摘要
在沉积砂岩中铀受地球化学环境的影响以U4+和U6+的形式存在,铀的迁移和富集被砂岩的孔隙度、胶结类型、胶结程度和地下水的氧化-还原能力等因素控制。通过对铀的价态研究划分托斯特凹陷乌伦古河组第Ⅲ旋回的氧化-还原过渡带,确定了地下水的流向,这与实际情况较为吻合。
Affected by the geochemical environment, sandstone. The transfer and enrichment of uranium uranium exists as U^4＋ and U^6＋ in the sedimentary are mainly controlled by the rock porosity, cementation type, cementation degree and the oxidation-reduction ability of the groundwater, and so on. Through studying uranium valance, the oxidation-reduction zones have been identified and the groundwater flowing directions have been determined in the third cycle of Wulungu River Formation in Tuosite depression, which is in accordance with the fact.
出处
《世界核地质科学》
CAS
2009年第2期96-99,103,共5页
World Nuclear Geoscience
关键词
托斯特凹陷
铀价态
氧化-还原带
Tuosite depression
uranium valence
oxidation-reduction zone
