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一、榆林盐业资源状况及开发现状(一)资源状况1955年,陕西延长油矿延深1#钻到奥陶系,发现多层石盐岩,这是陕北首次发现岩盐,但当时未得到重视。1987年,长庆石油勘探局在镇川1#相同层位钻到厚盐层并取出矿芯,引起钾盐地质工作者的高度重视。从1988年开始,地矿部第三地质大队在该区开展了钾盐普查及综合研究,在普查
I. Status of Yulin Salt Industry Resources and Development (I) Resource Status In 1955, Yanchang 1 # of Yanchang Oilfield in Shaanxi Province was drilled into the Ordovician, and multi-layer rock salt rock was found. This was the first discovery of salt rock in northern Shaanxi, but it was not obtained Pay attention. In 1987, Changqing Petroleum Exploration Bureau drilled a thick salt layer and took out the core at the same layer of Zhenchuan 1 #, causing great attention to the potassium salt geologists. Since 1988, the Third Geological Brigade of the Ministry of Geology and Minerals has conducted a survey and comprehensive study of potash in the area. During the census