摘要
The Phanerozoic granitoid rocks include the Caledonian, Indosinian and Yenshaniangranitoid rocks. The existence of Caledonian and indosinian granites was evidenced by zirconU-Ph ages. The study of the characteristics of major, trace and rare-earth elements, isotopiccompeition and petrogenesis for the granitoid rocks has been made. The Caledonian and Indosinian granites were derived from partial melting of the Proterozoic basement rocks and thetwo tectonic activities were weak. The Yenshanian granitoid rocks were derived from mixing of mantle and crustal materials. It implies that the Crustal accretion took Place in Mesozoic time.
The Phanerozoic granitoid rocks include the Caledonian, Indosinian and Yenshaniangranitoid rocks. The existence of Caledonian and indosinian granites was evidenced by zirconU-Ph ages. The study of the characteristics of major, trace and rare-earth elements, isotopiccompeition and petrogenesis for the granitoid rocks has been made. The Caledonian and Indosinian granites were derived from partial melting of the Proterozoic basement rocks and thetwo tectonic activities were weak. The Yenshanian granitoid rocks were derived from mixing of mantle and crustal materials. It implies that the Crustal accretion took Place in Mesozoic time.
关键词
示踪元素
稀土元素
同位素
显生宙
花岗岩
岩石成因
浙江
Phanerozoic granitoid rock
major element
trace element, rare-earth element
isotope
Petropenesis
