[meteorite-list] Possible Meteorite Impact Structure Found Off San Clemente Island, California

From: Robert Verish <bolidechaser_at_meteoritecentral.com>
Date: Thu Apr 22 10:22:36 2004
Message-ID: <20030611203617.36458.qmail_at_web80510.mail.yahoo.com>

Hello Paul and List,

I would sure be interested in the proposed age for
this structure. I didn't see anything mentioned about
this in the abstract.

Depending upon the age of this supposed impact, there
should still be some evidence in the geologic record
of tsunami debris deposits somewhere along the
California coast. Aside from the Early-Middle Miocene
San Onofre Breccia (a marine deposit), I'm not aware
of any continental deposits that would fit this
description.

Any suggestions?

Bob V.

----------------- Original Message -----------------

meteorite-list] Possible Meteorite Impact Structure
Found Off San Clemente Island, California
Paul Heinrich lenticulina1_at_yahoo.com
Wed, 11 Jun 2003 11:58:18 -0700 (PDT)

------------------------------------------------

Goldfinger, C., Legg, M. R., Milstein, R. L.,
Nicholson, C., and Kamerling, M., 2002, Large
Impact Structure, offshore Southern California?
Geological society of America Cordilleran
Section - 98th Annual Meeting (May 13-15, 2002),
Session No. 23 Impact Structures.

http://gsa.confex.com/gsa/2002CD/finalprogram/abstract_35124.htm
http://gsa.confex.com/gsa/2002CD/finalprogram/session_3075.htm

Large sub-circular structure, 29 km in diameter,
located by bathymetric surveys on the "California
Continental Borderland. The center of the feature
lies about 70 km west of the San Diego County
coastline just east of San Clemente Island."
It has a central dome, annular depression, and
raised rim.

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Received on Wed 11 Jun 2003 04:36:17 PM PDT