柴达木盆地深层地下水成矿模式及其成矿规律

The Mineralization Pattern and Laws of Deep Groundwater in the Qaidam Basin

论述了柴达木盆地深层地下水成矿模式及其成矿规律。不仅剖析了深层地下水成矿的研究概况和化学成分的现今性状与时空分布规律 ;而且首次探讨了深层地下水的水文地质发育史 ,进行了古水文地质再造 ,提出了古水文地质旋回的新概念。同时 ,还揭示出“围压深埋型烃类运聚形成的石油 (气 )藏”及其“高压围限的低压区、毗邻高压区的低压区、卸压区和早熟型等 4大聚油 (气 )区”和“高山深盆浅水蒸发型盐湖富钾卤水矿床”及其“水平分带、垂向叠加效应和水型相关”等 3大成矿规律。据此 ,对于石油 (气 )藏和盐湖富钾卤水等资源开展了成矿予测 。

The mineralization pattern and laws of deep groundwater in the Qaidam Basin have been expounded in this paper, the study status quo and the property and the temporal spatial distribution of chemical components in deep groundwater have also been discussed. For the first time, the hydrogeological development history of deep groundwater has been introduced and the reconstruction of palaeo hydrogeology has been comducted and the new concept, i.e., the palaeohydrogeological cycle, has been put forward. In addition, the oil (gas) resources formed by the deep buried hydrocarbon gathering and its four oil (gas) fields namely, the low pressure area surrounded by the high pressure area, the low pressure area adjacent the high pressure area, the pressure decreasing area and the prematurity area as well as the potassium abundant brine water in the salty lake formed by the evaporation of shallow ground water in the deep basin and its three mineralization laws, namely, the lateral zoning, the vertical superimposing effect and water type correlarity have been revealed. Finally, the mineralization of the oil (gas) resources and potassium abundant brine water in the salty lake have been predicted and the exploration and exploitation ways have been proposed.