摘要
钦杭结合带赣东北段盛源火山盆地西缘,有2个层控型的火山岩型铀矿床,这两个矿床产于-个面积不到4 km~2的65-70推覆体内,由于控制推覆体的逆冲断层本身无铀矿化,也无明显的热液蚀变现象,构造岩疏松,并见构造泥,具有新构造的特点。推覆体内发育的各种切层构造均为矿后构造。文章认为,65-70推覆体没有控制矿床的形成过程,但具有较大的指导找矿预测的意义。65-70推覆体的原地岩块应该在盛源盆地中,盛源盆地具有寻找65、70矿床原矿体的前景。
There are two stratabound volcano rock type uranium deposits in the western margin of Shengyuan volcano basin,Northeast Jiangxi,In Qin-Hangzhou juncture belt.The two deposits are situated at the 65-70 nappe less than 4 km2.As without uranium mineralization,no obvious hydrothermal alteration phenomenon,tectonic rock being loose,and with the structure mud,The author thinks that the thrust fault controlling 65-70 nappe is a new structure and the cutting layer structure occurred in the nappe are post ore structure.So the conclusion is that the 65-70 nappe did not control the formation process of the deposits,but has a large of significance in the guide prospecting.The autochthonous blocks of the 65-70 nappe should be in Shengyuan basin,where has the prospect of finding deposits with similar the 65,70 ore deposits.
引文
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