河南省新县南部金矿地球化学特征及找矿标志

Soil Geochemical Characteristics and Indicator of Gold Deposits in Southern Xinxian,Henan Province

为加强河南新县南部金矿的找矿工作,进行了1∶50000水系沉积物测量,在王湾一带圈定了较好的Au异常区。在深入了解该异常区地质特征后,开展1∶10000土壤地球化学测量,进一步发现其中有10处综合异常区,圈出14条金矿体。地球化学特征研究表明,区元素异常以Au、Ag为主元素(成矿元素),伴生Cu、Pb、Sb、Bi、W等元素异常。Au、Ag异常内带发育,浓集中心明显,与伴生元素异常相互套合或叠合程度高。

In order to strengthen the prospecting for the gold deposit in southern Xinxian,Henan province,a 1∶50000 river sediment survey was carried out,and a good Au anomaly area was delineated in the Wangwan area.After in-depth understanding of the geological characteristics of the anomaly area,a 1∶10000 soil geochemical survey was carried out,and 10 comprehensive anomaly areas were further discovered and 14 gold ore bodies were circled.The study of geochemical characteristics shows that Au and Ag are the main elements(mineralizing elements)in the elemental anomalies in the area,with associated elemental anomalies such as Cu,Pb,Sb,Bi,and W.Au and Ag are abnormally developed in the inner zone,and the concentration center is obvious,and they overlap or overlap with the accompanying elements to a high degree.