大功率激电测深法寻找焦家式深部金矿床的应用研究

摘要

大功率的激电测深法在寻找焦家式深部金矿中取得了大量的资料，由多次去除极化单元场的原理对导出大功率激电测深资料进行消除浅部强激电干扰异常，从而突出了深部矿床的激电异常，并利用处理后的激电测深曲线，定量求取了深部金矿蚀变矿化带的顶界面埋深。认为当供电极距达到一定值时，极化电场仍然会反映到地表，因此该方法可以寻找焦家式破碎带蚀变岩型的深部金矿床。%　　Byusinghigh-powerinducedpolarizationsoundingmethodinexploringJiaojiatypedeepgold deposit,alotofinformationhavebeengained.byusingtheprincipleoffieldseveraltimestoremovethe polarizationunit,powerinducedpolarizationsoundinginformationhavebeeneliminatedshallowstrongIP abnormalinterference.Thus,inducedpolarizationanomaliesindeeppartofthisdeposithavebeenout-bursted.ByusingtheIPsoundingcurveprocessing,thedepthoftopinterfaceofdeepgolddepositaltera-tionandmineralizationhasbeengainedquantatively.Itisregardedthatwhentheelectrodedistancerea-chesacertainvalue,thepolarizationelectricfieldwillstillreflecttothesurface.So,byusingthismeth-od,Jiaojiatypefracturezonealterationtypedeepgolddepositscanbefound.