* Astronomy

Members Login
Post Info TOPIC: Mantokoski Crater


L

Posts: 131433
Date:
RE: Mantokoski Crater
Permalink  
 


According to Jarmo Moilanen, a representative of the Finnish astronomical association (Ursa), the suspected meteorite crater in the Mantokoski river in Utsjoki in Finnish Lapland could not have been caused by a meteorite.
The impact of a meteorite leaving such a large crater would have been detected.

The head of Ursa´s Utsjoki branch had suspected Friday that a meteorite had caused the crater, estimated to have a diameter of as much as 300 metres.

Read More

__________________


L

Posts: 131433
Date:
Permalink  
 

Though the local estimates for the size of the `explosion` vary from 10 to 300 meters, a recent Finnish newspaper article thinks that it is not a meteor crater...

"A 100 metre impact crater would need the energy of 20 000 tons of TNT: half the yield of the Hiroshima bomb" - Jarmo Moilanen.


http://www.verkkouutiset.fi

__________________


L

Posts: 131433
Date:
Permalink  
 

The Ursa astronomical association has suggested that the explosion may have been due to a large bubble of methane rising to the surface and bursting. A phenomenon that is common in the area.
The holes left by such processes look quite similar to an impact crater.

__________________


L

Posts: 131433
Date:
Permalink  
 

The `crater` seems to actually be a strewn field about 300 metres wide.



__________________


L

Posts: 131433
Date:
Permalink  
 



-- Edited by Blobrana at 22:17, 2006-01-01

__________________


L

Posts: 131433
Date:
Permalink  
 

A large impact crater has been found in the Mantokoski river in Utsjoki, northern Finland, approximately one kilometre from the closest settled area.
It is estimated that the impact occurred before Christmas.
The crater has an estimated diameter of 300 meters. Samples are being sent to the University of Oulu for examination. The possibility of the crater being caused by the remnant of a satellite has not been ruled out.

"For my part I am strongly leaning towards the opinion that it is a meteorite" - Mr Juhani Harjunharja, chair of the Ursa astronomical association.

__________________
Page 1 of 1  sorted by
Quick Reply

Please log in to post quick replies.



Create your own FREE Forum
Report Abuse
Powered by ActiveBoard