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在川滇黔接壤区宁南至巧家、鲁甸一带发育与区域地质背景不协调的NS轴向透镜状的茂租环块构造,是一个遥感影像异常区.环块区与澄江期的火山喷发中心、晚震旦世至早古生代的凹陷区以及晚二叠世玄武岩的喷溢中心耦合,反映了NS向甘洛-小江深大断裂上的一个长期构造活跃区.环块构造是深部凹陷构造单元、上覆巨厚的岩层单元、构造变形破碎异常区和地球化学异常块体等因素在遥感影像上的综合显示,可作为该区进行铅锌矿床定位预测的遥感解译标志之一.
An NS axial lenticular Maozuli ring structure, which is not coordinated with the regional geological background, is developed in the area from Ningnan to Qiaojia and Ludian in the border area of Sichuan, Yunnan and Guizhou, and is an anomalous area of remote sensing image. The eruption center, the coupling of the late Sinian to Early Paleozoic depressions and the Late Permian basalt spurt center reflects a long-term tectonically active area on the deep NS-trending Gaoluo-Xiaojiang fault.The ring-block structure is a deep depression The synthetical display of tectonic units, overlying thick rock units, tectonic deformation and crustal anomaly zones and geochemical anomalous blocks on remote sensing images can be used as one of the remote sensing interpretations for the prediction of lead-zinc deposits in this area.