基于构造恢复理论的含复杂断层三维地质建模方法
花卫华 , 曾新灵 , 郭丹阳 , 宿紫莹 , 张文 , 段剑超
地球科学 ›› 2024, Vol. 49 ›› Issue (04) : 1411 -1420.
基于构造恢复理论的含复杂断层三维地质建模方法
3D Geological Modeling Method Based on Tectonic Restoration Theory
在三维地质建模中,许多工作集中于断层本身的模拟,而忽略了断层时序性对地层构造的影响,然而考虑断层构造时序性及其导致的变形是十分必要和关键的.针对此问题,基于断裂恢复与演化影响域理论,提出了断裂矢量场建模方法用于含复杂断裂网络的三维地质建模,先使用断裂矢量场位移算子以断裂构造演化逆序恢复影响域范围内的地层和断层数据,再以演化正序逐步计算受断层影响后的地层和断层数据,获得含复杂断层网络的三维地质模型.通过建模实验和对比实验,验证了方法对数据具有更高的利用率以及在处理断裂接触时的能力,并且在建模过程会自动计算断裂导致的一切位移,提高了建模合理性和效率.方法充分考虑了断层构造时序性的影响,更适用于解决具有复杂接触关系的断裂网络模型构建问题.
三维建模 / 复杂断层网络 / 断裂构造恢复及演化 / 构造地质学
3D modeling / complex fault network / restoration and evolution of fault structure / structural geology
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国家重点研发计划课题(2019YFC0605102)
国家自然科学基金项目(41972307)
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