|
|
|
| Spatial distribution characteristics of several plutons in northwest Beijing plain |
| Xiao-Dong LEI1,2, Qiao-Ling LI1, Chen LI1, Yuan WANG2, Wei GUAN1, Quan-He YANG1 |
1. Beijing Institute of Geo-exploration Technology,Beijing 100120,China
2. Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China |
|
|
|
|
Abstract The survey of pluton distribution is vital to the study of geothermal system. Using the latest gravity, CSAMT, microtremor survey and previous magnetic data, the authors studied the spatial distribution of several plutons in northwest Beijing. The results show that these plutons have different geophysical characteristics, which suggests that they were formed in different intrusive periods and were developed in different tectonic environments. There are thick dolomite strata of Quaternary period and Jixian System between Huata pluton and Gecun pluton in the southwest of the study area, which may be the main flow channel of underground hot water. The intrusive occurrence of Yangfang pluton exhibits gentle slope in the west and steep slope in the east. The distribution of these plutons is controlled by Nankou Mountain front fault, Nankou-Sunhe fault and Yingbishan fault.
|
|
Received: 13 November 2017
Published: 19 December 2018
|
|
|
|
|
|
|
|
|
| 地层 | 岩性 | 标本
块数 | 电阻率
/(Ω·m) | 密度
/(g·cm-3) | 磁化率
/(10-5SI) | 横波速度
/(m·s-1) | | 第四系(Q) | 松散沉积物 | 95 | 20~80 | 1.75 | — | 150~500 | | 白垩系(K) | 流纹岩、凝灰岩 | 30 | 11.5~21.7 | 2.61 | 239 | 1450~1500 | | 侏罗系(J) | 砾岩、黏土岩、砂岩 | 90 | 71~174 | 2.73 | — | 1400~1600 | | 二叠系(P) | 砂页岩 | 60 | 8~10 | 2.68 | — | 1600~1700 | | 石炭系(C) | 砂岩、泥质岩 | 60 | 8~10 | 2.52 | — | 1600~1700 | | 奥陶系(O) | 灰岩 | 90 | 800~1500 | 2.72 | — | 1700~1800 | | 寒武系(∈) | 灰岩、页岩、泥灰岩 | 120 | 254~608 | 2.72 | — | 1900~2100 | | 青白口系(Qn) | 砂页岩夹碳酸盐岩 | 90 | 136~248 | 2.55 | — | 2200~2500 | | 蓟县系(Jx) | 白云岩夹砂页岩 | 180 | 540~1000 | 2.79 | — | 2200~2500 | | 长城系(Ch) | 白云岩、泥灰岩、页岩 | 120 | 600 | 2.66 | — | 2200~2500 | | 太古宇(Ar) | 片麻岩 | 126 | >700 | 2.75 | 3014 | 2200~2500 | | 花岗岩 | 30 | 1301 | 2.60 | 1150 | / | | 花岗闪长岩 | 60 | / | 2.76 | 2902 | / | | 侵入岩 | 白岗岩 | 30 | 1470 | 2.56 | 306 | / | | 石英二长岩 | 66 | / | 2.63 | 1286 | / | | 闪长岩 | 60 | / | 2.64 | 12 | / |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| [1] |
孙志明, 汪洋, 邓晋福 , 等. 北京地区中生代侵入岩的时间序列及其地质意义[J]. 矿物岩石地球化学通报, 2007,26(3):258-262.
|
| [2] |
程素华, 汪洋 . 北京阳坊岩体元素地球化学特征、成因及构造背景[J]. 地质论评, 2010,56(2):205-214.
|
| [3] |
雷晓东, 胡圣标, 杨全合 , 等. 北京南口—孙河断裂带水热系统特征与成因分析[J]. 地球物理学报, 2017,60(5):1838-1850.
|
| [4] |
焦守涛, 张旗, 金维浚 , 等. 介绍一种寻找隐伏岩体的好方法:岩浆热场法[J]. 岩石学报, 2016,32(2):617-628.
|
| [5] |
张旗, 金维浚, 李承东 , 等. 利用镜质体反射率方法寻找隐伏岩体—岩浆热场应用的一个实例[J]. 大地构造与成矿学, 2015,39(6):1094-1107.
|
| [6] |
张培震, 邓起东, 张竹琪 , 等. 中国大陆的活动断裂、地震灾害及其动力过程[J]. 中国科学: 地球科学, 2013,43(10):1607-1620.
|
| [7] |
陈长云 . 张家口—渤海断裂带分段运动变形特征分析[J]. 地震, 2016,36(1):1-11.
|
| [8] |
柯柏林 . 北京市平原区北部孙河断裂的地热地质特征[J]. 现代地质, 2009,23(1):43-48.
|
| [9] |
张磊, 白凌燕, 蔡向民 , 等. 北京南口—孙河断裂北西段综合物探剖面定位及其活动性研究[J]. 现代地质, 2014,28(1):234-242.
|
| [10] |
雷晓东, 关伟, 郭彤 , 等. 北京昌平高崖口—南口隐伏岩溶水系统地质构造新认识[J]. 地质科学, 2016,51(1):116-127.
|
| [11] |
孟凡兴, 乔勇, 胡鉴 , 等. 可控源音频大地电磁测量在花岗岩型铀矿勘查中的应用[J]. 物探与化探, 2016,40(3) : 488-492, 513.
|
| [12] |
Toksöz M N, Lacoss R T . Microseisms: mode structure and sources[J]. Science, 1968,159(3817):872-873.
|
| [13] |
Okada H . The microtremor survey method. Society of Exploration Geophysicists [C]// Geophysical Monographs Series Vol. 12 Tulsa: SEG, 2003.
|
| [14] |
Okada H . Theory of efficient array observations of microtremors with special reference to the SPAC method[J]. Explor. Geophys., 2006,37(1):73-85.
|
| [15] |
冉伟彦, 王振东 . 长波微动法及其新进展[J]. 物探与化探, 1994,18(1):28-34.
|
| [16] |
Xu P F, Ling S Q, Li C J , et al. Mapping deeply-buried geothermal faults using microtremor array analysis[J]. Geophys. J. Int., 2012,188(1):115-122.
|
| [17] |
北京市地质勘察技术院. 北京地区岩石密度和磁化率测试总结报告[R], 2015.
|
| [18] |
北京市地质局物化探队. 北京平原区北7幅1∶5万电测深工作报告[R], 1987.
|
| [19] |
北京市地质勘察技术院. 北京岩溶水资源勘查评价工程水文地质物探工作成果报告[R], 2012.
|
| [20] |
张先, 赵丽 . 利用磁异常解析方法试验研究城市断裂[J]. 地震地质, 2007,29(2):336-353.
|
| [21] |
鲍亦冈, 刘振峰, 王世发 , 等. 北京地质百年研究[M]. 北京: 地质出版社, 2001: 126-127.
|
| [22] |
王泽龙 . 北京市小汤山地区地温场特征及地下热水成因模式分析[D]. 北京:中国地质大学(北京), 2007.
|
| [1] |
LI Qiao-Ling, ZHANG Hui, LEI Xiao-Dong, LI Chen, FANG Hao, GUAN Wei, HAN Yu-Da, ZHAO Xu-Chen. Analyses of internal structure of slopes using multi-channel transient surface wave exploration and microtremor survey[J]. Geophysical and Geochemical Exploration, 2022, 46(1): 258-267. |
| [2] |
XU Hao, WU Xiao-Ping, SHENG Yong, LIAO Sheng-Zhu, JIA Hui-Tao, XU Zi-Qiao. Application of microtremor survey method in detection of urban land subsidence[J]. Geophysical and Geochemical Exploration, 2021, 45(6): 1512-1519. |
|
|
|
|
