山东省招远市玲珑地区九曲金矿区采空区深部预测——构造蚀变岩相地质测量与深部找矿

Deep prognosis for goaf of mining area of Jiuqu in Linglong area,Shandong Province,China

利用采空区的生产资料,开展矿化蚀变带剖面实测,建立石英脉和蚀变岩2种类型金矿的构造蚀变分带关系,形成野外可观察的矿化蚀变图例。通过地表结合井下构造蚀变岩填图,把找矿标志从矿脉和近矿蚀变岩扩大为全部蚀变岩石乃至弱钾化花岗岩,使找矿预测目标从1~2m扩大到几十米至几百米,扩大了几倍甚至几十倍。用构造蚀变岩相地质测量与深部找矿方法,在山东九曲地区采空区之下预测获得了验证。

Taking use of pre-existing production materials about alteration mineralization, the relationship of tectonic-alteration zoning between quartz vein type gold deposit and altered rock type gold deposit is built, and the regularity of mineralization and alteration zoning is established. Mineralization alteration legends which could be observed in the field are formed as well. Through tectonic altered rock mapping, prospecting indicators are enlarged from mineralization demonstration to altered rock, even to the weak potassic altered granite, which makes prospecting prognosis target expanded by several times or even scores of times . Expanding exploration target are proved at Jiuqu regions. Prediction in goat of Jiuqu area was tested by tectonic altered lithofacies geological survey and deep prospecting method.