、近滨至泻湖的海退序列充填沉积;进入清水沉积阶段,是平坦的浅水碳酸盐台地沉积。根据沉积梯度计算,水平推覆距离大约为36公里。
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| 关 键 词： | 沉积模式 沉积环境 泥盆纪 |
DEPOSITIONAL RESEARCH ON OVERTHRUST NAPPE OF TONGWANGZHAI AREA IN LONGMEN MOUNTAIN |
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| Yang Wejie Hong Qingyu.DEPOSITIONAL RESEARCH ON OVERTHRUST NAPPE OF TONGWANGZHAI AREA IN LONGMEN MOUNTAIN[J].Journal of Southwest Petroleum Institute,1989(2). |
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| Authors: | Yang Wejie Hong Qingyu |
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| Affiliation: | Yang Wejie Hong Qingyu(Dept. of geological Exploration) (Dept. of Postgraduate) |
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| Abstract: | Devonian deposition of the overthrust nappe is the typical compensation deposition of the shore and shallow sea in Upper Yangzi passive continental margin. The cyclical deposition of front shore and near shore facies from turbid water terrigenous debris overlaps from the west to the east in the background of continuous water inflow; The mixed deposition of turbid water and clean water is the filled one of regressive sequences form shelf and off-shore to lagoon; In the period of clean water, it is the carbonate platform deposition of shallow water. According to the calculation of the depositional gradient, the horizontal thrust is about 30 kilometers. |
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| Keywords: | Deposition model Depositional environment Devonian |
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