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| 珠江口盆地白云凹陷陆坡区10.5 Ma以来的沉积体系 | |
| 引用本文： | 武强,解习农,邱燕,刘明玲.珠江口盆地白云凹陷陆坡区10.5 Ma以来的沉积体系[J].海洋地质与第四纪地质,2008,28(2):1-6. |
| 作者姓名： | 武强 解习农 邱燕 刘明玲 |
| 作者单位： | 1. 中海石油(中国)有限公司,天津分公司,天津,300452 2. 中国地质大学(武汉)资源学院,武汉,430074 3. 广州海洋地质调查局,广州,510760 4. 中海石油基地集团采技服研究院,天津,300452 |
| 基金项目： | 国家重点基础研究发展计划(973计划) , 中国地质调查局地质调查项目 |
| 摘 要： | 通过对珠江口盆地白云凹陷陆坡区10.5Ma以来的地震相分析,共识别出席状平行亚平行地震相、透镜状前积地震相、深切河谷地震相、帚状地震相和杂乱地震相,不同的地震相分别代表不同的沉积体系类型。综合所识别的地震相类型,分析了陆架边缘下切谷、浊积扇和陆架边缘三角洲3种主要的沉积体系及其配置关系。物源供给是影响陆坡区沉积体系发育的最重要因素,是沉积体系发育的物质基础,海平面变化和构造运动为沉积体系发育提供了可容纳空间,3种影响因素共同影响了陆坡区沉积体系的发育。 |
| 关 键 词： | 沉积体系 陆坡区 白云凹陷 10.5Ma 珠江口盆地 |
| 文章编号： | 0256-1492(2008)02-0001-06 |
| 修稿时间： | 2007年11月10 |
ANALYSIS OF DEPOSITIONAL SYSTEM OF CONTINENTAL SLOPE IN BAIYUN DEPRESSION IN THE PEARL RIVER MOUTH BASIN SINCE 10.5 MA |
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| WU Qiang,XIE Xi-nong,QIU Yan,LIU Ming-ling.ANALYSIS OF DEPOSITIONAL SYSTEM OF CONTINENTAL SLOPE IN BAIYUN DEPRESSION IN THE PEARL RIVER MOUTH BASIN SINCE 10.5 MA[J].Marine Geology & Quaternary Geology,2008,28(2):1-6. | |
| Authors: | WU Qiang XIE Xi-nong QIU Yan LIU Ming-ling |
| Abstract: | Five seismic facies were identified including parallel or sub-parallel seismic facies,lenticular foreset seismic facies,incised-valley seismic facies,brush-shaped seismic facies and chaotic seismic facies through the seismic facies analysis of Baiyun depression in the Pearl River Mouth basin since 10.5 Ma and each of them standed for different kinds of depositional systems.Ulteriorly the chief depositional systems and their setup relation were analysed including shelf-margin incised-valley,turbidite fans and shelf-margin delta.At last we think the main influential factors are sediment supply,sea level change and tectonic movement.Sediment supply was the most important factor to influence depositional system upgrowth,which was the substance base.Sea level change and tectonic movement provided accommodation space for depositional system upgrowth. |
| Keywords: | depositional system slope area 10 5 Ma Baiyun depression |
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