基于重磁异常的新生代丽水—椒江凹陷基底分布特征研究

doi:10.13278/j.cnki.jjuese.20170253

摘要/Abstract

摘要： 丽水—椒江凹陷位于东海陆架盆地西南部，是在中生代残留盆地基础上发育起来的新生代具有典型东断西超特点的断陷，是油气勘探的新区域。区域地质条件复杂、构造叠加、沉积厚度大，地震勘探无法获得较好的反射数据，因此采用面积广、深度大的重磁数据结合地震数据来描述基底构造和火成岩岩性特征，通过重磁数据的阶跃边界识别技术划分区域断裂。丽水—椒江凹陷内断裂呈北东向分布，控制凹陷的形状，且断裂作用使凹陷形成多个小型次凹，断陷特征明显。中—新生代火成岩具有较高的重磁异常，结合质量较好的地震剖面来获得地层、火成岩及岩性分布特征，并建立了多联通域地层的计算公式。区域内中—古生界较为发育，但凹陷内中—新生代火成岩侵入较少，不会对于油气构造造成大的破坏，因此该凹陷具有良好的油气前景。

关键词: 丽水—椒江凹陷, 重磁, 断裂, 多联通域地层, 火成岩

Abstract: Located in the southwestern part of the East China Sea continental shelf basin, the Lishui-Jiaojiang sag is a Cenozoic fault depression with typical east fault and west overpassing characteristics developed on the basis of the Mesozoic residual basins,and it is a new area for oil and gas exploration. Due to the complex geological conditions in this area such as the superimposed structure and the sedimentary thickness, the useful reflection data are not available through seismic exploration. The authors adopted the combination of gravity and magnetic data that are used for a wide area and large depth with seismic data to describe the structure, igneous rock,and lithological characteristics of the basement, and divided the regional faults by using the step boundary recognition technology of gravity and magnetic data. The inner faults in the sag show a north-eastward distribution, which control the shape of the sag. The fault depression is characterized by many small secondary depressions formed by the faults. The Mesozoic and Cenozoic igneous rocks have high gravity and magnetic anomalies. We obtained the strati-graphic, igneous and lithology distribution characteristics from the seismic profile with good quality,and established the formula for the calculation of the mulch-continuous domain strata. The Mesozoic strata are relatively developed in the region, and there are less Mesozoic and cenozoic igneous rocks in the sag, which will not cause the great damages to oil and gas structure. Therefore, this sag has a good oil and prospects.

Key words: Lishui-Jiaojiang sag, gravity and magnetic, fracture, multi connected domain strata, igneous rocks

中图分类号:

P631.1

马国庆, 明彦伯, 黄大年. 基于重磁异常的新生代丽水—椒江凹陷基底分布特征研究[J]. 吉林大学学报(地球科学版), 2018, 48(5): 1493-1500.

Ma Guoqing, Ming Yanbo, Huang Danian. Distribution Characteristics Study of Cenozoic Basement of Lishui-Jiaojiang Sag Based on Gravity and Magnetic Anomalies[J]. Journal of Jilin University(Earth Science Edition), 2018, 48(5): 1493-1500.

参考文献

[1] 杨艳秋,李刚,戴春山. 东海陆架盆地西部坳陷带中生界分布特征及其有利区探讨[J]. 世界地质,2011,30(3):396-403. Yang Yanqiu, Li Gang, Dai Chunshan. Characteristics of Mesozoic Distribution and Discussion on Its Favorable Area in Western Depression Zone of East China Sea Shelf Basin[J]. Global Geology, 2011, 30(3):396-403.
[2] 贾军涛, 郑洪波. 东海的形成与构造演化[J]. 海洋地质动态, 2010,26(1):1-5. Jia Juntao, Zheng Hongbo. Formation and Tectonic Evolution of the East China Sea[J]. Marine Geology Letters, 2010, 26(1):1-5.
[3] 龚建明,李刚,杨传胜,等. 东海陆架盆地南部中生界分布特征与油气勘探前景[J]. 吉林大学学报(地球科学版),2013,43(1):20-27. Gong Jianming, Li Gang, Yang Chuansheng, et al. Hydrocarbon Prospecting of Mesozoic Strata in Southern East China Sea Shelf Basin[J]. Journal of Jilin University (Earth Science Edition), 2013, 43(1):20-27.
[4] 冯晓杰,蔡东升,王春修,等. 东海陆架盆地中新生代构造演化特征[J].中国海上油气:地质,2003, 17(1):33-37. Feng Xiaojie, Cai Dongsheng, Wang Chunxiu, et al. The Meso-Cenozoic Tectonic Evolution in East China Sea Shelf Basin[J]. China Offshore Oil and Gas:Geology, 2003, 17(1):33-37.
[5] 杨艳秋,杨长清,李刚,等. 东海陆架盆地南部构造样式及分布特征[J]. 海洋地质与第四纪地质, 2012,32(3):113-118. Yang Yanqiu, Yang Changqing, Li Gang, et al. Structural Styles and Their Distribution Pattern in the Southern East China Sea Shelf Basin[J]. Marine Geology & Quaternary Geology, 2012, 32(3):113-118.
[6] 王国纯. 东海盆地构造区划及其特征[J]. 台湾海峡,1992,11(3):218-226. Wang Guochun. Tectonic Districts and Its Characteristics in East China Sea Basin[J]. Journal of Oceanography in Taiwan Strait, 1992, 11(3):218-226.
[7] 杨传胜,李刚,杨长清,等. 东海陆架盆地及其邻域岩浆岩时空分布特征[J]. 海洋地质与第四纪地质, 2012,32(3):125-133. Yang Chuansheng, Li Gang, Yang Changqing, et al. Temporal and Spatial Distribution of the Igneous Rocks in the East China Sea Shelf Basin and Its Adjacent Regions[J]. Marine Geology & Quaternary Geology, 2012, 32(3):125-133.
[8] 王毅, 姜亮, 杨伟利.丽水-椒江凹陷断裂构造运动学[J].地质科学,2000,35(4):441-442. Wang Yi, Jiang Liang, Yang Weili. Kinematical Analysis on Faults in the Lishui-Jiaojiang Sag[J]. Scientia Geologica Sinica, 2000, 35(4):441-442.
[9] 蒋玉波,龚建明,曹志敏,等. 东海陆架盆地南部及邻区陆域中生界对比[J]. 海洋地质前沿, 2013, 29(10):1-7. Jiang Yubo, Gong Jianming, Cao Zhimin, et al. Correlation of the Mesozoic Between Southern East China Sea Shelf Basin and Its Adjacent Areas[J]. Marine Geology Frontiers, 2013, 29(10):1-7.
[10] 祝建军, 王琪, 梁建设,等. 东海陆架盆地南部新生代地质结构与构造演化特征研究[J]. 天然气地球科学, 2012, 23(2):222-229. Zhu Jianjun, Wang Qi, Liang Jianshe, et al. Cenozoic Geological Structure and Tectonic Evolution of Southern East China Sea Shelf Basin[J]. Natural Gas Geoscience, 2012, 23(2):222-229.
[11] 陈国俊, 李超, 梁建设,等. 东海陆架盆地瓯江凹陷明月峰组沉积相及沉积特征分析[J]. 天然气地球科学, 2011, 22(5):760-769. Chen Guojun, Li Chao, Liang Jianshe, et al. Sedimentary Facies of Mingyuefeng Formation in Oujiang Sag, East China Sea Basin[J]. Natural Gas Geoscience, 2011, 22(5):760-769.
[12] 杨长清, 杨传胜, 李刚,等. 东海陆架盆地南部中生代构造演化与原型盆地性质[J]. 海洋地质与第四纪地质, 2012,32(3):105-111. Yang Changqing, Yang Chuansheng, Li Gang, et al. Mesozoic Tectonic Evolution and Prototype Basin Characters in the Southern East China Sea Shelf Basin[J]. Marine Geology & Quaternary Geology, 2012, 32(3):105-111.
[13] 刘泽,戴黎明,李三忠,等. 东海陆架盆地南部中生代成盆过程的数值模拟[J]. 海洋地质与第四纪地质,2017,37(4):167-180. Liu Ze, Dai Liming, Li Sanzhong, et al. Numerical Simulation of Mesozoic Tectonic Processes in the Southern Part of East China Sea Continental Shelf Basin[J]. Marine Geology & Quaternary Geology, 2017, 37(4):167-180.
[14] Ma Guoqing, Huang Danian, Cai Liu. Step-Edge Detection Filters for the Interpretation of Potential Field Data[J]. Pure and Applied Geophysics, 2016, 173(3):795-803.
[15] 梁若冰.东海陆架盆地南部中生界分布浅析[J].海洋石油,2012,32(3):18-22 Liang Ruobing. The Distribution of Mesozoic in the Southern Part of East China Sea Shelf Basin[J]. Offshore Oil, 2012, 32(3):18-22.
[16] 何家雄,张伟,颜文,等.中国近海盆地幕式构造演化及成盆类型与油气富集规律[J]. 海洋地质与第四纪地质, 2014,34(2):121-134. He Jiaxiong, Zhang Wei, Yan Wen, et al. Episodic Tectonic Evolution Basin Types and Hydrocarbon Accumulation in Chinese Marginal Basins[J]. Marine Geology and Quaternary Geology, 2014, 34(2):121-134.
[17] Parker R L. The Rapid Calculation of Potential Ano-malies[J]. Geophysical Journal International, 1973, 31(4):447-455.
[18] 高德章.东海陆架盆地岩石密度与磁性[J].上海国土资源, 1995(2):38-45. Gao Dezhang. Density and Magnetic of Rocks in the East Sea Shelf Basin[J]. Shanghai Geology, 1995(2):38-45.

相关文章 15

[1]	蔡攀, 谢风猛, 刘海宁, 苗元梓, 蔡来星. 济阳坳陷义东地区中—古生界古潜山断控成山过程及其控藏规律 [J]. 吉林大学学报(地球科学版), 2026, 56(2): 435-452.
[2]	李新琦, 霍飞宇, 赵志平, 崔普媛, 李祺. 渤中凹陷中生界火山岩规模性裂缝储层特征及成因#br#[J]. 吉林大学学报(地球科学版), 2026, 56(2): 483-496.
[3]	张文, 王骏城, 陈俊淇, 崔洪海, 孔祥礼, 郭涛, 王明, 王佳, 张书睿, 孙琦, 张涵, . 长白山山脉基本地质概况与火成岩崩滑灾变类型及机制[J]. 吉林大学学报(地球科学版), 2026, 56(2): 568-583.
[4]	毛子雄, 侯贺晟, 周建波, 符伟. 佳木斯地块—那丹哈达地体近地表速度结构[J]. 吉林大学学报(地球科学版), 2026, 56(1): 219-228.
[5]	蔡嵩, 郑金云, 李振升, 舒梁锋, 靳瑶瑶, . 珠江口盆地番禺低隆区构造调控下断陷湖盆源—汇响应特征 [J]. 吉林大学学报(地球科学版), 2025, 55(5): 1420-1433.
[6]	孙敬雯, 吕子强, 孔庆翰, 唐泽豪, 邱俊辉, 刘珈君. 基于背景噪声成像的沂沭断裂带及邻区波速变化[J]. 吉林大学学报(地球科学版), 2025, 55(4): 1361-1371.
[7]	郝国丽, 蒋迪娅, 许风光, 张昊, 金艳, 刘洋. 珠江口盆地恩平凹陷西南部火山岩相和火山机构特征及其分布控制因素[J]. 吉林大学学报(地球科学版), 2024, 54(6): 1951-1967.
[8]	马凌, 单玄龙, 向绪洪, 郝国丽, 张朋霖, 闫博, 衣健. 珠江口盆地白云凹陷裂陷期断裂活动特征与动力学机制[J]. 吉林大学学报(地球科学版), 2024, 54(6): 1968-1985.
[9]	孙旭, 孙永河, 郑金云, 蔡嵩, 张慧敏, 李明, 魏建光. 珠江口盆地陆丰X洼断裂系统变形机制及其控洼-控源作用[J]. 吉林大学学报(地球科学版), 2024, 54(6): 1986-1997.
[10]	唐贤君, 钟荣全, 陈永军, 何新建, 代勇. 东海盆地西湖凹陷斜坡区平湖断裂带分段性及其成因机制[J]. 吉林大学学报(地球科学版), 2024, 54(6): 2047-2060.
[11]	孔庆翰, 吕子强, 张广伟. 基于密集台阵的辽宁老虎台矿区微震事件重定位[J]. 吉林大学学报(地球科学版), 2024, 54(5): 1685-1695.
[12]	李勇霖, 倪智勇, 李晓光, 韩子敬, 张威, 安川. 鄂尔多斯盆地杭锦旗地区断控气藏差异[J]. 吉林大学学报(地球科学版), 2024, 54(3): 773-783.
[13]	许凤鸣. 受油源断裂控制的不同层位油气运聚空间分布部位预测方法及其应用 [J]. 吉林大学学报(地球科学版), 2024, 54(2): 461-469.
[14]	罗新刚, 王万银, . 基于正则化思想的tilt-Euler法在边缘深度反演中的应用 [J]. 吉林大学学报(地球科学版), 2024, 54(2): 633-646.
[15]	崔中良, 周家喜, 罗开. 赣南兴国—宁都萤石成矿带分形结构及成矿与找矿前景#br#[J]. 吉林大学学报(地球科学版), 2024, 54(1): 108-124.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed