复杂地区三维区域地质调查流程:本溪—临江地区为例

在变质变形复杂的辽宁东部—吉林南部的本溪—临江地区开展的三维地质调查工作的基础上,经反复探索实践,得出了由区域主干剖面、区域建模剖面、建模约束剖面和建模剖面四级剖面控制下的分单元三维地质调查方法可以有效约束地下深部地质结构;提出了开展三维区域地质调查的17个步骤;讨论了方法与流程在本溪—临江地区的应用情况、有效性、可操作性及可靠性。

Flowchart of three-dimensional regional geological survey for a complicated area:taking Benxi-Linjiang area as an example

On basis of the three-dimensional geological survey completed in the Benxi-Linjiang area in eastern Liaoning-southern Jilin Province where the metamorphism and deformation are complicated, and by repeated practice and exploration, we conclude that subdivision three-dimensional geological survey method controlled by four-level profiles comprised of regional trunk profile, regional modeling profile, modeling constraint profile and modeling profile can constrain the deep geologic structure effectively. We also proposed 17 steps for conducting a three-dimensional geological survey and discussed the application situation, effectiveness, operability of this method and process and reliability of the result.