Cluster of water molecules in garn
- journal_title：Geology
- Contributor：Wen Su ; Zhendong You ; Boling Cong ; Kai Ye ; Zhenqiu Zhong
- Publisher：Geological Society of America
- Date：2002-
- Format：text/html
- Language：en
- Identifier：10.1130/0091-7613(2002)030<0611:COWMIG>2.0.CO;2
- journal_abbrev：Geology
- issn：0091-7613
- volume：30
- issue：7
- firstpage：611
摘要
Through the use of transmission electron microscopy and infrared spectroscopy, hydrous components have been identified as hydroxyl and free water (H2O) in elongate garnet of ultrahigh-pressure eclogite from the Dabie Mountains, eastern China. The H2O occurs as clusters of water molecules and as hydroxyl in garnet; the clusters of water molecules are interpreted to have promoted elongation of garnet through hydrolytic weakening. The presence of hydrous species in ultrahigh-pressure garnet from continental-crust protoliths indicates that such protoliths are able to carry water into the mantle during the subduction of continental lithosphere.