内蒙古查干诺尔地区HF-3号航空放射性异常铀矿化的基本特征

HF-3号航放异常位于内蒙古查干诺尔乡附近，其大地构造位置处于二连盆地苏尼特隆起与滕格尔坳陷的过渡地带。异常地段出露的地层为新近系的中新统汗诺坝组，经浅井工程的重新揭露，初步查明该异常浅部铀矿化具多层性、连续性、稳定性及原生和后生再富集等复式成因特征，基本上掌握了其矿化的控制因素及形成条件，深化了对该异常的认识与评价。

BASIC CHARACTERISTICS OF NO. HF-3 AIRBORNE RADIOACTIVE ANOMALY IN QAGAN NUR AREA, INNER MONGOLIA

No. HF-3 airborne radioactive anomaly near Qagan Nur Township in Inner Mongolia is situated at the transitional zone between Sonid uplift in Erlian basin and Tengger depression. The outcrop of the anomaly belongs to Neogene Hannuoba Formation. Reexposing by the shallow borehole reveals that the shallow uranium mineralization of this anomaly is characterized by multi-layering, continuation, stableness and epigenetic re-enrichment, suggesting a complex genesis. This study has basically detected the control factors and formation conditions of the mineralization, thus deepening the understanding of this anomaly.