CAJ | 학술논문

近年来的区域地质调查在闽东南长乐一南澳断裂带中,多处新发现白垩纪(辉长)闪长质和二长花岗质岩浆经机械的、化学的混合形成各种浆混岩类.与两混合端元岩石共同构成浆混杂岩,成岩后还受到应力作用.它们因特殊的结构构造而长期被归入混合花岗岩或片麻状花岗岩类.描述了泉州市肖厝、福清市高山等地浆混杂岩的野外地质特征,并与莆田市和福清市的典型变质变形花岗岩类进行了对比.指出这3类岩石之间有明显的区别,浆混杂岩可能形成于主变质变形期之前早白垩世早期的伸展环境中.
근년래적구역지질조사재민동남장악일남오단렬대중,다처신발현백성기(휘장)섬장질화이장화강질암장경궤계적、화학적혼합형성각충장혼암류.여량혼합단원암석공동구성장혼잡암,성암후환수도응력작용.타문인특수적결구구조이장기피귀입혼합화강암혹편마상화강암류.묘술료천주시초조、복청시고산등지장혼잡암적야외지질특정,병여보전시화복청시적전형변질변형화강암류진행료대비.지출저3류암석지간유명현적구별,장혼잡암가능형성우주변질변형기지전조백성세조기적신전배경중.
Various magma-mixed plutonic rocks formed by physical and chemical mixings in Cretaceous dioritic and monzogranitic magmas have been discerned in the Changle-Nan'ao Fault Zone of southeastern Fujian Province during recent regional geological surveys.Magma-mixed rocks and their two end-member rocks comprise magma-mixed complex,and underwent stress affect after emplacement.They were misunderstand as migmatites or gaelic granites formed by metamorphism and deformation for a long period due to their specific texture.This paper describes field geologic appearances of magma-mixed complex exposed in Xiaocuo of Quanzhou and Gaoshan of Fuqing,their petrological diversities with typical both deformed granite in Putian and granitic gneiss in Fuqing,and infers that magma-mixed plutonic rocks were emplaced in an extensional setcitlg during early period of Early Cretaceous, earlier than main metamorphism-deformation phase.