王朴;刘嵘;王国灿;

• 1:中国地质大学研究生院
• 2:中国地质大学地球科学学院
• 3:中国地质大学地球科学学院 武汉430074
• 4:武汉430074

摘要(Abstract)：

根据超高压岩石的退变质反应20Jd+3Di+H2O=12Ab+2An+Tar+3Na2O和18Jd+3Di+2Aeg+H2O=12Ab+2An+Fe-Tar+3Na2O,利用拟合的绿闪石和铁质绿闪石的热力学数据,在平衡热力学原理的基础上,建立了两个反应的压力计表达式:p=0.001 6(t+273)-0.028lnK+0.321K=(aPlNaAlSi3O8)12·(aPlCaAl2Si2O8)2·aTarNa2CaMg3Al2[Si6Al2O22](OH)2·(aSodNa2O)3(aCNpaxAlSi2O6)20·(aCpxCaMgSi2O6)3·aWatH2O经中国安徽省潜山县双河和西阿尔卑斯高压超高压变质带的验证及与角闪石-斜长石温度计的对比,其计算结果基本合理,表明这一新的压力计具有较好的应用价值。

关键词(KeyWords)： Cpx-Q-Pl-Tar压力计;硬玉石英岩;冠状体;结构拟合法

Abstract:

Keywords:

基金项目(Foundation): 中国地质大学(武汉)地质学理科基地专项基金项目(40334037)

作者(Author): 王朴;刘嵘;王国灿;

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DOI:

参考文献(References)：

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