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陕西省碳酸盐岩主要分布于秦巴山地,其次分布于渭北“旱腰带”(北山一带),以及零星分布于府谷县城(图1)。岩溶区地下水赋存于震旦系至三叠系下统碳酸盐岩裂隙溶洞中,富水性极不均一。其赋存规律主要取决于气候、岩性、构造等的综合作用。陕南米仓山及羊山一带,属亚热带湿润气候,水热条件优越,岩溶发育,富水性极强。而渭北及陕南北部属暖温带半湿润气候,岩溶发育较差。
The carbonate rocks in Shaanxi Province are mainly distributed in the Qinba Mountains, followed by the “Dry Belt” in Weibei (Beishan area) and scattered in Fugu County (Figure 1). Karst groundwater occurs in Sinian to Triassic carbonate fissures in karst caves, and the water-richness is extremely heterogeneous. The law of its occurrence mainly depends on the comprehensive effects of climate, lithology and tectonics. South of Michang Mountain and Yangshan area, is a subtropical humid climate, hydrothermal conditions, karst development, highly water-rich. Weibei and northern Shaanxi is a warm temperate semi-humid climate, karst development is poor.