论文部分内容阅读
含铂基性岩体位于×山纬向复杂构造带东段,严格受东西向断裂控制.岩体出露在前震旦系闪斜片麻岩、斜长角闪岩及条带混合岩等结晶基岩中;呈向北陡倾的透镜状展布,东西长70余公里,中间宽10余公里,两端逐渐变窄,总面积约300平方公里.岩体中段较厚部分,赋存有一定规模的钒、钛磁铁矿矿床,东端零星出现钛磁铁矿小矿体或矿化点,西端即本文所述并需进一步查明的含铂部分.岩体南北两侧为再度侵入的超基性岩体——橄辉岩、辉石岩、角闪石岩,呈透镜状及长条状分布,亦发现有铂矿化.横切岩体南端的一组东西向压性断裂带,使基性-超基性岩遭受破坏,岩石普遍被压碎变成
Platinum-bearing basic rocks are located in the eastern part of the X-trending zonal complex structure and are strictly controlled by the east-west faults. The rock bodies are exposed in the fore-Sinian gneiss, amphibolite and banded mixed rocks Bedrock; was leaning to the north lenticular lens distribution, something more than 70 kilometers long, more than 10 kilometers wide, both ends of the narrowing, with a total area of about 300 square kilometers. A certain scale of vanadium, titanium magnetite deposits, there are sporadic small pieces of titanium magnetite ore or mineralization at the eastern end, that is, the western part of the platinum-containing part described in this article and to be further identified. Of ultrabasic rocks-olivine, pyroxenite, hornblendite, were lenticular and elongated distribution, also found to have platinum mineralization.A series of east-west compressive faults Belts, so that the basic - ultrabasic rocks destroyed, the rock is generally crushed into