| 重力水平梯度矢量法在琼东南盆地基底断裂划分上的应用 |
| |
| 引用本文： | 刘兵,吴世敏,龙根元,郭翔艳,曾广东.重力水平梯度矢量法在琼东南盆地基底断裂划分上的应用[J].热带海洋学报,2011(5). |
| |
| 作者姓名： | 刘兵 吴世敏 龙根元 郭翔艳 曾广东 |
| |
| 作者单位： | 中国科学院边缘海重点实验室中国科学院南海海洋研究所;中国科学院研究生院;中山大学地球科学系;中国石油化工股份有限公司上海海洋油气分公司; |
| |
| 基金项目： | 国家重点基础研究发展计划项目(2007CB411706-05); 中国石油化工股份有限公司委托项目(5220292) |
| |
| 摘 要： | 基底断裂与盆地是一对相互影响的伴生构造,断裂活动控制盆地内沉积填充和构造样式以及后期资源的分布。本文利用琼东南盆地2′×2′的自由空间重力异常,在进行地形校正、布格异常校正得到布格重力异常的基础上求得重力水平梯度矢量。尝试利用重力水平梯度矢量对基底断裂进行划分并取得良好效果:在盆地基底划分出48条断裂,并将其分为3个等级,其中一级断裂5条,二级断裂8条,三级断裂35条;将确定的断裂与其他地质、地球物理方法(地震剖面)确定的断裂进行比较,发现在主要格架上具有一致性;重力水平梯度矢量法与其他解释方法比较具有成本低廉、方法简单、结果直观的优点。
|
| 关 键 词： | 重力 水平梯度矢量 琼东南盆地 基底断裂 地震剖面 |
Studying basement fault division in Southeast Hainan Basin of the South China Sea using gravity horizontal gradient vector method |
| |
| LIU Bing,WU Shi-min,LONG Gen-yuan,GUO Xiang-yan,ZENG Guang-dong .Key Laboratory of Marginal Sea Geology,South China Sea Institute of Oceanology,CAS,Guangzhou ,China,.Graduate University of CAS,Beijing.Studying basement fault division in Southeast Hainan Basin of the South China Sea using gravity horizontal gradient vector method[J].Journal of Tropical Oceanography,2011(5). |
| |
| Authors: | LIU Bing WU Shi-min LONG Gen-yuan GUO Xiang-yan ZENG Guang-dong Key Laboratory of Marginal Sea Geology South China Sea Institute of Oceanology CAS Guangzhou China Graduate University of CAS Beijing |
| |
| Institution: | LIU Bing1,2,WU Shi-min1,3,LONG Gen-yuan1,GUO Xiang-yan1,ZENG Guang-dong4 1.Key Laboratory of Marginal Sea Geology,South China Sea Institute of Oceanology,CAS,Guangzhou 510301,China,2.Graduate University of CAS,Beijing 100039,3.Department of earth sciences,Sun Yat-Sen University,Guangzhou 510275,4.Institute of SINOPEC Shanghai Offshore Oil and Gas Company,Shanghai 200120 |
| |
| Abstract: | Basement fault is an associated structure with the basin.The deposition in a basin and the tectonic style as well as the distribution of resources are determined by basement faults.On the basis of 2-minute Free Air Gravity anomaly database in the Southeast Hainan Basin of the South China Sea,the Bouguer anomaly is obtained after topography correction and Bouguer correction.The gravity horizontal gradient vector data are obtained from the analysis of the Bouguer anomaly.We are able to find 48 basement faults... |
| |
| Keywords: | gravity horizontal gradient vector Southeast Hainan Basin basement fault seismic profile |
| 本文献已被 CNKI 等数据库收录！ |
|
