内蒙古自治区苏尼特左旗准苏吉花钼矿床,是内蒙古二连-东乌旗成矿带上近几年国土资源地质大调查中新发现的一个规模较大的岩浆热液矿床.该矿区地表覆盖严重,特别是隐伏矿床的地质找矿标志不明显,在找矿过程中综合物化探方法对发现和圈定钼矿体起到了重要作用.化探工作发现,成矿元素Cu、Mo、Pb、Zn、Ag形成3个北西向组合异常,与W、Sn、Ni、Co吻合较好,分布面积大,组分复杂,浓集分带明显.对矿区岩石进行物性测量,发现含矿地质体与围岩存在明显的物性差异.根据1∶10 000高精度磁法测量的含矿花岗岩磁性及其弱磁异常特征,圈定了与成矿密切相关的异常分布范围.1∶10 000激电测量显示岩(矿)石具高极化率、相对低电阻率特性,为本区的重要找矿标志.总结该矿床的地质特征、物化探特征,提出其成矿规律,为本地区下一步找矿工作的开展提供借鉴.%The molybdenum deposit in Zhunsujihua of Sonid Zuoqi, Inner Mongolia, is a large deposit found during the recent years' geological survey in the Erlian-Dongwuqi metallogenic belt.The surface of this area is heavily covered, and the indication of ores is inconspicuous.Hence, the geophysical and geochemical methods have played a major role in the discovery and location of the molybdenum deposit.The geochemical prospecting shows that the ore-forming elements of Cu, Mo, Ph, Zn and Ag have formed three north-west direction abnormal combinations, coinciding with elements of W, Sn, Ni and Co, and have been deposited in a large area with complex components and have clear concentration features.The analysis of physical properties of rocks reveals that there are unambiguous differences between the ores and wall rocks.The high-precision magnetic measurements (1: 10,000) show that the granodiorite is magnetic, and the magnetic-abnormality region related to ore body are located.IP intermediate gradient measurements (1: 10,000) indicate that the ores have high chargeability and low resistivity which are valuable information for mine exploration in this area.The geophysical and geochemical prospecting criteria for this deposit are summarized, and the metallogenic regularity are evaluated,which is an important clue to further prospecting work in the study area.
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