摘要
本文扼要介绍有关蛇绿岩的形成环境、成因类型划分及有关上地幔岩变形特征方面的新成果。
This article briefly deals with the original environment, the division of genetic types of ophiolites, and the deformation character of the upper mantle rocks. Ophiolite can originate not only in extensive oceans but also in finite oceanic basins, marginal seas, back-arc basin and fore-arc basins. Ophiolites are divided into four major genetic types on the expanding rate of paleooceanic crust. The upper mantle rocks have undergone five deformation stages of different tectonic levels. These stages are discribed as tectonic peridotite, peridotite mylonite, peridotite breccia, serpentinite mylonite and incohensive serpentinite.
出处
《地质科技情报》
CAS
CSCD
北大核心
1992年第4期35-40,共6页
Geological Science and Technology Information
关键词
蛇绿岩
糜棱岩
上地幔
Ophiolite, upper mantle, serpentinite mylonite
