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Has a Tunguska Crater Been Found?

 
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Reiner
Korisnik
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Joined: 25 Aug 2005
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Location: Spain-Germany-Croatia triangle
PostPosted: Wed Jun 27, 2007 11:42    Post subject: Has a Tunguska Crater Been Found? Reply with quote

"Scientists have identified a possible crater left by the biggest space impact in modern times - the Tunguska event."

More:
http://news.bbc.co.uk/2/hi/science/nature/6239334.stm
http://www.skyandtelescope.com/news/8134097.html
http://www.space.com/scienceastronomy/070626_st_tunguska_crater.html

And an article in "Spiegel Online" (in German, but has more diagrams etc.):
http://www.spiegel.de/wissenschaft/natur/0,1518,490518,00.html

Reiner
Checko.jpg

3D simulation showing Lake Cheko with a water level 40m below the one of today.

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korado
Super Korisnik
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Joined: 20 Jan 2005
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Location: Visnjan
PostPosted: Wed Jun 27, 2007 20:31    Post subject: Reply with quote

If the Cheko lake is an impact crater I am a hippopotamus .... more then 100 years old trees on the lake shore ..... somewhere I have the pictures of them .
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Reiner
Korisnik
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Location: Spain-Germany-Croatia triangle
PostPosted: Wed Jun 27, 2007 21:24    Post subject: Reply with quote

Hello Hippo Laughing

korado wrote:
If the Cheko lake is an impact crater I am a hippopotamus .... more then 100 years old trees on the lake shore ..... somewhere I have the pictures of them .
.


At least the German article linked above mentions this too and says that the team is explaining this by the "soft" impact which absorbed much of the energy and reduced the damage due to the air blast.

To quote the original paper in Terra Nova:
"This scenario, i.e. the formation of a crater due to the ‘soft’ impact of a small body, subsequently enlarged by the expulsion of H2O and gas from the ground, would explain the unusual morphological/stratigraphical features observed in the lake. It would also explain the limited air-blast effects in the lake surroundings"...

Well, if traditional methods failed to identify a crater or lead to a fragment of the intruder, maybe the Italians' scenario should be investigated further.

At least this one seems for sure not just a drinking hole for sheep and cows Laughing

First thought I had: Damn, why was there no Google Earth prior to 1908!!!

Ciao,
Reiner
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dino
Novi korisnik
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PostPosted: Tue Aug 21, 2007 12:07    Post subject: Reply with quote

but why then when you write on wikipedia tunguska event it provides images of fallen tree`s taken in 1927


that means that they would be only 80 and less years old because wen this image was taken they are still on the ground
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Last edited by dino on Wed Mar 09, 2011 6:54; edited 1 time in total
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Reiner
Korisnik
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PostPosted: Wed Aug 22, 2007 16:41    Post subject: Reply with quote

Hello Dino,

dino wrote:
but why then when you write on wikipedia tunguska event it provides images of fallen tree`s taken in 1927


that means that they would be only 80 and less years old because wen this image was taken they are still on the ground
Question Question


Which "image"? The above one im my post? Notice that it is an animation, not an image! It is an animation showing the suspected impact crater with much less water than it actually has today, so one can better see its shape. Should be clear from the subtitle.

Reiner
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dino
Novi korisnik
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PostPosted: Thu Aug 23, 2007 15:25    Post subject: Reply with quote

Quote:
Which "image"? The above one im my post?

write on wikipedia tunguska krater


korado says he has pictures of 100 years old trees. Expedition was in 1927 then they took pictures and trees where stil ruined that means that they would be only 80 and less years old. How is then possible for korado to have pictures of trees 100 years old
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