PSN-L Email List Message
Subject: Re: Interesting article
From: "Geoff" gmvoeth@...........
Date: Wed, 30 Jan 2008 03:25:28 -0700
All it says is that they modled in a lab
a phenomena that seems to be real
and the seismic modle should be re-calculated
or reprogrammed to include this phenomena
When there exists an intense velocity change it is like
turning into a mirror and will reflect or refract
waves more intensely in that region just outside
the liquid outer core sort of like an increase in
the index of refraction or so I understand.
They do not say to me HOW this electrical
phenomena actually causes the effect
only that it is associated with it.
Regards;
geoff
----- Original Message -----
From:
To:
Sent: Tuesday, January 29, 2008 6:59 PM
Subject: Re: Interesting article
>
> In a message dated 29/01/2008, gpayton880@....... writes:
>
> Yes, Pete, that is an interesting theory. I wonder what is the "electrical"
> component of an earthquake that is measured by a seismograph? I thought
> all the seismic waves were physical movements. Comments out there?
>
>
> Hi Jerry,
>
> Note that the depths concerned are from 400 to 1800 miles - deeper than
> most earthquake sources. The para-magnetic properties of the iron compounds
> vary. You are unlikely to see electrical effects at the surface due to this,
> although there may be other surface electrical / magnetic effects.
> Seismometers do not measure changes in potential or magnetic fields, only physical
> movements.
>
> Regards,
>
> Chris Chapman
>
>
>
>
>
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