龙门地热田温热水成因探讨

根据地面调查和勘探资料,作者系统地分析了龙门地热田的构造特点、温热水的分布及水化学特征,指出龙门地热田温热水的分布具有两个特点:一是在地热田的南部主要受F1断层的控制呈线状分布;二是在地热田的北部由于F41断层与F1断层相交和滑动构造(HF3)的共同作用,呈面状分布.温热水的形成是热源、构造、盖层以及热储层等因素最佳配套的产物.地热田的南部,沿F1断层带是寻找温热水的主要场所;北部、北西部,F1断层带、F41断层带、滑动构造(HF3)分布区均是温热水赋存的有利地段.

The formation of geothermal groundwater in the Longmen geothermal field

According to field investigation and exploration, the characteristics of tectonics, the distribution and the chemical composition of geothermal groundwater in the Longmen geothermal field are analyzed in this paper. The occurrence of the geothermal groundwater is divided into two situations: the geothermal groundwater distributes linearly along F1 fault in the southern Longmen geothermal field, and distributes regionally in the north because of the combined action of the intersection of F41 fault and F1 fault, and HF3 slide structure. The formation of geothermal groundwater is controlled by the heat source, tectonics, seal rocks, and reservoir. The F1 fault belt is the first area for the geothermal groundwater exploration, the second is the area confined by F1 , F41 and HF3. This conclusion has been proved by the exploration.