地质与勘探2017，Vol.53Issue(5)：1001-1009,9.
电阻率层析成像技术在琼东北活动断裂探测中的应用
Application of the Resistivity Tomography Method to Detection of Active Faults Northeast of the Hainan Island
摘要
Abstract
In the northeastern Hainan island, where the 1605 Qiongshan earthquake occurred, there exist many nearly EW-trending and NW-tren-ding active faults, all of which are buried at depth. This work attempted to clarify the locations and geometries of these faults using the resistivity tomo-graphy method, focusing on four NW trending ones, i. e. , the Qiongshan-Puqian fault(F8),F7,F6,and F5. According to previous hydrological bore-hole data, three electrical survey lines were deployed on the north side of the Zhuxi River and LuoDou farm. The results show that regional sedimentary strata can be delineated by apparent resistivity gradient zones on three inversion profiles, respectively,well consistent with the borehole data. Meanwhile, obvious low-resistivity anomalies are present on the four known active faults,and except F7 tending to be controversial in explanation,the other three in-terpreted faults are all confirmed by drilling data.关键词
电阻率层析成像技术/琼东北/琼山-铺前断裂/视电阻率Key words
resistivity tomography method/northeast of Hainan island/Qiongshan-Puqian fault/apparent resistivity分类
天文与地球科学引用本文复制引用
曹新文,马秀敏,胡道功..电阻率层析成像技术在琼东北活动断裂探测中的应用[J].地质与勘探,2017,53(5):1001-1009,9.基金项目
中国地质调查局地质调查项目(DD20160269)和中央级公益性科研院所基本科研业务费专项(YYWF201615)联合资助. （DD20160269）
