Application of integrated geophysical exploration in deep spatial structures: A case study of Jiaodong gold ore concentration area
CHEN Da-Lei1,2(), WANG Run-Sheng1,2(), HE Chun-Yan1,2, WANG Xun1,2, YIN Zhao-Kai3, YU Jia-Bin1,2
1. Shandong Institute of Geophysical & Geochemical Exploration Institute,Jinan 250013,China 2. Shandong Geological Exploration Engineering Technology Research Center,Jinan 250013,China 3. No. 6 Institute of Geology and Mineral Resources Exploration of Shandong Province, Zhaoyuan 265400,China
Jiaodong area is one of the major gold producing areas in China, and the deep prospecting in this area is to seek deep breakthroughs and blind spots at present. With the gold concentration area in Jincheng Town in Laizhou City and Ershilidian Town in Haiyang City as an example and based on the prediction and assessment theory and method of deep gold resources, this study summarizes the deep spatial characteristics and relationships of the Archaeozoic-Mesozoic intrusive rocks, Precambrian metamorphic basement, and the strata in Jiaolai Basin in the area and the deep morphology and characteristics of major ore-controlling structures in the area. To this end, section measurement was carried out using the integrated geophysical exploration of high-precision gravity survey, high-precision magnetic survey, and magnetotelluric sounding. Meanwhile, the obtained gravity, magnetic, and resistivity data were comprehensively researched and analyzed in combination with previous results. This study will provide a basis for the late prospecting prediction of deep gold deposits and related researches of the area.
陈大磊, 王润生, 贺春艳, 王珣, 尹召凯, 于嘉宾. 综合地球物理探测在深部空间结构中的应用——以胶东金矿集区为例[J]. 物探与化探, 2022, 46(1): 70-77.
CHEN Da-Lei, WANG Run-Sheng, HE Chun-Yan, WANG Xun, YIN Zhao-Kai, YU Jia-Bin. Application of integrated geophysical exploration in deep spatial structures: A case study of Jiaodong gold ore concentration area. Geophysical and Geochemical Exploration, 2022, 46(1): 70-77.
Shandong Geophysical and Geochemical Exploration Institute. Results of regional petrophysical property survey in Jiaodong area, Shandong Province [R]. Shandong Geophysical and Geochemical Exploration Institute, 1992.
Ding W X, Yuan F, Li X H, et al. Deep geological structure analysis and metallogenic prediction of Zhonggu ore field in the South section of Ningwu Basin based on gravity and magnetic joint inversion[J]. Acta Geologica Sinica, 2018,92(11):2301-2317.
Tao J, Lei W, Chen S Y, et al. Combining interpretation on the result of magnetotelluric sounding with the geology and the effect[J]. Computing Techniques for Geophysical and Geochemical Exploration, 2013,35(6):651-657.
Liu J L, Li X Z, Zhang Q. The application of gravity-magnetic-magnetotelluric joint inversion to the quantitative interpretation of Yin’E Basin[J]. Geophysical and Geochemical Exploration, 2013,37(5):853-858.
Ma W, Li S B, Xu X X, et al. Application of gravity-magnetic-resistivity joint inversion on the research of the bedrock geological structurein Tianjin area[J]. Geological Survey and Research, 2014,37(3):212-216.
Ou X Y, Li H L, Yang F Q, et al. Application of integrated gravitational,magnetic and electrical geophysical methods to the shalegas geological exploration in southern: a case study of Luzhai, Guizhong depression[J]. Progress in Geophysics, 2019,34(3):1081-1088.