大别山超高压榴辉岩中结构水的赋存状态及其地质意义

Translated title of the contribution: Confirmation and implications of structural water in ultra-high pressure eclogites from Dabie Mountains

Xiao Yu Fan*, Xiu Ling Wu, Da Wei Meng, Li Wu Huang, Fan Sun, Shu Min Cao, Jian Ping Zheng

*Corresponding author for this work

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The nominally anhydrous minerals (NAMs) such as garnets and omphacites in Ultrahigh pressure eclogites in the Shima and Yingshan areas from Dabie Mountains were investigated by Fourier transform infrared spectroscopy (FTIR). It reveals that the NAMs could contain hydrogen occurring as hydroxyl (OH) or molecule H2O. It was found that the water contents are not uniform in the NAMs from different areas, and from the different grains at the same area to the different position in the same grain. the structural water contents of the omphacites at Shima and Yingshan are varied from 90 × 10-6-1 670 × 10-6 and from 110 × 10-6-710 × 10-6 respectively; while the garnets are from 510 × 10-6-830 × 10-6 and 0-180 × 10-6 respectively. The influence of structural water on the eclogites deformation and the relationship between structural water and fluid inclusions in NAMs are initially discussed in association with the related research result of former academicians.

Original languageChinese
Pages (from-to)24-29
Number of pages6
JournalKuangwu Yanshi
Volume26
Issue number2
Publication statusPublished - Jun 2006
Externally publishedYes

Keywords

  • Dabie Mountains
  • Garnet
  • Infrared spectroscopy
  • Omphacite
  • Structural water

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    Fan, X. Y., Wu, X. L., Meng, D. W., Huang, L. W., Sun, F., Cao, S. M., & Zheng, J. P. (2006). 大别山超高压榴辉岩中结构水的赋存状态及其地质意义. Kuangwu Yanshi, 26(2), 24-29.