Uranium deposits of volcanic type are densely distributed along the two sides of Fuzhou-Shaox-ing section of Qinhang Paleo-plate structure zone. They are the products of tectonic-volcanic magmatism at the same Mesozoic tectonic background and comprise the northeast section of Qinhang metallogenic belt. Structure was found the main ore-controlling factor of volcanic type uranium deposits in this area. Volcanic structures and faults jointly control the deposits, not only in the hierarchically controlling of dif-ferent grade structures to mineralization units but also the even space distribution pattern of uranium de-posit in the unit. According to the trisection distribwtion pattern in cluster area, some area is predicted for further research and exploration.%钦杭古板块结合带抚州-绍兴段及两侧地区火山岩型铀矿床密集分布,区域构造环境演化及铀成矿地质特征分析表明:它们是中生代相同构造背景下构造-火山岩浆活动的产物,可归属为钦杭成矿带北东段的组成部分.构造是区内火山岩型铀矿主要控矿地质因素,火山构造与断裂构造联合控矿特征明显,不仅表现为构造分级控矿规律,而且各级铀成矿单位均表现了铀矿定向三等距分布规律.依据矿产集中域定向三等距分布规律,开展了铀成矿预测,指出了值得进一步研究及勘查的工作区.
展开▼
