摘要
本文确认武陵－雪峰地块是一个具有太古代结晶基底和元古代褶皱基底、相对稳定的“双基底”的微型克拉通，它有别于地块周边块体的高波速地壳和高阻、高密度刚性上地幔、巨厚的岩石圈厚度以及巨型深断裂带，为金刚石原生矿床的形成提供了最佳深部构造条件。在建立扬子克拉通原生金刚石成矿与古板块构造演化模式的基础上，提出了金刚石原生矿床的主成矿期，并进行了成矿带划分和找矿预测，初选了找矿靶区，指出了找矿方向。
This article affirms Wuling～Xuefeng terrian is with the Archean crystalline basement,the Proterozoic foldbasement and the relatively stable bi-basement micro-craton,it is difference with these terrians around that have highe wave velocity of the crust,the higher resistance and density of the rigidity upper mantle,the very thick lithosphere,and exist the deep and big faultzones,they provide the best depth structural conditions for the primary diamond deposit forming.Basing on the primary diamond metallogency in craton and the palaeo-plate structure evoluation model,ths author puts forward the main metallogenic period of the primary diamond deposits,divides the metallogenis belt and points out the orientation of looking for minerals.
出处
《湖南地质》
1999年第1期21-28,共8页
Hunan Geology
关键词
原生金刚石矿
成矿预测
金刚石矿床
矿床地质
Primery diamond ore,Metallogenic forecasting,Looking for minerals of Geo-physics and Geo-chemistry Hunan
