青海省金矿综合信息预测

以金矿床密集区为模型单元、金异常密集区为预测单元,建立综合信息找矿模型进行成矿预测。结果表明,该区的金矿大都分布在不同大地构造单元结合部位;处于前震旦纪变质岩系出露及隐伏基底边缘;位于出露和隐伏中酸性岩体及其接触带;位于重磁环线、线线构造交汇处等。首次在青海省开展大型、超大型金矿预测,提出在已知大型、超大型矿床密集区内寻找姊妹矿床的思路。

The Prediction of Synthetic Information of Gold Mineral Resources in South of Shanxi Province

Based on the methodology of mineral resources prognosis of synthetic information, taken the Au deposits concentrated regions as model units and the Au anomaly concentrated regions as prediction units, the gold appraisal using the synthetic information is carried out. In Qinghai Province, it reveals that the Au deposits are mostly distributed on the sits between different tectonic units; and in the edge of the exposed and/or concealed metamorphic basement of the early Sinian Period; in the area of the exposed and concealed acid-instrusions and/or their contacts; and in the localities where the circular and linear anomalies of graviation and magnetism cut across. This is the first time to make this type of prognosis for large and super-large Au deposits in Qinghai Province and the work will provide some clues to geological exploration efforts afterwards in the province.