摘要
花岗岩类锆石形态学研究是目前国际上花岗岩岩石学研究的前沿。本文对东天山12个花岗岩体的锆石进行了形态学研究,提出控制锆石形态发展的多种因素;介质化学、结晶温度、岩体时代等,并提出了不同成因系列花岗岩锆石形态有一定的差别,这对研究花岗岩类成因分类、形成地质条件、构造环境等,都具有重要的指示性意义。
Zircon is the most important accessory mineral in granitoids.Studied morphology of zircon we may get information about origin of granitoids.Although the factor that affect the crystal form of zir- con is very complex,the chemical composition of magma and crystallization condition are the main two factors,especially,the chemical composition and crystanization temperature.Therefore,the composition and forming condition of granitic magma could be deduced through the study of zircon crystal form.Because the different series of granites has different petrochemical composition and midi- um chemical and physical conditions resulting in the diferent crystal form of ziron.So,the crystal form of ziron can also be used to determine the origin series of any granite.
出处
《江苏地质》
1991年第3期129-134,共6页
Jiangsu Geology
