Abstract
One of the most important tasks of seismology is to image the current state of Earth’s convective system. It is still an open and much debated question whether Earth’s mantle convects as a whole or whether there is layered convection bounded by the seismic discontinuity observed at 670km depth (e.g. [13],[12],[22],[9],[21],[1],[6],[16]). Recently, further evidence [16] to claims made earlier [4] was found indicating that at least in some subducting regions slabs — manifested by high-velocity anomalies — penetrate deep into the lower mantle, favoring the concept of whole mantle convection.
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Igel, H., Ita, J. (1997). The Effects of Subduction Zones on Teleseismic SH Waves: A Numerical Study. In: Fuchs, K. (eds) Upper Mantle Heterogeneities from Active and Passive Seismology. NATO ASI Series, vol 17. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-8979-6_33
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DOI: https://doi.org/10.1007/978-94-015-8979-6_33
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