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一、前言陕北侏罗纪煤田是陕西省的最大煤田。它位于鄂尔多斯盆地北东部的一个宽缓向西倾的单斜构造上,构造变动甚微,地层倾角很小,一般1°～2°。它含煤面积大,有三万平方公里,储量丰富,截止1985年年底已探明储量796.7亿吨,预测本煤田总储量达1382亿吨:煤质优良,绝大多数为低灰、低硫、低磷、中高发热量的弱粘结煤、不粘结煤和长焰煤,在国际市场上有较强的竞争力,可不经洗选,作为动力煤出售,是我国未来的优质动力煤供应基地和出口煤基地。另外,还具有煤层稳定,埋藏浅,易于开采等优点。所以,陕北侏罗纪煤田的开发已引起国内外的极大关注。
I. Preface Northern Jurassic coalfield is the largest coalfield in Shaanxi Province. It is located in the northeastern Ordos Basin, a gentle easterly dip monoclinic structure with little structural change, the formation dip is very small, usually 1 ° ~ 2 °. It has a large coal area of 30,000 square kilometers with abundant reserves. By the end of 1985, it has proven reserves of 79.67 billion tons. The total reserves of the coalfield are predicted to reach 138.2 billion tons: excellent coal quality, with the vast majority being low ash and low sulfur , Low-phosphorus, medium-high calorific weakly bonded coal, non-cohesive coal and long flame coal, which are highly competitive in the international market. They can be sold as thermal coal without washing and washing, and are the high quality thermal coal in China in the future Supply base and export coal base. In addition, it also has the advantages of stable coal seam, shallow burying and easy exploitation. Therefore, the development of the Jurassic coalfield in northern Shaanxi has drawn great attention at home and abroad.