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一、概况新疆库车盆地位于天山地槽褶皱带南缘与塔里木地台之间,为一近东西向延伸的长形断陷盆地,形成于中、新生代。含盐系地层主要为第三系,而下第三系为最佳的含盐层段。盐类的物质来源在早期可能以海水为主,后期陆源水增多。盆地地下水化学类型按М.Г.瓦里亚什科计算方法大多为氯化物类型,少部分为硫酸镁和硫酸钠亚型。该盆地属于荒漠,半荒漠自然地理景观,蒸发量为降水量的10—20倍,甚至更大。地表水体稀少,地下水无充足的补给来源。该盆地中山间沟谷深切,断裂带及褶皱轴部张裂隙发育,
I. Overview The Kuqa Basin in Xinjiang is located between the southern margin of the Tianshan Gobi fold belt and the Tarim platform. It is an elongated faulted basin extending in the east-west direction and was formed in the Meso-Cenozoic. Saline strata are mainly Tertiary, while the next Tertiary is the best salt layer. Salt sources may be mainly in the early seawater, land water later increased. Basin groundwater chemical types according to М.Г. Variyashko calculation methods are mostly chloride type, a small part of the magnesium sulfate and sodium sulfate subtypes. The basin belongs to the desert, semi-desert natural geographical landscape, the evaporation of 10-20 times the precipitation, or even greater. Surface waters are sparsely populated and there is no adequate supply of groundwater. The basin in the middle of the valley deep, fault zone and folding shaft Zhang Zhang cracks development,