一、基性-超基性杂岩体地质 四川盐边基性-超基性杂岩体位于川滇SN向构造带中段的西缘,侵入在太古代康定杂岩与前震旦系盐边群不整合面上。围岩为混合岩和区域变质岩。岩体呈NW向展布,形态为不规则椭圆,南北长9km,东西宽7.5km,面积约60km~2,岩体自中心向周围形成明显的同 First, the basic - ultramafic complex geology Sichuan Yanbian basic - ultramafic complex located in the central margin of the Sichuan-Yunnan SN-tectonic belt intruded in the Archean Kangding complex and the former Sinian salt side groups Unconformity surface. Surrounding rocks are mixed rocks and regional metamorphic rocks. The rock mass is distributed in the NW direction with an irregular oval shape. The length of the rock mass is 9 km long from north to south and 7.5 km wide from east to west with an area of ​​about 60 km 2. The rock mass forms a clear