南祁连裕龙沟铜镍矿床特征及外围成矿预测

Characteristics of Yulonggou Cu-Ni deposit and metallogenic prediction in the surroundings in the southern Qilian mountain area

裕龙沟铜镍矿床(小型)位于南祁连成矿亚带东段满隆山一带。成矿与区内基性-超基性岩体密切相关,属含铂族富铜镍矿床。本文基于对该区以往地质、磁法、电法及地气测量成果资料进行了较系统地分析研究,探索了成因机制,构建了相应成矿模式及找矿模型,并进行了成矿预测。结果表明,在裕龙沟矿区东侧的隆哇塞日登地区具有良好的成矿远景及找矿潜力;南祁连成矿带东段具备加里东晚期后碰撞伸展环境下的岩浆型铜镍硫化物矿床形成条件。

The small sized Yulonggou Cu-Ni deposit located at Manlongshan area in the east section of the South Qilianshan sub-ore belt is closely related to basic-ultrabasic rock distributed in the area.And it is a PGE-bearing Cu-Ni deposit.Based on systematic analysis of data obtained from geological,magnetic,electric and geo-gas survey is discussed genesis of the deposit and built the metallogenic and prospecting models and made prospecting prediction.Longwa Sairideng area on the east side of Yulonggou area is prospective and potential for further prospecting.Metallogenic conditions of magmatic Cu-Ni sulfide deposit under Late Caledonian post collision extensional environment exist in the eastern part of South Qilianshan ore belt.