硅质岩与二叠纪硅质沉积事件研究现状及进展

被引：61

作者：

姚旭

周瑶琪

李素

李斗

机构：

[1] 中国石油大学(华东)地球科学与技术学院

来源：

地球科学进展 | 2013年 / 28卷 / 11期

关键词：

硅质岩; 成因机理; 二叠纪硅质沉积事件; 热水系统;

D O I：

暂无

中图分类号：

P588.244 [];

学科分类号：

摘要：

硅质岩分布于造山带和沉积盆地的特殊沉积相带,是岩石大地构造学研究的重要载体,其成因信息具有重要的古地理、古海洋意义。对硅质岩的研究历史及进展进行了回顾,重点阐述了国内外层状及非层状硅质岩的研究现状及研究进展。结合我国二叠纪硅质岩分布特征,分别论述了洋脊、洋盆及陆缘3种沉积环境下硅质岩的硅质来源、沉积环境、成因机理等方面的研究成果。以全球二叠纪硅质沉积事件的成因机理为切入点,讨论了东特提斯地区二叠纪硅质岩的研究现状及存在问题,提出我国二叠纪硅质岩的成因机理与联合古陆西北缘硅质沉积事件截然不同,可能是由于热源(热水系统)而非冷源(海洋冰川)导致的二叠纪硅质富集。我国扬子地区完全能够建立研究二叠纪硅质沉积事件的典型剖面。

引用

页码：1189 / 1200

页数：12

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