期刊文献+

大别山榴辉岩的退变质过程与流体作用 被引量:1

在线阅读 下载PDF
导出
摘要 根据矿物成分及其结构演变,将大别山榴辉岩的退变质过程分为三个阶段:贫流体阶段、弱流体阶段和富流体阶段。贫流体阶段发生于榴辉岩相环境中,其主要作用是柯石英-石英和文石- 方解石等同质多象转变、石榴子石和绿辉石等的重结晶,以及绿辉石中硬玉和钠长石的固溶体出溶等。弱流体阶段发生于榴辉岩相退变质的晚期,含水矿物闪石、绿帘石和云母,以及钠长石等低压矿物大量形成之前,其标志是蓝晶石变斑晶和金红石脉的形成,以及浸染状金红石的富集成矿。富流体阶段始于低级角闪岩相退变质环境,并可能一直持续到近地表处。该阶段以出现大量含水和挥发份的矿物(如闪石、绿帘石、多硅白云母、钠云母、黑云母、磷灰石和碳酸盐等)为特征。围绕石榴子石和绿辉石的闪石次变边。
出处 《地质学报》 EI CAS CSCD 北大核心 2002年第2期287-287,共1页 Acta Geologica Sinica
  • 相关文献

同被引文献36

  • 1Andersen T, Burke E A J, Austrheim H. 1989. Nitrogen-bearing, aqueous fluid inclusions in some eclogites from the Western Gneiss region of the Norwegian Caledonides. Contrib. Mineral Petrol. , 103: 153~165.
  • 2Andersen T, Austrheim H, Burke E A J, Elvevold S. 1993. N2 and CO2 in deep crustal fluids: evidence from the Caledonides of Norway. Chem. Geol. , 108: 113~132.
  • 3Bakker R J. 1999. Optimal interpretation of microthermometrical data from fluid inclusions: thermodynamic modelling and computer programming. Habilitation thesis. Univ. Heidelberg, Germany.
  • 4Bowers T S, Helgeson H C. 1983. Calculation of the thermodynamic and geochemical consequences of non-ideal mixing in the system H2O-CO2-NaCl on phase relations in geologic systems: Equation of state for H2O-CO2-NaCl fluids at high pressures and temperatures. Geochimica et Cosmochimica Acta, 47:1247 ~ 1275.
  • 5Franz L, Romer R L, Klemd R, Schmid R, Oberhansli, Wanger T, Dong S. 2001. Eclogite-facies quartz veins within metabasites of the Dabie Shan (eastern China): pressure-temperature-time deformation path, composition of the fluid phase and fluid flow during exhumation of high-pressure rocks. Contrib. Mineral. Petrol. , 141: 322~346.
  • 6Fu B, Touret J L R, Zheng Y F. 2001. Fluid inclusions in coesite bearing eclogites and jadeite quartzite at Shuanghe, Dabie Shan (China). J. Metamorphic Geol., 19: 529~545.
  • 7Johnson E L. 1991. Experimentally determined limits for H2O-CO2NaCl immiscibility in granulites. Geology, 19: 925 ~ 928.
  • 8Kerrick D M, Jacobs G K. 1981. A modified Redlich-Kwong equation for H2O, CO2 and CO2-mixtures at elevated pressures and temperatures. Amer. J. Sci. , 281: 735~767.
  • 9Klemd R, van den Kerkhof A M, Horn E E. 1992. High-density CO2-N2 inclusions in eclogite-facies metasediments of the Munchberg gneiss complex. Contrib. Mineral. Petrol., 111:409~419.
  • 10Klemd R, Brocker M, Schramm J. 1995. Characterization of amphibolite-facies fluids of Variscan eclogites from the Orlica Snieznik dome (Sudetes, SW Poland). Chem. Geol. , 119:101 ~113.

引证文献1

二级引证文献14

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部