多重关联分析法在降扎地区铀成矿预测评价中的应用

Application of multiple correlation analysis method to the prognosis and evaluation of uranium metallogenisys in Jiangzha region

运用多重关联分析法于四川省若尔盖降扎地区进行铀矿资源预测评价,结合该方法特点和预测区的地质情况,选择铀源、岩性、构造、地形地貌、温泉和红盆等为铀成矿预测变量(因子),列出参考单元和预测单元变量的原始数据,计算关联度,最后生成和圈定出铀矿远景区。预测结果表明,方法可行,结果可信,建议将该方法逐步应用到整个若尔盖铀矿区的成矿预测。

Prognosis and evaluation of uranium resources in Jiangzha region, Sichuan province are carried out through the multiple correlation analysis method. Through combining the characteristics of the methods and geology circumstance of areas to be predict, the uranium source, rock types, structure, terrain, hot springs and red basin are selected as estimation variable （factor）. The original data of reference and predict unit are listed first, then correlation degree is calculated and uranium mineralization prospect areas are discriminated finally. The result shows that the method is credible, and should be applied to the whole Ruoergai uranium metallogenic area.