...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Earth and Planetary Science Letters: A Letter Journal Devoted to the Development in Time of the Earth and Planetary System >Aqueous fluid connectivity in pyrope aggregates: water transport into the deep mantle by a subducted oceanic crust without any hydrous minerals
【24h】

Aqueous fluid connectivity in pyrope aggregates: water transport into the deep mantle by a subducted oceanic crust without any hydrous minerals

机译：火山岩聚集体中的水流体连通性：俯冲的洋壳将水运到深层地幔中，而没有任何含水矿物

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The effect of pressure and temperature on the dihedral angles of aqueous fluid in a pyrope matrix was investigated. Experiments were performed on an H_2O-pyrope system in a multianvil apparatus over the pressure and temperature ranges of 4-13 GPa and 900-1200 ℃, respectively. The dihedral angle of the fluid in contact with the pyrope exhibited a significant change at pressures around 8-9 GPa. The dihedral angles increased with increasing pressure up to 9 GPa. At pressures above 9 GPa, the dihedral angles were greater than 60°at temperatures below 1000 ℃. Therefore, the efficient percolation of aqueous fluid in a pyrope matrix is not feasible in the upper mantle and the transition zone. The fluid released from the breakdown reactions of the hydrous minerals lawsonite and phengite exists in the oceanic crust, which mainly consists of garnet in the upper mantle and transition zone. We conclude that a part of the aqueous fluid released from the hydrous minerals may be retained in the subducted oceanic crust, and transferred into the deep mantle by the subduction process.
机译：研究了压力和温度对发烟基质中水性流体二面角的影响。在多砧装置中的H_2O-绳索系统上分别在4-13 GPa和900-1200℃的压力和温度范围内进行了实验。与吡咯接触的流体的二面角在约8-9 GPa的压力下表现出显着变化。二面角随着压力的增加而增加，直至9 GPa。在高于9 GPa的压力下，低于1000℃的温度时二面角大于60°。因此，在上地幔和过渡带中，火山岩基质中水性流体的有效渗滤是不可行的。含水矿物质钙钠铝石和锂铁矿的分解反应释放出的流体存在于大洋地壳中，其主要成分为上地幔和过渡带的石榴石。我们得出的结论是，从含水矿物释放的一部分含水流体可能保留在俯冲的洋壳中，并通过俯冲过程转移到深地幔中。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号