吉林大学学报(地球科学版) ›› 2018, Vol. 48 ›› Issue (4): 1221-1230.doi: 10.13278/j.cnki.jjuese.20170171
郑国磊1, 徐新学1, 李世斌1, 袁航1, 马为1, 叶青2
Zheng Guolei1, Xu Xinxue1, Li Shibin1, Yuan Hang1, Ma Wei1, Ye Qing2
摘要: 重力数据反演是获取地下地质信息的有效手段。本文通过对天津市全区密度和电性参数的统计分析,了解天津市地层的物性分布规律。在对研究区布格重力异常数据采用归一化总水平导数垂向导数(NVDR-THDR)技术处理的基础上,对断裂构造进行了识别,对构造单元进行了划分。然后结合研究区地质资料,应用Geosoft软件中的密度界面反演模块对各构造单元内的密度界面起伏进行反演。并以GOCAD软件为平台,构建了天津市三维可视化地质模型,借助大地电磁(MT)测深点虚拟钻孔,实现了对主要地质界面和构造的标定。最后利用布格重力异常数据拟合同位置地质剖面,验证了模型的可靠性。应用上述反演成果,结合区内地质认识,推断宝坻断裂(F1)、蓟运河断裂(F2)、F3、杨柳青断裂(F4)、F7在中生代后活动性较强,沧东断裂(F6)和天津断裂(F30)在古近纪后活动性较强。
中图分类号:
[1] 于鹏,王家林,吴健生. 二度半长方体组合模型的重力模拟退火反演[J]. 地球物理学报,2007, 50(3):882-889. Yu Peng, Wang Jialin, Wu Jiansheng. An Inversion of Gravity Anomalies by Using a 215 Dimensional Rectangle Gridded Model and the Simulated Annealing Algorithm[J]. Chinese Journal of Geophysics, 2007, 50(3):882-889. [2] 刘彦,吕庆田,李晓斌,等. 基于模型降阶的贝叶斯方法在三维重力反演中的实践[J]. 地球物理学报,2015, 58(12):4727-4739. Liu Yan, Lü Qingtian, Li Xiaobin, et al. 3D Gravity Inversion Based on Bayesian Method with Model Order Reduction[J]. Chinese Journal of Geophysics, 2015, 58(12):4727-4739. [3] 冯旭亮,王万银,刘富强,等. 裂陷盆地基底双界面模式二维重力反演[J]. 地球物理学报,2014, 57(6):1934-1945. Feng Xuliang, Wang Wanyin, Liu Fuqiang, et al. 2D Gravity Inversion of Basement Relief of Rift Basin Based on a Dual Interface Model[J]. Chinese Journal of Geophysics, 2014, 57(6):1934-1945. [4] Renata R C, Peter C H, Iata A S, et al. Basement Structures over Rio Grande Rise from Gravity Inversion[J]. Journal of South American Earth Sciences, 2017, 75:85-91. [5] Mohammad R, Ali M, Ali N K. Fast 3D Inversion of Gravity Data Using Solution Space Prior Conditioned Lanczos Bidiagonalization[J]. Journal of Applied Geophysics, 2017, 136:42-50. [6] 高秀鹤, 黄大年, 孙思源,等. 重力梯度数据协克里金三维反演确定岩脉倾向[J]. 吉林大学学报(地球科学版), 2017,47(2):589-596. Gao Xiuhe, Huang Danian, Sun Siyuan, et al. Identify the Dip Angle of the Dipping Dike Model Based on Cokriging Inversion of Gravity Gradient Data[J]. Journal of Jilin University (Earth Science Edition), 2017, 47(2):589-596. [7] 王丹丹, 李世臻, 周新桂, 等. 大兴安岭地区突泉盆地高精度重磁电特征及其构造格架[J]. 吉林大学学报(地球科学版), 2016, 46(1):240-253. Wang Dandan, Li Shizhen, Zhou Xingui, et al. Lithology Lithofacies Identification and Deep Structure of Tuquan Basin in Great Xinggan Range Area Based on High-Precision Gravity-Magnetic-Electrical Survey[J]. Journal of Jilin University(Earth Science Edition), 2016, 46(1):240-253. [8] 张聪, 石砥石, 张子亚, 等. 云南楚雄盆地西部高精度重磁电特征及基底特征[J]. 吉林大学学报(地球科学版), 2018, 48(3):863-871. Zhang Cong, Shi Dishi, Zhang Ziya, et al. Basement Structure of Western Chuxiong Basin in Yunnan Province:Using High-Precision Gravity-Magnetic-Electrical Survey[J]. Journal of Jilin University (Earth Science Edition), 2018, 48(3):863-871. [9] 马国庆, 孟庆发, 黄大年. 基于重力异常的松辽盆地构造特征识别[J]. 吉林大学学报(地球科学版), 2018, 48(2):507-516. Ma Guoqing, Meng Qingfa, Huang Danian. Structure Identification by Gravity Anomaly in Songliao Basin[J]. Journal of Jilin University (Earth Science Edition), 2018, 48(2):507-516. [10] 张冲, 黄大年, 秦朋波, 等. 重力场向下延拓的三阶Adams-Bashforth公式法[J]. 吉林大学学报(地球科学版), 2017, 47(5):1533-1542. Zhang Chong, Huang Danian, Qin Pengbo, et al. Third-Order Adams-Bashforth Formula Method for Downward Continuation of Gravity Field[J]. Journal of Jilin University (Earth Science Edition), 2017, 47(5):1533-1542. [11] Schneider A, Gerke H H, Maurer T. 3D Initial Sediment Distribution and Quantification of Mass Balances of An Artificially-Created Hydrological Catchment Based on Dems from Aerial Photographs Using GOCAD[J]. Physics and Chemistry of the Earth, 2011, 36(1/2/3/4):87-100. [12] Ni X D, Chen K. Study on the Conversion of GOCAD Models to FLAC3D Models[J]. Applied Mechanics and Materials, 2014, 501/504:2527-2531. [13] 郑国磊,徐新学,李世斌,等. 天津市重力数据三维可视化反演建模研究[J]. 物探化探计算技术,2015, 37(5):571-577. Zheng Guolei, Xu Xinxue, Li Shibin, et al. Constructing 3D Visualization Model With Gravity Data of Tianjin[J]. Computing Techniques for Geophysical and Geochemical Exploration, 2015, 37(5):571-577. [14] 孙先达,王璞珺,索丽敏,等. 松辽盆地火山岩储层三维可视化描述[J]. 吉林大学学报(地球科学版), 2007, 37(6):1272-1278. Sun Xianda, Wang Pujun, Suo Limin, et al. 3D Visualization Description of the Volcanic Rock Reservoir in the Songliao Basin[J]. Journal of Jilin University (Earth Science Edition), 2007, 37(6):1272-1278. [15] 郑国磊, 徐新学, 袁航,等. 基于GOCAD软件的天津市大寺新家园海河教育园区三维可视化建模研究[J]. 地球物理学进展, 2017,32(5):2261-2267. Zheng Guolei, Xu Xinxue, Yuan Hang, et al. 3-Dimensional Visualization Modeling Research on Dasi New Home-Haihe River Education Garden in Tianjin Based on GOCAD Platform[J]. Progress in Geophysics, 2017, 32(5):2261-2267. [16] 林承焰, 王杨, 杨山, 等. 基于CT的数字岩心三维建模[J]. 吉林大学学报(地球科学版), 2018, 48(1):307-317. Lin Chengyan, Wang Yang, Yang Shan, et al. 3D Modeling of Digital Core Based on X-Ray Computed Tomography[J]. Journal of Jilin University (Earth Science Edition), 2018, 48(1):307-317. [17] 张宝一, 杨莉, 陈笑扬, 等. 基于图切地质剖面的区域成矿地质体三维建模与资源评价:以桂西南地区锰矿为例[J]. 吉林大学学报(地球科学版), 2017, 47(3):933-948. Zhang Baoyi, Yang Li, Chen Xiaoyang, et al. Regional Metallogenic Geo-Bodies 3D Modeling and Mineral Resource Assessment Based on Geologic Map Cut Cross-Sections:A Case Study of Manganese Deposits in Southwestern Guangxi, China[J]. Journal of Jilin University (Earth Science Edition), 2017, 47(3):933-948. [18] 李继军,汪启年. 重磁电综合解释方法在天津城市三维地质结构调查中的应用[J]. 物探与化探,2007, 31(5):444-450. Li Jijun, Wang Qinian. The Application of Combined Gravity-Magnetic-Electric Method to the Urban Three-Dimensional Geological Structure Survey in Tianjin[J]. Geophysical and Geochemical Exploration, 2007, 31(5):444-450. [19] 姜夫爵,陈敏,王正科. 天津地区的断裂构造特征[J]. 西北地质,2010, 43(2):143-149. Jiang Fujue, Chen Min, Wang Zhengke. Characteristics of Fault Structure in Tianjin Area[J]. Northwestern Geology, 2010, 43(2):143-149. [20] 李世斌,马为,徐新学,等. 天津市地球物理场特征及基底构造研究[J]. 物探与化探,2015, 39(5):937-943. Li Shibin, Ma Wei, Xu Xinxue, et al. Characteristics of Geophysical Field and Basement Structure of Tianjin[J]. Geophysical and Geochemical Exploration, 2015, 39(5):937-943. [21] 天津市地矿局. 天津市区域地质志[M]. 北京:地质出版社,1992. Tianjin Municipal Bureau of Geology and Mineral Resource. Regional Geology of Tianjin[M]. Beijing:Geological Publishing House, 1992. [22] Wang W Y, Pan Y, Qiu Z Y. A New Edge Recog-nition Technology Based on the Normalized Vertical Derivative of the Total Horizontal Derivative for Potential Field Data[J]. Applied Geophysics, 2009, 6(3):226-233. |
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[2] | 李学元, 何满潮. 天津市热储规划分区和地热井审批系统研发[J]. 吉林大学学报(地球科学版), 2015, 45(2): 546-551. |
[3] | 赵林, 郑义, 毛国柱, 郭华. 天津围海造陆区吹填土氮磷的分布特征[J]. 吉林大学学报(地球科学版), 2015, 45(1): 255-264. |
[4] | 李发文, 冯平, 张超. 天津北三河地区垂向耦合产流模型及应用[J]. J4, 2011, 41(2): 459-464. |
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