摘要
相山铀矿田和斯特列利措夫铀矿田均产于破火山口中,相山火山盆地的基底为震旦系变质岩,斯特列利措夫盆地的基底为多期活化的片麻状花岗岩。两盆地的破火山口盖层均为陆相火山岩系,相山破火山口火山岩系为酸性和中酸性岩,斯特列利措夫破火山口火山岩系则为酸性和基性火山岩呈互层产出。破火山口内的构造和蚀变作用发育程度存在明显差异,这是两个铀矿田成矿远景不同的主要原因。
Both Xiangshan uranium field and Strelitsov uranium field occurred in the caldera. Coveres of the two calderas are continental volcanics, but the main volcanies of Xiangshan ealdera are acid and that of Strelitsov caldera are acid and basic. The basemant of Xiangshan caldera are different to that of Strelitsov caldera. The structure type and alteration degree of the two ealderas are much different which is the main reason for the metallogenic prospect difference between Xiansan uranium field and Strelitsov uranium field.
出处
《铀矿地质》
CAS
CSCD
2012年第5期265-272,共8页
Uranium Geology
关键词
破火山口
陆相火山岩系
构造
热液蚀变
caldera
continental volcanics
structure
hydrothermal alteration
