AW: [meteorite-list] Pseudotachylite

From: dellenit <dellenit_at_meteoritecentral.com>
Date: Wed Jul 20 17:47:51 2005
Message-ID: <000101c58dc1$5d9d4680$9300a8c0_at_hari>

Hi Bernd and list,

i know Rubins pub - but as you cited correct "pseudotachylite - LIKE "
veins - this is not the same then - it is just like as the word "pseudo"
itself which means something different... itself.

If something is like a meteorite - it is a meteorite wrong and NOT a
meteorite..

regards

Harold

-----Urspr?ngliche Nachricht-----
Von: meteorite-list-bounces_at_meteoritecentral.com
[mailto:meteorite-list-bounces_at_meteoritecentral.com]Im Auftrag von
bernd.pauli_at_paulinet.de
Gesendet: Wednesday, July 20, 2005 2:41 PM
An: Meteorite-list_at_meteoritecentral.com
Betreff: [meteorite-list] Pseudotachylite


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

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Received on Thu 21 Jul 2005 02:56:47 AM PDT


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