On the interpretation of mantle discontinuities |
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| Authors: | Lin-Gun Liu |
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| Institution: | Research School of Earth Sciences, Australian National University, Canberra, A.C.T. 2600 Australia |
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| Abstract: | Seismic discontinuities in the mantle are conventionally interpreted to be caused by phase transformations observed in the individual mineral species (including, to some extent, solid solution). Recent investigations, however, indicate that there are many difficulties in interpreting these discontinuities in terms of phase transformations alone. It is suggested that some of the seismic discontinuities in the mantle are due to phase transformations in the individual minerals, some due to interactions between the minerals, and still others due to compositional changes. |
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