坦桑尼亚纳姆图博地区放射性异常特征及成矿远景预测

Radioactive Anomalous Characteristics and Metallogenetic Prospecting Prediction in Namtumbo District, Tanzania

坦桑尼亚纳姆图博(Namtumbo)地区位于塞罗斯(Selous)盆地西缘,该区域航空放射性异常带广泛分布,位于该区东部约30km处分布一大型砂岩型铀矿床-姆库居河铀矿,为坦桑尼亚目前发现的唯一大型砂岩型铀矿床。区内存在较多的航空放射性异常场,放射性总量在砂岩和花岗岩区均有高值显示,表明在该区域具有较大的寻找砂岩型或者花岗岩型铀矿床的潜力。

Namtumbo district of Tanzania is located in the west of Selous basin, and this area has widely airborne radioactive anomalies zone, there is a large sandstone type uranium deposit-Mkuju river uranium deposit about 30 km in the east of the studying area, which is the only large sandstone type uranium deposit discovered in Tanzania by far. There exist more airborne radioactive anomaly fields in the area. The activity inventory in the area of sandstone and granite are both high, showing larger potential for searching sandstone-type or granite-type uranium deposits.