PSN-L Email List Message

Subject: Geophone layout
From: "Thomas" tlooi@...........
Date: Thu, 20 Jan 2000 01:26:44 -0500

Hi everyone,

I am 4th year student working a project using geophones to measure ice
thicknes. Is there a special method to layout the geophones to get an
accurate profile an induced vibration? The purposal is to generate an
acoustic pulse through possibly several kilometers of ice and have the
geophones detect this pulse and derive the ice thickness. Would anyone have
suggestions on a detonation mechanism? I've heard people use 1 kg of
dynamite for 1 km of ice.

As you can see, I am not too familiar with geophones but I do know they work
like an accelerator. If anyone knows of a good book, please suggest it
because none of our group members are geology people.

Thanks alot for your time.

Thomas Looi
Aerospace Engineering
University of Toronto


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Larry Cochrane <cochrane@..............>