: "Walter Branch" <[EMAIL PROTECTED]>
To: "Meteorite List"
Sent: Wednesday, August 29, 2007 7:14 PM
Subject: [meteorite-list] Meteorite Questions
Hello Everyone,
I have had plenty of time recently to ponder things such as meteorites. I
am also alone at home at present
It is a "jointed crater", determined by the geology of the area of impact.
http://science.nasa.gov/headlines/y2000/ast26sep_1.htm
Chuck
> Date: Thu, 30 Aug 2007 01:14:27 -0700
> From: "Jason Utas" <[EMAIL PROTECTED]>
> Subject: Re: [meteorite-list] Meteo
Hello Walter, All,
I'll tkae this apart bit by bit.
> For example, why does the rim of meteor crater appear "squared" in some
> photos, while in others it appears very round? Perspective? Lighting?
> Extremely highly localized tectonic shifting (back and forth)?
It has eroded into a somewhat re
I think what's lurking in this material is a wish to be able to predict.
Bill
> -Original Message-
> From: [EMAIL PROTECTED]
> Sent: Thu, 30 Aug 2007 00:43:00 -0500
> To: meteorite-list@meteoritecentral.com
> Subject: Re: [meteorite-list] Meteorite Questions
>
&
that the Universe leaves them
alone and does not mess with them...
Sterling K. Webb
- Original Message -
From: "Maria Haas" <[EMAIL PROTECTED]>
To: "TheMeteorite-list"
Cc: "Walter Branch" <[EMAIL PROTECTED]>
Sent: Thursday, August 30, 2007 2:5
Walter asked:
> Also, I have read that some meteoroids travel through space in streams and
> impact the Earth simultaneously (i.e., they have already broken up before
> they hit the Earth's atmosphere). How can this be? I would think that
> once
> a meteoroid has broken in space (most likely du
Hello Walter and List,
Now these are the kinds of threads that I love on this
list!
I have comments or responses on three of the
questions.
The first is the color of diogenites. My tatahouine
is definitely green, and my Bilanga is definitely not.
I first got really interested in meteorites bec
Walter branch wrote:
The small strewnfields are caused not by meteoroid streams, but by an
asteroid which is gravitationally clumped rocks and not a solid chunk. Because
they are just gravitationally attached to each other the earths gravity
probably starts separating them and then the
My understanding is that the geology of that area is karst (i.e.
limestone) , which forms in rectangular blocks. The transfer of the
energy of the explosion was enhanced in some direction and not in
others... resulting in the squarish shape.
Mark Abbott
Walter Branch wrote:
Hello Everyone,
Meteor Crater is pretty much square. I believe
weathering has a lot to do with it. Even a desert gets
a fair bit of rain in 50,000 years.
I think I read that the original crater has been half
filled with weathered material though why it would be
square following this is anyones guess. Why not (?) ,
Hello Everyone,
I have had plenty of time recently to ponder things such as meteorites. I
am also alone at home at present and am bored. Would some kind,
more-knowledgeable-than-me soul help me with some meteoritical questions.
For example, why does the rim of meteor crater appear "squared"
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