[meteorite-list] Oriented vs orientated with regard to meteorites

From: bernd.pauli_at_paulinet.de <bernd.pauli_at_meteoritecentral.com>
Date: Sat Nov 12 14:28:49 2005
Message-ID: <DIIE.0000003000003F95_at_paulinet.de>

Hello List,

Originally, "orientated" was only used to indicate that something inside a meteorite
was arranged or aligned in a certain way: a preferred direction in a crystal lattice,
in the matrix of a chondrite or in the matrix of an iron meteorite, etc.

Examples:

Borkut (L5) - elliptical chondrules are orientated.

Canyon City (IIIAB) - The individual 50-100 ? wide alpha-grains of the fields are differently
orientated, as is evidenced by the various orientations of the epsilon-structure in them.

DaG 995 (AEUC) - plagioclase contains small crystallographically orientated inclusions
of augite, pigeonite and silica.

A. Fujimura et al. (1983) Preferred orientation of phyllosilicate (001) in matrix of Murchison
meteorite and possible mechanisms of generating the orientated texture in chondrites
(Earth Plan.Sci.Lett. 66, 25-32).


But over time, especially since the 1980s, "orientated" also came to be used to
denote "flight-oriented". Examples:


El Carmen (H6) - A single, orientated mass weighing 629 g was found.

Lone Tree (H4) - An orientated, weathered mass of 20.676 kg was ploughed up.

Mount Margaret (L5) - A single, flight orientated stone was found.

Summerfield (L5) - A single orientated stone of 6.2 kg was found.

Waka (H6) - A single, orientated mass weighing 11.875 kg was found.


Cheers,

Bernd
Received on Sat 12 Nov 2005 02:28:46 PM PST