物探与化探
物探與化探
물탐여화탐
GEOPHYSICAL AND GEOCHEMICAL EXPLORATION
2015年
3期
506-511
,共6页
宋豪%郭佳%张风祥%倪云鹏%冯磊
宋豪%郭佳%張風祥%倪雲鵬%馮磊
송호%곽가%장풍상%예운붕%풍뢰
频谱激电法%激电异常评价%铅锌银矿%深部隐伏矿体%偶极-偶极装置%V8 多功能电法工作站
頻譜激電法%激電異常評價%鉛鋅銀礦%深部隱伏礦體%偶極-偶極裝置%V8 多功能電法工作站
빈보격전법%격전이상평개%연자은광%심부은복광체%우겁-우겁장치%V8 다공능전법공작참
spectral induced polarization%appraisal of IP anomaly%Pb-Zn-Ag deposit%deep concealed orebody%dipole-dipole device%V8 multifunctional electrical workstation
采用频谱激电(SIP)法对豫西某铅锌银矿区已发现的激电中梯异常进行了评价。利用 V8多功能电法工作站9道轴向偶极—偶极装置采集数据,经过视谱反演后,根据从已知到未知的原则,总结了本区的物探找矿标识,确定了高充电率、中低阻梯度带、中等时间常数,低频率相关系数的视谱参数组合特征。根据地质矿产资料对具有“高—梯度带(中低阻)—中—低”组合特征的频谱激电异常进行了分类评价,并圈定了找矿靶区。根据圈定的找矿靶区进行了钻探验证,结果表明在定位的Ⅰ类异常靶区中寻找到较大规模的深部隐伏矿体,取得了较好的应用效果。
採用頻譜激電(SIP)法對豫西某鉛鋅銀礦區已髮現的激電中梯異常進行瞭評價。利用 V8多功能電法工作站9道軸嚮偶極—偶極裝置採集數據,經過視譜反縯後,根據從已知到未知的原則,總結瞭本區的物探找礦標識,確定瞭高充電率、中低阻梯度帶、中等時間常數,低頻率相關繫數的視譜參數組閤特徵。根據地質礦產資料對具有“高—梯度帶(中低阻)—中—低”組閤特徵的頻譜激電異常進行瞭分類評價,併圈定瞭找礦靶區。根據圈定的找礦靶區進行瞭鑽探驗證,結果錶明在定位的Ⅰ類異常靶區中尋找到較大規模的深部隱伏礦體,取得瞭較好的應用效果。
채용빈보격전(SIP)법대예서모연자은광구이발현적격전중제이상진행료평개。이용 V8다공능전법공작참9도축향우겁—우겁장치채집수거,경과시보반연후,근거종이지도미지적원칙,총결료본구적물탐조광표식,학정료고충전솔、중저조제도대、중등시간상수,저빈솔상관계수적시보삼수조합특정。근거지질광산자료대구유“고—제도대(중저조)—중—저”조합특정적빈보격전이상진행료분류평개,병권정료조광파구。근거권정적조광파구진행료찬탐험증,결과표명재정위적Ⅰ류이상파구중심조도교대규모적심부은복광체,취득료교호적응용효과。
In this paper, the authors used the spectrum of IP method to evaluate the IP anomaly with central gradient array for a Pb?Zn?Ag deposit in western Henan Province. V8 multifunctional electrical workstation using the device of 9?channel axial dipole?dipole was employed to collect data. Based on the principle of " from the known to the unknown" , the authors summarized the geophysical prospec?ting indicators which have the combined characteristics of high charge rate, low resistance transition zone, medium time constant and low frequency correlation coefficient. According to the data of geology and mineral resources, the composite IP anomalies characterized by " high—gradient belt (low resistance)—medium—low" were classified and evaluated, and the prospecting target areas were deline?ated. According to the prospecting target areas, the drilling verification was arranged. The drilling results show that the positioning in the target area of classⅠanomalies led to the discovery of a large?sized concealed orebody in the depth, thus achieving good application effect.