山东焦家金矿中深部矿体成矿规律及成矿预测

Deep-lateral-trending Orebody Research and Metallogenic Prediction of Jiaojia Gold Deposit,Shandong Province

内生热液金矿床矿化富集带(矿体)侧伏规律与多期次的构造—岩浆—含矿热液流体活动密切相关,是金矿床矿化富集带(矿体)深部成矿规律,也是导致特大型金矿床形成的重要原因之一。通过分析焦家金矿主要控矿构造的地质特征、递进演化过程及矿体成矿规律,运用SURPAC软件,建立焦家金矿床Ⅰ号矿体的空间实体模型,从而总结出焦家金矿床Ⅰ号矿体的侧伏规律,在此基础上对焦家金矿床Ⅰ号矿体深部进行成矿预测,圈定了成矿靶区。本次研究证实了"焦家金矿床深部存在第二富集带"的推断,为矿山深部的地质研究和地质探矿工作提供理论参考和实践依据,对于满足矿山可持续发展有重要意义。

The lateral trending regularity of endogenic-hydrothermal gold deposit mineralized enrichment zone （orebody） has a close relation with multi-stages tectonic-magma-ore-bearing-hydrothermal fluids activities,it is the deep-variability metallogenic law of the gold deposit mineralized enrichment zone （orebody） and it is also one of the most important cause for the forming of oversized gold deposit.In this paper, we study and analyze the geo- logical features,progressive-evolution process and the orebody＇s metallogenie regularity of the main ore-control- ling structures, using SURPAC software to establish the spatial-entity model of Jiaojia gold deposit No. I orebody, summarize the lateral trending regularity, and establish its prospecting model.On this basis,we have completed the deep metallogenie prediction for Jiaojia gold deposit No. I orebody, and predict the mineralization target.The study confirmes that there exist another gold enrichment zone in deep, and which is of great significance for sustainable development, also provides theoretical reference and practical basis for geological research and mining deep geo- logical prospecting work.