Yee, Tae-Gyu; Rhie, Junkee; Tkalcic, Hrvoje
Studies of velocity structure in the Earth's inner core and its volumetric variations illuminate our understanding of inner core dynamics and composition. Here we use an extensive number of seismograms recorded by the Hi-net array to construct complete empirical curves of PKPBC-PKPDF differential traveltimes. The nature of these curves implies that significant variations in traveltimes are accumulated during the passage of PKPDF waves through the uppermost inner core and rules out outer core...[Show more]
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