[meteorite-list] YOU GOT YOUR CHOCOLATE IN MY PEANUT BUTTER! portales q

From: Frank Cressy <fcressy_at_meteoritecentral.com>
Date: Thu Apr 22 10:01:34 2004
Message-ID: <001c01c21a56$7d3aa460$0689ab40_at_pavilion>

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Hi Harlan,

Interesting question. I think that it is believed that PV was formed by =
a large impact(s) on an asteroid which melted and mixed the original =
material. Four possible scenerios readily come to my mind that might =
explain the mixture of low density stone and high density metal we see =
in Portales Valley together with the indication of slow cooling shown by =
the Widmanstratten pattern.=20
 1). There might have been differentiation in the melt and what we are =
seeing is a transitional zone between the metal and the stoney =
sections, or
2). The original melt might have had a low viscosity which did not allow =
easy differentiation, or
3). Low gravity on the asteroid didn't allow differentiation, or
4). Molten metal injected into the stoney material because of an impact =
caused the brecciation. There wasn't a large enough melt area for any =
differentiation to occur.=20

These are the three main reasons I can think of; the real reason is =
probable some combination of all three. We need to also remember that we =
are only able to see a small portion of what was a large event.=20
Regards,
Frank
  ----- Original Message -----=20
  From: harlan trammell=20
  To: meteorite-list_at_meteoritecentral.com=20
  Sent: Saturday, June 22, 2002 11:54 AM
  Subject: [meteorite-list] YOU GOT YOUR CHOCOLATE IN MY PEANUT BUTTER! =
portales q


  more q's on the strangest piece of skyrock to ever hit the planet: =
about the metal first: it is obvious that it took some time for it to =
cool because there is a nice crystal pattern it in. during the molten =
time, why didn't the stone chunx float out to the surface and cause a =
differentiated asteroid, w/ the rock on the surface, to form. is molten =
iron so less dense in that state that the stone could have perhaps been =
neutrally buoyant thus causing this consistant mix of rock and metal =
like chocolate in peanut butter? even if there is no gravity around , =
there is always buoyancy due to differences in densities. any =
comments.....


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<DIV>Hi Harlan,</DIV>
<DIV>&nbsp;</DIV>
<DIV>Interesting question. I think that it is believed that PV was =
formed by a=20
large impact(s) on an asteroid which melted and mixed the original=20
material.&nbsp;Four possible scenerios readily come to my mind that =
might=20
explain the mixture of low density stone and high density metal we see =
in=20
Portales Valley together with the indication of slow cooling shown by =
the=20
Widmanstratten pattern. </DIV>
<DIV>&nbsp;1). There might have been differentiation in the melt and =
what we are=20
seeing is a transitional&nbsp; zone between the metal and the stoney =
sections,=20
or</DIV>
<DIV>2). The original melt might have had a low viscosity which did not =
allow=20
easy differentiation, or</DIV>
<DIV>3). Low gravity on the asteroid didn't allow differentiation, =
or</DIV>
<DIV>4). Molten metal injected into the stoney material because of an =
impact=20
caused the brecciation. There wasn't a large enough melt area for any=20
differentiation to occur. </DIV>
<DIV>&nbsp;</DIV>
<DIV>These are the three main reasons I can think of; the real reason is =

probable some combination of all three. We need to also remember that we =
are=20
only able to see a small portion of what was a large event. </DIV>
<DIV>Regards,</DIV>
<DIV>Frank</DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A href=3D"mailto:skyrox_at_hotmail.com" =
title=3Dskyrox_at_hotmail.com>harlan=20
  trammell</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
  href=3D"mailto:meteorite-list_at_meteoritecentral.com"=20
  =
title=3Dmeteorite-list_at_meteoritecentral.com>meteorite-list@meteoritecentr=
al.com</A>=20
  </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Saturday, June 22, 2002 =
11:54=20
  AM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [meteorite-list] YOU =
GOT YOUR=20
  CHOCOLATE IN MY PEANUT BUTTER! portales q</DIV>
  <DIV><BR></DIV>
  <DIV>
  <DIV>
  <DIV>
  <DIV>more q's on the strangest piece of skyrock to ever hit the =
planet: about=20
  the metal first: it is obvious that it took some time for it to =
cool&nbsp;=20
  because there is a nice crystal pattern it in. during the molten time, =
why=20
  didn't the stone chunx float out to the surface and cause a =
differentiated=20
  asteroid, w/ the rock on the surface, to form. is molten iron so less =
dense in=20
  that state that the stone could have perhaps been neutrally buoyant =
thus=20
  causing this&nbsp;consistant mix of rock and metal like =
chocolate&nbsp;in=20
  peanut butter? even if there is no gravity around , there is always =
buoyancy=20
  due to differences in densities. any =
comments.....</DIV></DIV></DIV></DIV><BR=20
  clear=3Dall>
  <HR>
  Join the world&#8217;s largest e-mail service with MSN Hotmail. <A=20
  href=3D"http://g.msn.com/1HM505401/47">Click=20
  Here</A><BR>______________________________________________ =
Meteorite-list=20
  mailing list Meteorite-list_at_meteoritecentral.com=20
  =
http://www.pairlist.net/mailman/listinfo/meteorite-list</BLOCKQUOTE></BOD=
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Received on Sat 22 Jun 2002 09:37:06 PM PDT


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