摘要
570矿床地质背景是破火山旋回边缘活动带;矿床定位要素是受破火山断裂系统构造结控制的隐爆角砾岩筒;隐爆加断陷组成的聚矿结构,是富矿形成的主要条件;隐爆角砾岩筒与次火山花岗岩浆侵位组成的热泵汲取效应,是矿床基本成因模式。矿床扩大方向是在探索隐爆角砾岩筒深部的同时,沿边缘活动带,在破火山断裂系统构造结处寻找新的隐爆角砾岩筒。
The geological setting of the ore deposit No. 570 is the active zones on the border of the caldera, which was emplaced in the cryptoexplosive breccia chimney controlled by the intersection part of the caldera rupture system. The ore accumulation structure constituted by cryptoexplosion and ruptures is the principal condition for the formation of rich uranium ore. The thermosyphon effect produced by the cryptoexplosive breccia chimney and the emplacement of subvolcanic granite magma is the basic genetic model. For further exploration, while exploring the deeper part of the cryptoexplosive breccia chimney, we should explore the new cryptoexplosive breccia chimney which is in the intersection part of the caldera rupture system along the marginal active zones.
出处
《铀矿地质》
CSCD
北大核心
1990年第1期1-10,共10页
Uranium Geology
关键词
富矿
铀矿
形成
矿床
控制因素
Cryptoexplosive breccia chimney, Rich uranium ore deposit, Formation condition
