陕西地质
陝西地質
협서지질
GEOLOGY OF SHAANXI
2011年
2期
66-71
,共6页
双频激电%激电异常%视幅频率%视电阻率%工程揭露
雙頻激電%激電異常%視幅頻率%視電阻率%工程揭露
쌍빈격전%격전이상%시폭빈솔%시전조솔%공정게로
dual-frequency IP method%IP anomaly%apparent amplitude frequency%apparent resistivity%engineering exposure
针对工作区地表干燥、基岩裸露、电极接地和供电比较困难等因素，采用双频激电中梯装置方法工作。根据圈定的激电异常组合特征，对激电异常进行了分类和综合解释推断，区分出矿（化）体和含炭质地层干扰异常，以此确定地表工程揭露位置。工程揭露结果与激电异常的解释结果基本一致，说明在一定的条件下，利用激电异常的展布及组合特征区分矿与非矿是可行的。
針對工作區地錶榦燥、基巖裸露、電極接地和供電比較睏難等因素，採用雙頻激電中梯裝置方法工作。根據圈定的激電異常組閤特徵，對激電異常進行瞭分類和綜閤解釋推斷，區分齣礦（化）體和含炭質地層榦擾異常，以此確定地錶工程揭露位置。工程揭露結果與激電異常的解釋結果基本一緻，說明在一定的條件下，利用激電異常的展佈及組閤特徵區分礦與非礦是可行的。
침대공작구지표간조、기암라로、전겁접지화공전비교곤난등인소，채용쌍빈격전중제장치방법공작。근거권정적격전이상조합특정，대격전이상진행료분류화종합해석추단，구분출광（화）체화함탄질지층간우이상，이차학정지표공정게로위치。공정게로결과여격전이상적해석결과기본일치，설명재일정적조건하，이용격전이상적전포급조합특정구분광여비광시가행적。
In consideration of some impact factors of arid surface and outcrops of bedrocks, difficulties of earth connection between electrodes and power supply in the study area, the central gradient array method of dual-frequency IP （induce polarization） method was used in this area. According to the composed features of delineated IP anomalies, classification and comprehensive interpretation of the IP anomalies have been made for distinguishing the interference anomalies from the metallogenic （mineralized） bodies and carbonaceous beds to determinate the positions for surface exploration. The results obtained by geological exploration and interpretation of the IP anomalies are almost the same in delineation of metallagenic bodies and non-mineralized bodies, based on the distribution and the composed features of IP anomalies under some conditions.
