[meteorite-list] Frequency of Meteorite Falls

From: Robert Verish <bolidechaser_at_meteoritecentral.com>
Date: Fri Jul 15 12:49:45 2005
Message-ID: <20050715164944.74586.qmail_at_web51709.mail.yahoo.com>

A report in the appendix of a 1991 MIAC report:

http://www.usask.ca/psychology/sarty/miacCD1/Minutes/35oct91.htm

CANADIAN SPACE AGENCY

Minutes of Thirty-Fifth Meeting of
Associate Committee on Meteorites
Herzberg Institute, 100 Sussex Drive, Ottawa,
October 18,1991

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APPENDIX 3

ASSOCIATE COMMITTEE ON-METEORITES
Research Subcommittee Report for 1991
Submitted by R.A.F. Grieve

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2. Frequency of Meteorite Falls

Eleven years of data from the MORP network were
previously analysed to derive the frequency of
meteorite falls on Earth as a function of mass
(Halliday, Blackwell and Griffin; Meteoritics, 24,
173-178, 1989). This paper was followed by two
independent studies of the numerous finds from
wind blowouts in Roosevelt County, New Mexico
(Zolensky et al., Meteoritics, 25, 11-17, 1990 and
G.R. Huss, Meteoriticsq, 25, 41-56, 1990).

These latter papers found very high infall rates that
are quite incompatible with the MORP experience, We
submitted a further paper on the problem that passed
the referee stage early in 1991. Preprints of two
further papers then appeared that showed the residence
times of the meteorites in New Mexico were several
times the previously accepted upper limit, essentially
removing the discrepancy, Our paper, with an added
note on this development, should appear in
Meteoritics, 26, no, 3, September 1991.
Received on Fri 15 Jul 2005 12:49:43 PM PDT