PSN-L Email List Message

Subject: Re: Re[2]: more regional P phases
From: John Hernlund hernlund@.......
Date: Sun, 13 Aug 2000 23:31:49 -0700 (MST)

On Sun, 13 Aug 2000, Angel Rodriguez wrote:
> In the book Anatomy of seismograms by Ota Kulhanek page 22 he says
> that the P* and S* are sometimes alternatively referred to as the Pb
> and Sb, the subscript b referring to basaltic layer

That is an interesting name for it, especially when there is no characteristic
basalt layer in most regions of continental crust, but that seems to clinch
the origin of the name at least!

John Hernlund
Department of Geological Sciences
Arizona State University
E-mail: hernlund@.......


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