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元古界地层分布着一系列基性和超基性岩体.金红石矿化强度与该岩体的变质作用及后期成矿作用的改造有关.这些岩体集中在某稳定地块中,并伴有吕梁期及燕山期花岗岩浆活动.其围岩为应山群及红安群,主要由白云母石英片岩、钠长石白云母片岩及白云母奥长石片麻岩组成.其中含金红石榴辉岩-榴闪岩规模较小,多呈栅状构造或透镜状及球状体分布(图1),其金红石(原生矿)一般不具工业价值;而含金红石变辉长辉绿岩体,其规模远比前者大,长轴一般由数百米到数千米,呈岩墙、岩盆和岩席产出,往往可形成巨大的矿床,其时代可能属吕梁晚期,而前者为吕梁早期.此外,区内尚有混
A series of basic and ultrabasic rocks are distributed in the Proterozoic strata, and the intensity of rutile mineralization is related to the metamorphism of the rock mass and the alteration of later metallogenesis. These rocks are concentrated in a stable mass There are Lvliang Period and Yanshanian granite magmatism.The surrounding rocks are Yingshan group and Hongan group, which are mainly composed of muscovite quartz schist, albite muscovite schist and muscovite ophiolite gneiss, The gabbro-gabbro-amphibolite is relatively small in scale and mostly has a grid-like structure or lenticular and spheroidal distribution (Figure 1). The rutile (primary ore) generally has no industrial value. However, the rutile- Its scale is far larger than the former, the long axis is usually from a few hundred meters to several kilometers, was dikes, rock basins and mats output, can often form a huge deposit, its age may belong to late Luliang, while the former is Luliang early In addition, the area is mixed