RRI方法在EH-4数据解释中的应用

APPLICATION OF RRI METHOD IN INTERPRETATION OF EH-4 DATA

RRI(Rapid Relaxation inversion)方法是一种新的MT(Magnetotelluric)反演方法。文章介绍了RRI方法的基本理论,并应用该方法对不同的反演模式和不同的初始模型所得的反演结果分别进行对比,结果表明,二维RRI方法具有快速、稳定,反演效果好等特点。并应用二维RRI方法对内蒙古某矿山EH-4实测数据进行反演,结果表明该方法快速、实用,反演结果符合地质规律,便于地质解释。

RRI （rapid relaxation inversion） method is a new MT （magnetotelluric） inversion method. Basic theory of RRI applied to MT has been simply described. According to results of TE mode inversion and TM mode inversion, and inversion results of different initial models, it is found that RRI method has extremely stability and higher efficiencies rather than other conventional inversion method. 2D RRI method has been applied to analyze EH - 4 origin data acquiring from an ore mine in Inner Mongolia province. Inversion results are accorded with geology practice, and very convenient to interpret geology regularity.