基于剖面三维地质建模方法及在本溪地区应用

针对成矿带三维地质建模面临的实际问题,以GOCAD软件作为三维建模工具,阐述了基于剖面的三维地质建模流程与方法.为了充分揭示本溪地区深部地质情况及隐伏铁矿的发育情况,采用基于剖面的三维地质建模方法构建了本溪地区907km2的三维地质模型,获取了本溪地区地下三维地质结构,显示出该地区盖层发育宽缓褶皱,断裂切割作用强烈,基底最大埋深可达4200 m,在变质基底埋深较浅的地区,具有很大的铁矿资源勘探潜力.实际应用情况表明,基于剖面的三维地质建模方法符合地质研究从二维到三维的工作流程和思维习惯,是一种有效的成矿带三维建模方法.

THE 3D MODELING METHOD BASED ON PROFILES AND ITS APPLICATION IN BENXI,LIAONING PROVINCE

With the GOCAD software,the 3D modeling method based on profiles （3DMMBOP） is put forward for metallogenic belt modeling.In order to reveal the deep geological situation and concealed iron ores in Benxi area,the 3D geological modeling method is established based on profiles in a total area of 907 km2.The obtained 3D subsurface geological structures show developed broad and gentle folds,intense faulting and buried basement up to 4200 m deep.The areas with shallow metamorphic basement have a great potential for iron resources exploration.The practices prove that 3DMMBOP is an effective method for metallogenic belt three-dimensional modeling.