作者单位:Ma Qiang,Zhang Yafeng,Dai Lu,Huang Bingxiong(The Fifth Institute of Geological and Mineral Exploration of Qinghai Province, Bureau of Geology and Mineral Resour1ces ,Xining 810028, China)马强,张亚峰,代璐,黄秉雄(青海省第五地质矿产勘查院,青海西宁810028)Ji Bingyan(The Fifth Institute of Geological and Mineral Exploration of Qinghai Province, Bureau of Geology and Mineral Resour1ces ,Xining 810028, China;School of Earth Sciences and Resources,China University of Geosiences,Beijing 100083, China)姬丙艳(青海省第五地质矿产勘查院,青海西宁810028;中国地质大学地球科学与资源学院,北京100083)Ren Wenkai(The Fourth Institute of Geological and Mineral)任文恺(青海省第四地质矿产勘查院,青海西宁810029)