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中文摘要：
对大别造山带超高压榴辉岩中不同类型的变质脉开展了变质锆石学和微区地球化学对比研究,包括矿物多相包裹体观察,微量元素和氢氧同位素分析,锆石内部结构和外部形态,U-Pb定年,微量元素,Lu-Hf和O同位素分析.结果发现,形成石英脉的流体是高压富水的,引起变质新生锆石的生长,同时伴随原岩残留岩浆锆石的固态重结晶和溶解重结晶;形成复杂矿物组合脉的流体可能具有超临界性质,引起原岩残留锆石的溶解,Zr的短距离迁移以及变质新生锆石再沉淀.两种不同类型的变质脉中残留岩浆锆石和变质新生锆石的同时存在,指示在俯冲带变质流体活动过程中,同时发生原岩残留岩浆锆石的物理搬运和元素Zr的化学迁移.
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