天镇县马圈痒地热田成因

本文从地形、地貌、地层及地质构造等方面对马圈痒地热田的成因进行了分析和论述。提出了本热田为断裂裂隙热储系统的深循环式的热田。它的补给源为地表降水，补给通道是云门山山前大断裂，加热过程是在基底断裂裂隙运动中进行的、其热源为岩浆活动热，上涌通道是两个隆起上的断裂裂隙。上涌后进入第四纪热储层后与冷水混合，形成了一个“蘑菇状”的热水体。这种模式具有一定的代表性。

THE FORMATIVE CAUSES OF MAJUANXIANG GEOTHERMAL FIELD IN TIANZHEN COUNTY,SHANXI PROVINCE

In this paper, the formative causes of the Majuanxiang geothermal field were analysed and discussed inthe aspects such as topography, geomorphology, stratum, geological structure, and so on. It was put forward that the geogthermal field belongs to the deep cyclic pattern in rift-heat-reserve system. Its supplysource is surface precipitation and supply passage is a big rift in front of Yunmen mountain. The heating process is conducted during the movement of rift cracks in basement, heat source is from magma movement andascending passages are rift cracks in two stratigraphic convexes. After pouring up into the heat reserved stratum of the Quaternary period, the heat source is mixed with cold water to form a mushroom like heat watersystem. This geothermal field pattern has certain representativeness.