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六、铬铁矿床地质特征简述(一)矿体的分布及其地质规律本区超基性岩侵入体中的铬铁矿床全部产于纯橄榄岩体中,未见产于斜方辉橄岩中的矿体。因此,矿体在超基性岩体中的分布情况与纯橄榄岩体的分布有关,主要集中在纯橄榄岩—斜方辉橄岩岩带中,在橄榄岩—斜方辉橄岩岩带内小的纯橄榄岩体中的矿体很少。在靠近岩体下盘部分的纯橄榄岩—斜方辉橄岩带中的矿体,因为岩
6, a brief description of the geological characteristics of chromite deposits (A) the distribution of ore bodies and geological laws All the chromite deposits in the ultrabasic rocks intrusions in this area are all produced in the dunite bodies, Pluton ore body. Therefore, the distribution of ore bodies in ultramafic rocks is related to the distribution of dunite bodies, mainly in the dunite-orthopyroxene rock belt. In the peridotite-orthopyroxene rock belt There are very few ore bodies in the small dunite bodies. Because of the rock mass in the dunite-orthopyroxene belt near the lower part of the rock mass