摘要
通过对山东省金成矿带深部地质勘查成果、科研成果资料的综合分析研究,认为该区的成矿规律为:第一矿化富集带绝大部分在-400m标高以上尖灭,经过100～200m(垂深)左右的无矿间隔,第二矿化富集带出现,矿体形态更趋简单,矿体延深大于延长,金品位偏低,倾角渐趋平缓。根据已知矿体产出规律,找矿方向应放在Ⅰ级控矿断裂控制的已知矿床深部主矿体两翼并在深部布设探矿工程;对勘查时期的深部远景控制资料要深入研究,充分利用其敏感点,用以推断深部矿体再现的可能性;应用物化探工作对构造变化等特征进行探测,以提供矿体空间定位的有利部位。
Great breakthrough in deep probing has been gained in Jiaodong since recent several years. Based on the study of the geological prospecting of the large gold metallogenic belts, the authors suggest that the first mineralization belt abnost disappear in - 400 m elevation. And through 100 - 250 m vertical interval, the second mineralization belt appears. The ore bodies in the second belt are more simple. The length in the run of the ore body is larger than the depth of it, the gold grade and dip angle become smaller. By summarizing metallogeny of the known gold ore bodies, prospecting target should be the both wings of the Ⅰ-order-fault-controlled deep main ore bodies, predicting reappearing probability of deep ore body by analyzing achievements in geological prospecting and detecting tectonic zone by physica-chemical prospecting and providing favourable mineral position.
出处
《地质调查与研究》
2008年第3期204-208,共5页
Geological Survey and Research
基金
山东省国土资源厅地质科研项目:山东省胶西北金矿集中区金矿资源潜力调查及深部远景预测(鲁国土资字[2006]567号)
关键词
金矿集中区
深部
找矿
胶东
Jiaodong
gold deposit
deep exploration
