新甫山奥长花岗岩的特征和岩石成因

FEATURES AND PETROGENESIS OF TRONDHJEMITE IN XINFUSHAN MOUNTAIN

摘要:

本文主要从岩石学、岩石化学及稀土元素组成等方面,论述了新甫山奥长花岗岩的特征,探讨了该岩体的岩石成因。并与国内外相应岩石的某些特征进行了类比,认为新甫山奥长花岗岩比较典型,成因类型与同熔型花岗岩相当。其与鲁西广泛分布的英云闪长岩、花岗闪长岩一起构成了该区的TTG花岗岩系列。文中还结合国外学者对奥长花岗岩产出地质环境的认识,佐证了泰山群为太古宙绿岩带。

Abstract:

This paper deals with features of trondhijemite in Xinfushan mountain. Which were compared with those of similar rocks at home and abroad, mainly in terms of its petrology, petrochemistry and REE composition. The petrogenesis of the Xinfushan trondhjemite was discussed. The author suggests that the trondhjemite in this area is quite typical and belongs to syntectic granite;together with the widespread tonalite and granodionte it makes up TTG granite series in western Shandong. The paper qives evidence indic...