【摘要】 都龙超单元是一个大型中酸性复式岩体,具成分和结构演化序列。根据同源岩浆演化的理论,结合岩石化学、地球化学、包体特征及各侵入体的接触关系等,将该岩体进行了系统的解体,圈定出23个大小不等的侵入体,进一步归并为5个单元和一个超单元,建立了区内的岩石谱系单位。并对超单元的成因类型和就位机制进行了探讨,认为该岩体是同一大地构造环境下同源岩浆多次脉(涌)动形成的超单元。更多还原

【Abstract】 Dulong super--unit is a large intermediate--acid composite rock body with anevolutionary sequence of composition and stucture. In term of the theory of comagmatic evo-lution, based on the features of petrochemistry, geochemistry and inclusion and the contactrelationship between instrusives, the rock body was systematically disintegrated into 23 in-trusives varing in size. And, further more, they merged in 5 units and 1 super--unit. So thepetrolineage have been established in this region. On the basis of an approach to the genetictype and emplacement mechanism of the super--unit, it is considered that the super--unitwas formed by multiple pulsation of comagma.更多还原