[meteorite-list] no subject + lodranites

From: Bernd Pauli HD <bernd.pauli_at_meteoritecentral.com>
Date: Thu Apr 22 10:08:24 2004
Message-ID: <3D834014.5FC1C4D_at_lehrer.uni-karlsruhe.de>

Steve Arnold, Chicago, wrote:

> Hi list. Can anyone please tell me what Lodranite is????

NORTON O.R. (2002) Cambridge Encyclopedia of Meteorites,
Glossary, p. 344: A lodranite is a subclass of the primitive achon-
drites class showing only partial melting and differentiation. They
are related to acapulcoites. (See also p. 165: Primitive achondrites
- Acapulcoites and lodranites).

McSWEEN H.Y. (1999) Meteorites and Their Parent Planets
(Glossary, p. 292):

A primitive achondrite representing a residue from which modest amounts
of melt were extracted; related to acapulcoites. (See also pp. 142-144).

T.J. McCoy et al. (1992) Petrogenesis of the Lodranite-Acapulcoite
parent body (Meteoritics 27-3, 1992, A258):

Recent petrologic and isotopic investigations suggest that lodranites
and acapulcoites are the residues of varying degrees of partial melting,
consistent with an origin on a common parent body.

The fine-grained acapulcoites experienced partial melting of metal,
troilite and phosphates, while the coarse-grained lodranites experienced
silicate partial melting.

Bernd
Received on Sat 14 Sep 2002 09:56:36 AM PDT