Abstract
This work has been supported by the UK Natural Environment Research Council under grant NE/I028017/1. Seismic equipment was provided by the NERC Geophysical Equipment Facility (SEIS-UK) under loan 947. Additional funds were provided by the Bogazici University Scientific Research Projects (BAP) under grant 6922 and the Turkish State Planning Organization (DTP) under the TAM project number 2007K120610. G.T. was supported by the Leeds-York Doctoral Training Partnership (SPHERES) of the Natural Environment Research Council (NERC), UK (NE/L002574/1).
Highlights
Subducted slabs are a major pathway for oceanic lithosphere, continental sediments, and volatiles to be transported into the lower mantle
The P-to-S conversions from the 410 and 660 are clearly visible arriving at ~45 s and ~65 s, slightly later (~2-3 s) than predicted by ak135. This could be due to the low S-wave velocities in the upper mantle beneath Anatolia (Fichtner et al, 2013a; Salaün et al, 2012; Zhu et al, 2015), but our dataset cannot rule out the possibility that both the 410 and 660 are located slightly deeper than average in this location
Summary and Conclusions This work studied a region of the upper mantle beneath north-western Anatolia, where the Cyprus slab passes through the mantle transition zone (MTZ)
Summary
Subducted slabs are a major pathway for oceanic lithosphere, continental sediments, and volatiles to be transported into the lower mantle. Constraining this process and the interaction of the slab with the mantle at different depths is essential for our understanding of the flux and storage of elements such as carbon and water into the lower mantle and has an impact on life and the long-term habitability of Earth (Dasgupta and Hirschmann, 2010; Schmandt et al, 2014). The mantle transition zone (MTZ) is bounded by two global seismic discontinuities located at depths of approximately 410 km and 660 km. The 410-km discontinuity ( „the 410‟) marks the transition from D-olivine to wadsleyite, whilst the 660 km discontinuity
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