FY05 LDRD Final Report The Innermost Inner Core: Fact or Artifact?
Description:
P'P' (PKPPKP) are P waves that travel from a hypocenter through the Earth's core, reflect from the free surface and travel back through the core to a recording station on the surface. Here we report the observations of hitherto unobserved near-podal P'P' waves (at epicentral distance < 10{sup o}) and very prominent precursors preceding the main energy by as much as 60 s. We interpret these precursors as a back-scattered energy from previously undocumented horizontally connected small-scale h…
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Date:
January 9, 2006
Creator:
Tkalcic, H; Flanagan, M P & Mogri, H
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Partner:
UNT Libraries Government Documents Department