[meteorite-list] Holbrook Mystery

From: BOORX4_at_aol.com <BOORX4_at_meteoritecentral.com>
Date: Thu Apr 22 10:25:35 2004
Message-ID: <19b.1480af25.2be7339a_at_aol.com>

Hi List Members,

 FYI
   It is a well known fact that metal detectors cannot find Holbrook
meteorites. One reason is the low metal content but the main reason is that
the detectors cannot be ground balanced. Now we have a logical reason for
this.
   The latest Arizona Geology Survey quarterly flyer, Vol. 33, No.2, summer
2003 shows that area from Holbrook south almost to Show Low, east to the New
Mexico border and west almost to Winslow is one huge SALT BASIN.
   The area where the Holbrook Meteorite fell shows a thickness of between
200-300 feet of halite and just east of this area is also a potassium rich
deposit. The halite deposits cover about 3500 sq. miles and the potassium
covers 600 sq. miles. The top of the salt basin is less than 1000 ft deep.
No metal detector is reaching that deep but enough halite is on the surface
to mess up any electronic detector.
Bottom line, leave your metal detector home when going to the Holbrook strewn
field.

Bob Boor
Tucson
Received on Sun 04 May 2003 11:25:14 PM PDT