Geothermal geological significance of the Yushu fault zone in Jiegu of Yushu County, Qinghai
-
摘要: 玉树县结古镇位于玉树断裂带上的扎喜科地热异常区。成热条件受具多期活动性的玉树断裂带控制，是断裂导水通道和地热梯度高值带。其上盘为地下热水的主上涌通道和地下热水富水块段，地热异常具明显的带状分布特点。在水文地质条件上，富水性相对较好，地下水在北东部山区接受大气降水、地表水和地下水补给后，汇集于断裂破碎带中，加热后沿着构造裂隙、溶隙等各种上升通道循环径流，最终于河谷区、山间盆地地表形成温泉或水温异常的上升泉。初步评价结果表明，结古地区地热资源潜力较大，具有一定的开发前景。Abstract: Jiegu township of Yushu county lies in Zhaxike geothermal anomaly area along the Yushu fault zone. Geothermal formation conditions are controlled by the Yushu Fault. The Yushu Fault is of poly stage activity, and acts as water conduits and is a high geothermic gradient belt. The hanging wall of the faults forms an upwelling pathway and groundwaterrich area, in which geothermal anomaly area is characterized by obviously zonal distribution. Hydrogeologically, the hangning wall is respectively rich in groundwater. The groundwater is recharged from precipitation, surface water and groundwater runoff in the northeastern hilly area. Groundwater, converging in crushed zone of the fault, is heated in the patheway and becomes circulating runoffs through structural fracture and karst fracture etc. And at last, discharges in the forms of hypgene sping of high or abnormal temperature in the valley and intermontane basin. The preevaluation test shows that the geothermal source in the Gujie area is of great potential capacity and development prospect
-
Key words:
- Qinghai /
- Yushu fault /
- hot spring /
- geotherm anomaly /
- geothermal resources
-
-
计量
- 文章访问数: 1620
- PDF下载数: 1
- 施引文献: 0
下载: