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 *

doi:10.11978/j.issn.1009-5470.2011.05.074

Abstract

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 in the basin using the gravity horizontal gradient vector data, which are divided into three ranks, including five first rank faults, eight second rank faults, and 35 third rank faults. Comparing these findings with the results using other geological and geophysical methods such as seismic profiles, we find all results are consistent in terms of the main tectonic structure. However, the gravity horizontal gradient vector method has the advantages of being inexpensive, easy, and intuitive.

Key words: gravity, horizontal gradient vector, Southeast Hainan Basin , basement fault, seismic profile

CLC Number:

P736

LIU Bing,WU Shi-min,LONG Gen-yuan,GUO Xiang-yan,ZENG Guang-dong. 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, 30(5): 74-80.

References

[1] 谢文彦, 张一伟, 孙珍, 等. 琼东南盆地断裂构造与成因机制 [J]. 海洋地质与第四纪地质, 2007, 27(1): 71-78.
[2] 蔡乾忠. 中国海域油气地质学 [M]. 北京: 海洋出版社, 2005: 161-167.
[3] 邱忠建, 龚在升. 中国油气勘探: 第四卷近海油气区 [M]. 北京: 地质出版社, 1999: 911-963.
[4] 孙珍, 钟志洪, 周蒂, 等. 红河断裂带的新生代变形机制及莺歌海盆地的实验数据 [J]. 热带海洋学报, 2003, 22(2): 1-9.
[5] 万志峰, 夏斌, 何家雄, 等. 南海北部莺歌海盆地与琼东南盆地油气成藏条件比较研究 [J]. 天然气地球科学. 2007, 18 (5): 648-652.
[6] 龚再升, 李思田, 谢承俊, 等. 南海北部大陆边缘盆地分布与油气聚集 [M]. 北京: 科学出版社, 1997: 5-24.
[7] 龚再升, 杨甲明, 杨祖序, 等. 中国近海大油气田 [M]. 北京: 石油工业出版社, 1997: 195-223.
[8] 周小鹰, 魏魁生. QDN 盆地层序地层及生储盖组合分析 [J]. 石油与天然气地质, 2000, 21(3): 244-248.
[9] 李绪宣, 朱光辉. 琼东南盆地断裂系统及油气输导 [J]. 中国海上油气, 2005, 17(1): 1-7.
[10] SUN QILING, WU SHIGUO, YAO GENSHUN, et al. Characteristics and formation mechanism of polygonal faults in southeast hainan basin, northern south china sea[J]. Journal of Earth Science, 2009, 20(1): 180-192.
[11] 吴培康. 琼东南盆地半地堑充填模型 [J]. 中国海上油气 ( 地质 ), 1992, 6(6): 1-7.
[12] 于俊峰, 段如泰. 琼东南盆地 2 号断裂东带发育特征及形成机理 [J]. 大地构造及成矿学, 2008, 32(3): 293-299.
[13] 魏魁生, 崔旱云, 叶淑芬, 等. 琼东南盆地高精度层序地层学研究 [J]. 地球科学, 2001, 26(1): 59-66.
[14] 李绪宣, 钟志洪, 董伟良, 等. 琼东南盆地古近纪裂陷构造特征及其动力学机制 [J]. 石油勘探与开发, 2006, 33(6): 713-721.
[15] 李绪宣, 朱光辉. 琼东南盆地断裂系统及其油气疏导特征 [J]. 中国海上油气, 2005, 17(1): 1-7.
[16] 何家雄, 施小斌, 阎贫, 等. 南海北部边缘盆地油气地质特征与勘探方向 [J]. 新疆石油地质, 2007, 28(2): 129-135.
[17] 王家林, 吴建生, 陈冰, 等. 珠江口盆地和东海陆架盆地基底结构的综合地球物理研究 [M]. 上海: 同济大学出版社, 1997: 1-58.
[18] 赵俊猛, 卢造勋, 姚长利, 等. 准噶尔盆地基底断裂的重磁学研究 [J]. 地震地质, 2008, 30(1): 132-143.
[19] 于鹏, 王家林, 钟慧智, 等. 琼东南盆地基底结构综合地球物理研究 [J]. 中国海上油气 ( 地质 ), 1999, 13(6): 443- 450.
[20] HOOD P. Gradient measurement in aeromagnetic surveying[J]. Geophysics, 1965, 30: 891-902.
[21] HOOD P, MCCLURE P J. Gradient measurements in ground magnetic prospecting[J]. Geophysics, 1965, (30): 403-410.
[22] Ramadass G, Rao S, Raja Mohammed, A. Analysis of gravimagnetic anomalies by horizontal gradients[J]. Journal of Earth System Science, 1986, 95(3): 343-349.
[23] 唐仁敏, 张健. 利用重力梯度反演南海西南海盆深部构造 [J]. 地质力学学报, 2006, 12(1): 49-54.
[24] 马宗晋, 高祥林, 宋正范. 中国布格异常水平梯度图的判读和构造解释 [J]. 地球物理学报, 2006, 49(1): 106-114
[25] EDWARDSD J, LYATSKYH V, BROWNR J. Interpretation of gravity and magnetic data using the Horizontal-gradient vector method in the western Canada basin. First Break, 1996, 14(6): 231- 245.
[26] 余钦范, 楼海. 水平梯度法提取重磁源边界位置 [J]. 物探化探计算技术, 1994, 16(4): 363-367
[27] 黄临平, 管志宁. 利用磁异常总梯度模确定磁源边界位置 [J]. 华东地质学院学报, 1998, 21(2): 143-150
[28] 赵希刚, 吴汉宁, 柏冠军, 等. 重磁异常解释断裂构造的处理方法及图示技术 [J]. 地球物理学进展, 2008, 23(2): 414-421.
[29] NOAA/NGDC. ETOPO2V2 Global Gridded 2-minute Database CD-ROM [EB/OL]. [ 2009-12-22 ]. http: //www. ngdc. noaa. gov/mgg/%20global/relier/ETOPO2/ETOPO2v2-2006.
[30] 王家林, 王一新, 万明浩. 石油重磁解释 [M]. 北京: 石油工业出版社, 1991: 3-9.
[31] 杨恬, 吴世敏, 刘海龄, 等. 南海西北部重磁场及其深部构造特征 [J]. 大地构造与成矿学, 2005, 29(3): 364-370.
[32] 杨恬. 南海西北部地球物理场特征及其构造意义 [D]. 广州: 中国科学院南海海洋研究所, 2004: 1-66.
[33] 吴湘杰. 珠江口盆地白云凹陷地质地球物理综合研究 [D]. 广州: 中国科学院南海海洋研究所, 2005: 1-70.

Studying basement fault division in Southeast Hainan Basin of the South China Sea using gravity horizontal gradient vector method

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