东天山阿奇山地区定量成矿预测探讨

近年来通过中国地调局在新疆东天山浅覆盖区开展1∶5万化探示范项目,圈定了一批具找矿价值的铅锌银铜为主成矿元素的化探异常,通过异常查证和矿产评价工作,采用化探、物探、探槽工程揭露、钻探验证等综合技术方法,在阿奇山一带浅覆盖地区相继发现了一批以铅锌银铜为主的矿产地,发现了阿奇山火山沉积-叠加热液交代改造型铅锌矿床、屹立火山热液型富银铅矿(黑矿型)、1288高点铜矿点等十余处。通过矿产资源评价工作,目前确定阿奇山铅锌矿资源量达大型矿床规模。屹立富银铅矿以其品位高、埋藏浅、开采经济价值高为特点。阿奇山地区铅锌矿找矿成果揭示了阿奇山一带浅覆盖区有巨大的找矿潜力。

Discussion on Quantitative Metallogenic Prediction of Aqishan Area in East Tianshan Mountain,Xinjiang

In recent years,through the 1:50000 geochemical exploration demonstration project carried out by China Geological Survey Bureau in the shallow overburden area of East Tianshan Mountains,Xinjiang,a number of geochemical anomalies with prospecting value of the ores that are all dominated by lead, zinc, silver and copper have been delineated. Through the mineral resource evaluation work of anomaly verification and follow-up,comprehensive technical methods such as geochemical exploration,geophysical prospecting,prospecting trench and drilling verification have been adopted, and rich prospecting results have been achieved. As a result, a number of lead,zinc, silver and copper-dominated mineral deposits have been discovered in the shallow overburden area of Aqishan Mountain,and more than ten mineral occurrences such as Aqishan volcanic deposition-lead and zinc deposit of structural superposition and hydrothermal transformation stage,Yili silver- rich lead deposits of volcanic hydrothermal type (Kuroko type), copper deposits of 1288 high- point. Through the evaluation of mineral resources, it is determined that the mineral resource amount of Aqishan lead-zinc deposit may be labeled as large sized.Yili Silver-rich Lead deposit is characterized by its high grade, shallow buried depth and exploitation of high economic value.The results of prospecting for lead-zinc deposits in Aqishan area reveal that the shallow overburden area in Aqishan area has exploitation of the potential for large,high economic value.