[meteorite-list] Dho 025 lunar

From: bernd.pauli_at_paulinet.de <bernd.pauli_at_meteoritecentral.com>
Date: Mon Feb 21 07:31:29 2005
Message-ID: <DIIE.000000110000336B_at_paulinet.de>

> Anyone have any thoughts regarding the nature
> of the vesicular clasts in the lunar Dho 025?

> The clasts themselves are a couple of mm across
> and contain numerous little bubbles / vesicles.

> I was wondering where the vesicles come from,
> what gases were trapped and so on.... !

These melt pockets indicate intense shock after compaction by an
impact event on the Moon. You are probably looking at melt glass
(shock-melted plagioclase, anorthite and maybe silica glass) and
the gases that were trapped are probably noble gases (not sure
with regard to the noble gases).

Best wishes,

Bernd
Received on Mon 21 Feb 2005 07:31:13 AM PST