古水文地球化学形迹与地浸砂岩铀成矿的关系

本文以水成铀矿床、地质构造学、沉积学、古水文地质学、铀水文地球化学、同位素地质学等学科理论，从分析伊犁盆地南缘铀成矿大地构造背景人手，初步进行了盆地地质构造、地质演化、含矿岩系沉积特征、地下水中同位素（D、^18O、^3H、^234U／^238U、^230Th／^232Th等）和水文地球化学的研究，基本查明了伊犁盆地南缘区域地下水动力条件，研究了区域水文地球化学条件与铀成矿的关系，探讨古地下水演化与铀成矿作用的关系，为全盲型地浸砂岩铀成矿的水文地球化学及古水文地质预测研究提供理论基础。

Relationship between palaeohydrochemical traces and in-situ leachable sandstone type uranium mineralization

Basing on theories of hydrogenic uranium deposits, geological structure, sedimentology, palaeohydrogeology ,uranium hydrogeochemistry and isotope geology ,and starting with analysing geotectonic background of uranium mineralization in the south margin of Yili basin ,Xingjian,this paper introduced the preliminary study on geological structure ,geological evolution, sedimentary characters of ore-bearing formation, isotopes of groundwater （ D, ^18 O,^3 H,^234U/^238 U,^230Th/^232Th etc. ） and hydrogeochemistry of the basin. The paper basically clarified the dynamic conditions of regional groundwater, relationship between regional hydrogeochemical conditions and uranium mineralization and ap- proached the evolutions of palaeogroundwater related to uranium mineralization, thus provided hydrogeochemistry and palaeohydrological prospecting of fully blind in-situ leachable sandstone type uranium mineralization with theoretical basis.