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根据矿床位置、交通、矿区地质特征、矿床成因、矿床储量、矿区自然地理与开采技术条件等因素综合对比研究，确定内蒙古兴和县高庙子膨润土矿床为我国高放废物地质处置库缓冲／回填材料供给基地的首选矿床。本文对主要矿层进行了物质成分、物理化学性能等方面的研究。对测试结果分析可知，高庙子膨润土的蒙脱石含量较高，物理化学性能和物理水理性质较好。因此，高庙子膨润土矿床作为高放废物地质处置库缓冲／回填材料的供给基地是可行的。
Based on the comprehensive comparative study of deposit location, traffic, mining geological characteristics, deposit genesis, deposit reserve, natural geography of mining area and technical conditions of mining, it is determined that the Gaomiaozi Bentonite deposit in Xinghe County of Inner Mongolia is the buffer / backfill for the geological repository of high level radioactive waste Material supply base of the preferred deposit. In this paper, the material composition, physical and chemical properties and other aspects of the main ore were studied. Analysis of test results shows that Gaomiaozi bentonite has a higher content of montmorillonite, better physical and chemical properties and physical and chemical properties. Therefore, the Gaomiaozi Bentonite deposit is feasible as a supply base of buffering / backfilling materials for geological disposal of HLW.