Certainly the best collection of observations set to text I've seen. Thanks
for digging up the details Fred. This also goes into detail as to the kind of
structures that can be seen over the various faces of the meteoroids
orientations.
One exception: Yes glassy is a term used to describe
Taking time out during my expedition to the
Wetumpaka astrobleme...
--- [EMAIL PROTECTED] wrote:
The heating/ cooling caused the crust to crystallize
like nothing I have seen before...
Not picking on you Tom but I am using this as a segway
to speak to fusion crust again. One of the reasons I
Marcin sez:
If spacimen stay in my room for year and its stable, then Im sure its
stable
enough to stay stable for years. Ofcourse there could be alvays someone who
have skills to make rusty not only my morasko, but also Taza or Chinga :)
I regret to say that I am one of those people who has
Hi Marcin-ho,
Does the crust after these millenium still look like you took a high
temperature blow torch to steel and watched it turn rainbowish colores, or
are we talking about an old magnetitated surface that has been exposed to
the elements and kept certain characteristics of its original
Oops, make that desert varnish doesn't count as the original good stuff...
Hi Marcin-ho,
Does the crust after these millenium still look like you took a high
temperature blow torch to steel and watched it turn rainbowish colores, or
are we talking about an old magnetitated surface that
Oops, make that desert varnish doesn't count as the original good stuff...
Hi Marcin-ho,
Does the crust after these millenium still look like you took a high
temperature blow torch to steel and watched it turn rainbowish colores, or
are we talking about an old magnetitated surface that
En un mensaje con fecha 01/08/2004 1:08:33 PM Mexico Standard Time, [EMAIL PROTECTED] escribe:
I assume (unless I miss something important) that a meteorite falling on
Mars would not carry any kind of fusion crust because of the particular tiny
atmosphere (friction and melting minimized or nil,
Hi,
I have long argued for a fusion crust scale (like the weathering shock
level scale) only for specifying individual specimens
What about something like an 0-6 'FC' scale (FC=Fusion Crust)
FC 0 for none
1 ~Tiny Piece of crust
2 ~33%
3 ~50% Fusion Crust
4 ~66%
5 ~83%
6
I often think the same thing. The only problem then is
determining the grade of the crust. Eg, fresh, weathered, partly weathered,
discoloured etc. Not a bad idea though!!!
Cheers,
Jeff KuykenI.M.C.A. #3085www.meteorites.com.auwww.meteoritesaustralia.com
- Original Message -
That sounds good but there are so many degrees of crust. Thick primary,
double thick primary, primary ranging into secondary with metallic splatters
and thin secondary that ranges suddenly into a zero crust pristine matrix.
Fine misty crust mixed with matrtix and metal that that fogs over the
Bill,
Yes, but when people sell 'Individual's' they 'usually' only specify the
Primary and Secondary fusion crust in %. I agree you can have many
variations and one could write a whole page describing fusion crust of
any individual meteorite but everything will fall into the 6 categories.
(It's
Hi,
I'm would guess that when dealers say a certain percentage of crust,
they're using the old eyeball-meter.
Human approximation for areas is fairly accurate: Who ate the last
quarter pizza? He's about 50% bald on top.
Sterling
12 matches
Mail list logo
