地质雷达在浅埋硅化木探测中的应用  

Application of GEO-Radar in Detecting the Shallow Buried Silicified Woods

作　　者：杨庆乐[1] 李萍[1] 刘乐军[1] 周庆杰[1] 

机构地区：[1]国家海洋局第一海洋研究所,山东青岛266061

出　　处：《海岸工程》2014年第3期70-78,共9页Coastal Engineering

基　　金：国家海洋公益性行业科研专项--我国典型海岛地质灾害监测与预警示范研究(201005010)

摘　　要：硅化木具有极高的收藏价值和科研价值，但浅埋硅化木的探测仍无较好手段。在即墨马山地区首次使用物探手段进行浅埋硅化木的探测研究。在前期高密度电法探测的基础上，对电阻率异常点进行地质雷达复测，结合区域地质背景和硅化木的产出特征，硅化木异常多表现为小的抛物线突起，且异常深度集中在2～6m，最后对异常点进行钻孔验证，结果表明地质雷达可有效探测浅埋硅化木。The shallow buried silicified woods have a high collectible and scientific value , but there is no effective way to detect them . The geophysical exploration method is firstly used in the Ma Mountain of Jimo City for the investigation of shallow buried silic-ified woods .On the basis of previous surveys with high density electrical method ,the abnormal points of electrical resistivity are re-detected by using Geo-radar .Considering the regional geological background and the characteristics of silicified wood occurrence , the abnormalities generated by buried silicified woods appear often as small parabola-shaped convexes and mostly concentrate in a 2~6 m depth .These abnormal points are finally tested through drilling holes and the results indicate that Geo-radar can effective-ly detect the shallow buried silicified woods .

关 键 词：硅化木 地质雷达 马山 

分 类 号：P627[天文地球—地质矿产勘探]