Good evening Dirk (MEZ 20:40)
Hello list,
thank you for your comment to possible impact structure in Australia
(Northeast of Henbury).
I have now noticed the altitude funktion of GE (Mouse shifting).
Hunting impact sites was a hobby of me about
nearly 40 years ago, when I was employed in oil prospection companies.
My job was analysing seismic waves on
an IBM 7060 computer which was at that time one of the fastes of the
world. often I found in the waves an echo
of compressed limestone. After a long pause I started again in the 90s
visiting the german structures
Noerdlingern Ries and Steinheimer Becken. At that time it was aloud to
prospect the scene as hobby
mineralogist and I found some very nice cones. Today it is forbidden
and I use GOOGLE.
Now my answer to your comment:
In a desert area a 1 meter higher level around a ring of trees must not
be the a hill. It could be a dune of
sand. Remember! During impact the crater wall inside is hard forced by
shearing forces and the crater center
is forced by hard pressure. After years of weathering the crater will
be filled with sand and everytime when
it becames wet the ring of sheared limestone around the compressede
center takes off the water and the sand
enters the higher porosity. It sinks and build the water reservoir for
the vegetation.So it might be a filled
crater. If you compare it against the small Henburies you will see the
same eff
ect.
My theory is that the Henbury cluster is not the total impact area and
that Boxhole is a crater of the cluster
too. Between both there must be a lot of other impacts. I have put a
ruler from one to the other and on this
line a lot of images look like impact structures. But I'm not im
Australia. Therefore I can only make a
conjecture.
Other "impact structures":
24°29'34.68"S, 133°13'30.44"E
Now to New Hamshire, US. look at:
43° 6'42.49"N, 71°11'24.44"W
43°16'57.90"N, 71°11'6.78"W
42°54'53.69"N, 71°35'36.35"W
I did not know wether they are or wether they are wellknown.
Tell me please your meaning
Sincerely Uwe
-----Ursprüngliche Mitteilung-----
Von: drtanuki <[EMAIL PROTECTED]>
An: [EMAIL PROTECTED]
Verschickt: Fr., 25. Jul. 2008, 2:04
Thema: Re: [meteorite-list] New possible impact structures detected
Hi Uwe,
It appears to be a small circular hill surrounded by vegetation. The
center
is higher than the surrounding area and the water drains off of the
sides of the
hill providing more water to support the vegetation (shrubs or trees).
Use your
mouse and move the cursor over the feature and you can see the
elevations as you
move around the feature. Also tilt it an you can see some indication
that it is
about 1 meter above the surrounding circular base. Dirk
How long have you been looking for impact craters and what start
ed
your
interest? Best of luck!
--- On Fri, 7/25/08, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
From: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
Subject: Re: [meteorite-list] New possible impact structures detected
To: [EMAIL PROTECTED]
Date: Friday, July 25, 2008, 2:39 AM
Hi Dirk, look at 24°27'46.92"S,
133°16'9.01"E.
What do you think is it?
Uwe
-----Ursprüngliche Mitteilung-----
Von: drtanuki <[EMAIL PROTECTED]>
An: Mark Ford <[EMAIL PROTECTED]>; Uwe
<[EMAIL PROTECTED]>;
[email protected]
Verschickt: Do., 24. Jul. 2008, 12:52
Thema: Re: [meteorite-list] New possible impact structures
detected
Hello Mark, Uwe and List,
Thank you both for your posts.
Mark I do not see any evidence for any military activity
to the
South. The
darkened areas around the animal pens are manure and the
buildings are
all
intact.
The circular "target" that Uwe has found is
difficult to determine
just what
it is because of its size and the poor resolution of the
image.
Elevations at
the site do not indicate a circular depression and tilted
images only
reveal
that is is on a hillslope.
Mark is correct that the Antarctica image is just too
poor to tell
anything.
Best Regards, Dirk Ross...Tokyo
--- On Thu, 7/24/08, Mark Ford <[EMAIL PROTECTED]
wrote:
> From: Mark Ford <[EMAIL PROTECTED]>
> Subject: Re: [meteorite-list] New possible impact
structures detected
> To: [EMAIL PROTECTED],
[email protected]
> Date: Thursday, July 24, 2008, 6:17 PM
> Hi Uwe,
>
> Not sure about the Peru one, it looks like a military
> training range or similar! - scan to the south and
there
> are some burned out building it's like a firin
g range
> or similar, so could be a bomb crater?
>
> The Antarctica one is difficult to say, as the
resolution
> is way too low on google to see any detail, could be
> anything ice makes all kind of patterns!
>
> Best,
> Mark
>
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]
On
> Behalf Of [EMAIL PROTECTED]
> Sent: 24 July 2008 00:48
> To: [email protected]
> Subject: [meteorite-list] New possible impact
structures
> detected
>
> Good evening list,
> Using GOOGLE I have found two possible impact
structures,
> which are
> nowhere to be found. Would you please be so kind to
control
> my
> assumption.
> Peru: 17°34'09.00'' S;
> 69°40'53.59'' W
> Antarctica: 80°49'60.00'' S;
> 126°19'60.00'' E
>
> Regards Uwe
>
>
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