本文選題：熱液金剛石壓腔 + 結(jié)晶實(shí)驗(yàn)　； 參考：《地學(xué)前緣》2017年05期

【摘要】：鎢是一種工業(yè)用途廣泛的稀有金屬,主要產(chǎn)于熱液型礦床。確定鎢元素遷移和沉淀的物理化學(xué)條件對(duì)于揭示熱液型鎢礦床的形成機(jī)制具有重要意義。本文應(yīng)用新型熱液金剛石壓腔(HDAC-VT)開展了(Fe,Mn)WO_4-Li_2CO_3-H2O體系的原位觀測(cè)結(jié)晶實(shí)驗(yàn),9組實(shí)驗(yàn)結(jié)果表明,黑鎢礦晶體的結(jié)晶溫度集中在560~500℃,結(jié)晶壓力主要集中在400~200MPa。黑鎢礦的溶解度隨體系內(nèi)CO_2組分相對(duì)含量的增加而增加;碳酸鋰的結(jié)晶導(dǎo)致CO_2組分的減少,誘發(fā)黑鎢礦的快速結(jié)晶,這指示出CO_2組分對(duì)鎢的遷移和沉淀具有重要作用。含礦流體中CO_2組分的散逸可能是黑鎢礦沉淀富集成礦的重要因素之一。
[Abstract]:Tungsten is a rare metal widely used in industry, mainly occurring in hydrothermal deposits. It is important to determine the physical and chemical conditions for the migration and precipitation of tungsten elements in order to reveal the formation mechanism of hydrothermal tungsten deposits. In this paper, a new type of hydrothermal diamond chamber HDAC-VT has been used to carry out the in situ observation crystallization experiments of Fehmanwo _ 4-Li2CO3-H _ 2O system. The results show that the crystallization temperature of wolframite crystals is 560,500 鈩，

本文編號(hào)：1931419