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桐柏老洞坡银异常带(银矿点),是区测队1:5万化探普查时发现的。经过我队评价后不但证实了该异常带的存在和其找矿意义,而且地表工程还见到了一部分工业矿体,品位较高,又具有一定的规模,值得进一步钻探验证。老洞坡银矿体的发现,说明了歪头山组地层上、中、下三部均为含矿层。老洞坡银矿体的赋存特点,乃受一定地层(歪头山组下部第二岩性段)和构造控制。这在找矿方向上可能是个突破性的进展,查明该矿床的原生地珠化学异常特征,将有助于矿床的评价与开发。因此,将老洞坡银矿床与破山银矿床的地质地珠化学特征进行综合分析对比,具有实际的找矿意义。
Tongbai old Dongpo silver anomaly belt (silver mine site), is the regional survey team 1: 50000 geophysical survey found. After the evaluation of our team not only confirmed the existence of the anomaly and its prospecting significance, but also part of the surface engineering to see the industrial ore body, high grade, but also has a certain scale, it is worth further drilling verification. The discovery of the old Dongpo silver ore body shows that the upper, middle and lower strata of the Waitou Mountain Formation are all ore-bearing. The occurrence of the old Dongpo silver ore body is controlled by a certain strata (the second lithology in the lower part of Waitoushan Formation) and structural control. This may be a breakthrough in prospecting direction. The identification of the primary pearl chemical anomalies in this deposit will be helpful for the evaluation and development of the deposit. Therefore, the comprehensive analysis and comparison of geo-pearl chemical characteristics between LaoDongpo silver deposit and that of the Po-shan silver deposit have practical prospecting significance.