| 盆地演化过程中的扇三角洲 |
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| 引用本文： | 文琼英,张川波,吴培康.盆地演化过程中的扇三角洲[J].吉林大学学报(地球科学版),1990(4). |
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| 作者姓名： | 文琼英 张川波 吴培康 |
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| 作者单位： | 长春地质学院能源系
(文琼英)，长春地质学院地质系
(张川波)，长春地质学院地质系(吴培康) |
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| 摘 要： | 作为构造活动和古地理演变最为敏感产物的三角洲系列(泛指河流三角洲和扇三角洲)广布于不同类型的构造盆地中,盆缘坡度常是构造活动的表现。地貌,扇三角洲的堆叠及其几何学和与之共生的层序组合就成为指示构造活动的一种物理参数。裂谷演化过程中,形成扇三角洲—浊流沉积—辫状河三角洲组合的特殊充填序列。前陆盆地则发育着由深变浅的次深海(或深海)—浅海浊积扇/扇三角洲—海陆过渡—陆上磨拉石组合。走滑拉分盆地中构成特有的歪斜扇体,普遍为向上变粗和变粗又变细的层序。故可以此作为判别古构造性质的物理参数之一。
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| 关 键 词： | 扇三角洲 裂谷 前陆 走滑拉分盆地 |
FAN-DELTA IN AN EVOLVING BASIN |
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| Wen Qiongying Zhang Chuanbo Wu Peikang.FAN-DELTA IN AN EVOLVING BASIN[J].Journal of Jilin Unviersity:Earth Science Edition,1990(4). |
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| Authors: | Wen Qiongying Zhang Chuanbo Wu Peikang |
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| Institution: | Department of Geology |
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| Abstract: | The deltaic series (here it refers the braided river delta and fan-delta) found in different structural basins are the sensitive indicators of tectonic movement and palaeogeographical evolution.The slope of the basin-bank serves as mark of tectonic activity,and the fan-delta with its superposition, geometry and assembly of sedimentary sequence provides as physical parameters of tectonic movement.Special sequence of the fan-delta-turbidite-river delta will be formed in rift basins.The assembly of the subabyssal-shallow marine turbidite fan/fan delta-marine-continental interbed-continental molasse sequence occured in the foreland basins.The fan bodies with their distorted geometry and special sequence assembly provides as a physical parameter of the strike-slip pull apart basins. |
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| Keywords: | Fan-delta rift foreland strike-slip pull apart basin |
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