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一、岩体地质概况新街岩体位于米易县城北八公里,新街附近。它是一个小型的、但具有明显分异韵律的单斜层状岩体,长约1.2公里,宽在0.5—0.8公里,面积约一平方公里,总体总厚约580米,四周和底板都为玄武岩包围。据接触带玄武岩的角岩化及岩体边缘形成3—6米厚的边缘相细粒辉长岩(照片1),可以证明岩体侵入玄武岩。层状系列主要由超基性出到辉绿辉长岩
First, rock geology Overview Xinjie rock body is located eight meters north of Miyi County, near the New Street. It is a small, but obviously divergent rhythm of monoclinic bedrock, about 1.2 km long, 0.5-0.8 km wide, an area of about one square kilometer, the overall total thickness of about 580 meters, surrounded by the floor and are Surrounded by basalt. According to the contact with the basalt rock and the rock edge of the formation of 3-6 meters thick edge of the fine-grained gabbro (photo 1), we can prove that rock intrusion basalt. Layered series mainly from ultrabasic to Hui green gabbro