辽北沙河断裂带找矿方法研究

Study on the Prospecting Method of Shahe Fault Zone in Northern Liaoning

尝试性地运用成矿系列理论和综合方法,对以往积累的地质资料进行了系统的整理和分析、研究,对成矿地质构造与地壳演化、区域成矿控制因素及其成矿规律、综合性找矿等方面进行了较为深入的研究和探讨,通过综合找矿方法取得了很好效果,这种方法对辽北地区新一轮找矿工作具有指导意义。以往找矿工作方法比较单一,浪费了大量财力、物力,找矿效果不佳。通过化探分散流异常选择成矿预测区;进一步采用土壤测量对异常进行查证筛选出找矿靶区;然后对筛选的靶区开展物探、地质工作,通过适当的工程手段对异常及矿化体进行验证以确定矿化体的存在。利用这种综合找矿方法在沙河断裂北部的小甸子区发现了独立锌矿,在沙河断裂带南部曹家堡子区找到了金矿。

The research on Liaobei Shahe fault belt prospecting method attempts to use the theory and synthesis meth- od of metallogenic series, and systematically organize and analyze the geological data collected in the past. An in-- depth study and discussion on metallogenic geological tectonic, crustal evolution, regional metallogenic control factor, metallogenic regularity, comprehensive ore prospection and etc were conducted . It has great achievement through ge- ological and geochemical methods, and this approach shows guiding significance to carry out a new round of ore prospection in the northern area. In the past, the method of prospecting for ore is relatively simple, and a lot of finan- cial and material resources have been wasted without good prospection consequences. Through geochemical explora- tion, the metallogenic prediction area is selected, and the target areas are identified by using soil survey. Then through reasonable engineering techniques, geophysical exploration and geological analysis were conducted on target to verify anomalies and mineralized bodies in order to determine the presence of mineralized bodies. Using this comprehensive prospecting methods for ore in Xiaodianzi area of northern Shahe fault, independent zinc ore was found; and in Cao- jiapuzi area of southern Shahe fault zone, gold was found.