[meteorite-list] Pseudotachylite

From: bernd.pauli_at_paulinet.de <bernd.pauli_at_meteoritecentral.com>
Date: Wed Jul 20 17:40:59 2005
Message-ID: <DIIE.0000001900003AF0_at_paulinet.de>

Hello Harold, Greg, and List,

Harold wrote (excerpt):

"... just some clarification, the term pseudotachy-
lite is only valid for earth friction melt rocks !"

This isn't quite true anymore because:

RUBIN A.E. (2003) Post-shock annealing and post-annealing shock: implications
for the thermal and shock histories of ordinary-chondrite parent bodies (Lunar
and Planetary Science XXXIV (2003), 1263.pdf):

.. In addition to long-recognized shock effects in olivine, pyroxene and plagioclase
(including the presence of high-pressure phases), petrographic shock indicators in OC
include silicate darkening [3], chromite veinlets [3], narrow glassy pseudotachylite-
like veins [4], ...

Best regards,
good night,

Bernd
Received on Wed 20 Jul 2005 05:40:57 PM PDT