PSN-L Email List Message
Subject: Re: ebay auction
From: BOB BARNS royb1@...........
Date: Wed, 28 Jul 2004 20:09:59 -0400
Doug,
Thanks for taking the time to characterize these things. Could it be
used to find subsurface water?
Bob Barns
PS:The "photo of borehole geophones" on your website did not come up
for me.
Doug Crice wrote:
> This is an exploration seismograph (not an earthquake seismograph) designed
> for refraction surveys using a sledgehammer as an energy source. This type
> of instrument is commonly used to map subsurface geology (e.g. depth to
> bedrock) down to a maximum of 30 meters. It looks like everything is there
> except the aluminum striker plate and of course a sledgehammer.
>
> Read about refraction surveys here
> ftp://geom.geometrics.com/pub/seismic/Literature/s-tr2.pdf
>
> Doug Crice
> Geostuff http://www.georadar.com/geostuff.htm
> 12996 Somerset Drive phone 1-530-274-4445
> Grass Valley, CA 95945 USA fax 1-530-274-4446
>
>
> -----Original Message-----
> From: psn-l-request@.............. [mailto:psn-l-request@............... On
> Behalf Of BOB BARNS
> Sent: Wednesday, July 28, 2004 10:54 AM
> To: psn mail
> Subject: ebay auction
>
> Hi gang,
> SEISMOGRAPH scientific instrument by GEOMETRICS nr Item
> number:
> 2259633751
> ends Aug. 2
> Bob Barns
>
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