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OH-bearing planar defects in olivine produced by the breakdown of Ti-rich humite minerals from Dabie Shan (China)

Hermann, Joerg; Fitz Gerald, John; Malaspina, N; Berry, Andrew; Scambelluri, Marco


The partial breakdown of Ti-chondrodite and Ti-clinohumite during exhumation from ultra-high pressure to amphibolite facies conditions in garnet-pyroxenites from Dabie Shan (China) produces coronas of olivine coexisting with ilmenite blebs. Fourier transform infrared (FTIR) spectra of this newly formed olivine exhibit absorption bands in the hydroxyl-stretching region. Two intense peaks were observed at 3,564 and 3,394 cm-1, identical in energy to peaks in Ti-clinohumite. Transmission electron...[Show more]

CollectionsANU Research Publications
Date published: 2007
Type: Journal article
Source: Contributions to Mineralogy and Petrology (Electronic)
DOI: 10.1007/s00410-006-0155-7


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