[meteorite-list] Chondrule Tidbits

[bernd.pauli at paulinet.de]

HUTCHISON R. (2004) Meteorites: A Petrologic, Chemical, and
Isotopic Synthesis (Cambridge Planetary Science Series, pp. 506).

p. 56: "Chondrules are objects that were wholly or partly molten before
or during the accretion period(s) that led to the formation of chondrites".

NORTON O.Richard. (2002) The Cambridge Encyclopedia
of Meteorites, Glossary, p. 342:

"Spherical to subspherical millimeter-sized bodies of igneous origin
in ordinary chondrites, carbonaceous chondrites (except CI), enstatite
chondrites and R chondrites".

McSWEEN H.Y. (1999) Meteorites and Their Parent
Planets (Cambridge University Press, Glossary, p. 288):

"Millimeter-sized spherule of rapidly cooled silicate
melt, found in abundance in chondritic meteorites."

WASSON J.T. (1974) Meteorites: Classification and Properties
(Springer-Verlag, Berlin. 316 pp., Glossary, pp. 242-243):

"Although used by some authors to designate any mm-sized spheroidal
body in a meteorite, usage should be restricted to those bodies which
formed as molten droplets by the same process or processes which
produced the chondrules observed in chondrites. Spheroidal bodies
which have not been molten, or which may have formed by processes
other than those which formed the chondrite chondrules, should be
called chondrule-like objects."


Good night, it is
late here,

Bernd