太古宙克拉通岩石圈地幔研究现状述评

本文主要介绍了太古富克拉通岩石圈地幔的一些基本特征，国内外有关早期地幔研究的最新进展和发展趋势，主要包括以下几方面：１．太古宙岩石圈地幔的岩石组成和化学组成；２太古亩地幔同位素体系；３．太古亩地幔热状态和结构特征；４．幔内地质事件。通过研究主要获得以下认识：１．早太古代岩石圈演化以壳－幔分异作用为主，晚太古代以壳内分界作用为主；２．太古宙存在一个又厚又冷（２００ｋｍ）的岩石圈；３馒内地质作用与克拉通化存在成因上的联系。

REVIEW ON ARCHEAN CRATON LITHOSPHERIC MANTIE STUDY PROGRESS

This paper intends to describe some basic characters of Archean craton lithosphericmantle, and its current progress, includes: 1. petrological and chemical composition of Archeanlithospheric mantle; 2. isotopic system of Archean mantle; 3. therml state and structure ofArchean mantle; 4. intra-mantle geological events. According to these informations, severalaspects of new conclusion and recognition are given as follows: 1. Early Archean (3. 0Ga)mantle evolution is mainly of crustrnantle differentiation while the last Archean (3. 0 -2. 5Ga)mantle evolution is mainly of intracrustal differentiation; 2. There were a thick and ed solidlithosphere in Archean Era, its thiekness reaches 150 - 200km; 3. Archean cratonization probablydepends on intra-mantle geological action.