【摘要】 在云南省罗茨—武定地区西矿带中元古界昆阳群大箐亚式含铜白云岩中有碳酸盐浆屑和熔融包裹体存在。熔融包裹体可以分为碳酸盐的和硅酸盐的两类。其中硅酸盐的平均化学成分相当于粗面质和粗安质碱性岩浆成分。该发现证明本区中元古代确有硅酸盐—碳酸盐混合岩浆活动，大箐含铜白云岩很可能与此有关更多还原

【Abstract】 Carbonatic melton debris and melt inclusions have been discovered from Daqing Cubearing dolomite of Kunyang group,Middle Proterozoic Erathem in the west metallization zone of Ruoci—Wuding area Yunan province.The melt inclusions can be divided into carbonatic type and sillicatic type.Average compositions of the latter are similiar to that of trachytic or trachyandesitic alkali magma.The discovery indicates that the sillicatecarbonatite magma actually activated in this area in the Middle Proterozoic,and the genesis of Daqing Cubearing dolomite is probably related to the magma eruption.更多还原