Extracting olivine (Fo–Fa) compositions from Raman spectral peak positions

Geochimica et Cosmochimica Acta, no. 24 (2006): 6201-6222

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The dominant feature of the olivine Raman spectrum is a doublet that occurs in the spectral region of 815–825cm−1 (DB1) and 838–857cm−1 (DB2). These features arise from coupled symmetric and asymmetric stretching vibrational modes of the constituent SiO4 tetrahedra. The frequencies of both peaks show monotonic shifts following cation subs...更多

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