胶西北地区三维地质模型构建及意义

Construction and Significance of Threedimensional Geological Model in Northwest Jiaodong Area

摘要:

为服务于山东深部找矿，结合金矿成矿机理及预测评价，利用Creatar Xmodeling平台建立了胶西北地区三维地质模型，直观、清楚地反映出胶西北地区地层厚度及变化趋势，岩浆岩展布规模、深度及相互接触关系，从空间分布视角可以看出，金成矿与玲珑花岗岩、郭家岭花岗岩、伟德山花岗岩存在密切关联；全方位展示出断裂带之间的关系，深部金矿床赋存主要由招平、焦家和三山岛3条铲式断裂控制，对胶西北阶梯式成矿模式提供了有力证据，进而指示深部找矿的方向。

Abstract:

In order to serve deep prospecting in Shandong province, combining with metallogenic mechanism and prediction and evaluation, by using the Creatar Xmodeling platform, a threedimensional geological model in the northwest of Jiaodong area has been established. It directly and clearly reflects the strata thickness and variation trend, the distribution scale, depth and contact relationship of magmatic rocks. From the perspective of spatial distribution, it can be seen that gold mineralization is closely related to Linglong granite, Guojialing granite and Weide mountain granite. It can show the relationship between the fault zones in all directions. The occurrence of deep gold deposits is mainly controlled by Zhaoping, Jiaojia and Sanshandao shove type faults. It will provide strong evidence for the stepped type metallogenic model in the northwest of Jiaodong area, and further indicates the direction of deep prospecting.