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 Publications//
Body-Wave Imaging of Earth’s Mantle Discontinuities from Ambient
P. Poli, M. Campillo, H. Pedersen, Lapnet Working Group.
Science 338, 1063 (2012)
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.