新洲金矿床元素构造动力分异作用初探

元素在不同构造动力学条件下的富集规律越来越受到重视,作者首次提出元素的离子容重的概念,并作为一个重要参数,探讨了新洲金矿床中不同力学性质含金构造带中元素的动力分异作用及其机制,认为在受偏张性构造动力学条件控制的石英脉型金矿体中富集离子容重小的元素,离子容重大的元素趋于贫化,而在受压性构造动力学条件控制的蚀变糜棱岩型金矿体中富集离子容重大的元素,离子容重小的元素趋于贫化.

A STUDY ON TECTONIC-DYNAMICAL DIFFERENTIATION OF ELEMENTS IN XINZHOU GOLD DEPOSIT, GUANGDONG PROVINCE, SOUTHERN CHINA

It is taken more and more importance to the enrichment characteristics of elements at different tectonic-dynamical condition. In the paper, the author advances a new concept of element ionic density in the first time, takes the ionic density of element to the study on tectonic-dynamical differentiation and discusses elements mechanism in Au-bearing structural zone of different mechanical property in Xinzhou gold deposit. It is considered that there is a enrichment of elements with a light ionic density and a dilution of elements with a weight ionic density in the quartz-type gold ore bodies controlled by tensional tectonic-dynamical condition, and there is a enrichment of elements with a weight ionic density and a dilution of elements with a light ionic density in the altered mylonite-type gold ore bodies controlled by compressive tectonic-dynamical condition.