文章摘要
王艳.青海也日更金铜镍多金属矿地质特征与找矿远景[J].矿产勘查,2019,(4):845-853
青海也日更金铜镍多金属矿地质特征与找矿远景
Aracteristics and prospecting potentiality of Yerigeng Au-Cu-Ni polymetallic ore field in Qinghai Province
投稿时间:2018-08-31  
DOI:
中文关键词: 金铜镍多金属  矿化特征  矿化蚀变  找矿远景  也日更
英文关键词: Au-Cu-Ni polymetallic,mineralization characteristic,alteration, geophysical and geochemical prospecting anomaly,exploration prospect
基金项目:中国地质调查局项目(编号:12120114081401)和青海省地质勘查基金项目(编号:[2016]89)联合资助。
作者单位
王艳 青海省有色第三地质勘查院,西宁 810012 
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中文摘要:
      青海省海西地区是中国西北一个非常重要的金属及非金属成矿区。也日更金铜镍多金属矿床周边古老变质岩系发育,华里西期、印支期构造岩浆活动频繁并且强度大,构造作用较复杂,近EW向和NWW向断裂构造及受其控制的中酸性脉岩发育,围岩蚀变现象明显,局部地段显示了较为明显的金、铜、镍等多金属矿化,同时有1∶50000及1∶25000化探综合异常显示,1∶5000地物化剖面异常清晰,最后通过探槽工程揭露,显示出该区具有较好的成矿远景。
英文摘要:
      Haixi area of Qinghai is a very important metallic and non-metallic mineralization area in the northwest of China. Old metamorphic series are widely developed in Yerigeng Au-Cu-Ni polymetallic ore field and surrounding area.It corresponds frequent and intense magmatic activity,complex structures in Variscan and Indosinian period.The nearly EW-trending faults and NWW- trending faults structure and intermediate-acidic vein rocks which are controlled by the fault structure are well developed.The phenomenon of wall rock alterrtion is obvious,and Au-Cu-Ni polymetallic mineralization is obvious locally.Geochemical prospecting works at 1∶50,0 and 1Haixi area of Qinghai is a very important metallic and non-metallic mineralization area in the northwest of China. Old metamorphic series are widely developed in Yerigeng Au-Cu-Ni polymetallic ore field and surrounding area.It corresponds frequent and intense magmatic activity,complex structures in Variscan and Indosinian period.The nearly EW-trending faults and NWW- trending faults structure and intermediate-acidic vein rocks which are controlled by the fault structure are well developed.The phenomenon of wall rock alterrtion is obvious,and Au-Cu-Ni polymetallic mineralization is obvious locally.Geochemical prospecting works at 1∶50,0 and 1∶25,0 scale shows clear anomalies,and composite geophysical and geochemical prospecting section at 1∶5,0 shows clear anomalies.At last,the obvious mineralization parts are revealed through exploratory trenching.It appears that area has favorable metallogenic prospect.25,0 scale shows clear anomalies,and composite geophysical and geochemical prospecting section at 1∶5,0 shows clear anomalies.At last,the obvious mineralization parts are revealed through exploratory trenching.It appears that area has favorable metallogenic prospect.
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