费县马头崖地区新太代五台期TTG岩系特征

Typical Characteristics of TTG Rock Series in Cenozoic Wutai Period of Matouya Area, Feixian County

摘要:

费县马头崖地区新太古代五台期侵入岩发育广泛 ,为一套石英闪长岩—英云闪长岩—奥长花岗岩—花岗闪长岩的岩石序列组合 (TTG岩系 ) ,在形成时间和空间分布上相对一致 ,为一次岩浆热事件多次活动的产物 ,其成分和结构具有双重演化特征 ,构成一个较完整的岩浆演化序列。依据岩性特点及其演化特征 ,归并为峄山超单元 ,是鲁西地区新太古代的第二套TTG岩系。

Abstract:

Intrusives in Neoarchaean Wutai period developed widely in Matouya area of Feixian county. They are a series of rock combinations of quartz dioritetonalitetrondhjemitegranodiorite (TTG rock series) which are relatively conformity with each other in time and space. It is the product of one magmatic thermal event and multiactivities. Its compositions and structures have dual evolution characteristics, which formed a complete magmatic evolution sequence. According to rock property characteristics and its evolution characteristics, it was classified as Yishan superunit which is the second Neoarchaean TTG rock series in west of Shandong province.