Body-Wave Imaging of Earth’s Mantle Discontinuities from Ambient Seismic Noise

P. Poli, M. Campillo, H. Pedersen, Lapnet Working Group

Wednesday 28 November 2012, by briandx // Publications

Body-Wave Imaging of Earth’s Mantle Discontinuities from Ambient
Seismic Noise.

P. Poli, M. Campillo, H. Pedersen, Lapnet Working Group.

Science 338, 1063 (2012)


Abstract

Ambient seismic noise correlations are widely used for high-resolution surface-wave imaging of
Earth’s lithosphere. Similar observations of the seismic body waves that propagate through the
interior of Earth would provide a window into the deep Earth. We report the observation of the
mantle transition zone through noise correlations of P waves as they are reflected by the
discontinuities associated with the top [410 kliometers (km)] and the bottom (660 km) of this zone.
Our data demonstrate that high-resolution mapping of the mantle transition zone is possible
without using earthquake sources.

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