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Open AccessArticle

Water, Hydrous Melting, and Teleseismic Signature of the Mantle Transition Zone

1
Department of Earth and Environmental Sciences, Macquarie University, 12 Wally’s Walk, Sydney, NSW 2109, Australia
2
Department of Earth Sciences, Uppsala University, Villavägen 16, 75236 Uppsala, Sweden
*
Author to whom correspondence should be addressed.
Geosciences 2019, 9(12), 505; https://doi.org/10.3390/geosciences9120505
Received: 2 October 2019 / Revised: 27 November 2019 / Accepted: 29 November 2019 / Published: 4 December 2019
(This article belongs to the Section Geophysics)
Recent geophysical and petrological observations indicate the presence of water and hydrous melts in and around the mantle transition zone (MTZ), for example, prominent low-velocity zones detected by seismological methods. Experimental data and computational predictions describe the influence of water on elastic properties of mantle minerals. Using thermodynamic relationships and published databases, we calculated seismic velocities and densities of mantle rocks in and around the MTZ in the presence of water for a plausible range of mantle potential temperatures. We then computed synthetic receiver functions to explore the influence of different water distribution patterns on the teleseismic signature. The results may improve our understanding and interpretation of seismic observations of the MTZ.
Keywords: mantle transition zone; water; receiver functions mantle transition zone; water; receiver functions
MDPI and ACS Style

Fomin, I.; Schiffer, C. Water, Hydrous Melting, and Teleseismic Signature of the Mantle Transition Zone. Geosciences 2019, 9, 505.

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