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Science Forum Index » Astro - Amateur Forum » Posibble old Asteroide impact on earth with 1000km...
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| chillax... |
 Posted: Tue May 06, 2008 10:01 pm |
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Open google earth on following coorinates "South Sandwich Islands" and
zoom out to 6000 km:
58° 7'28.20"S
26°13'7.85"W
You can see a big under water crater, and you see an impact path how
the
crater was created, the impact begins on the South pole "SAWB BASE
MARAMBIO" and on
the bottom of South American's "Falkland Islands / Malwinen".
It seems that south pole and south america was 1 continent which were
hit by a asteroide of a diameter of 1000 km and than splitted the
continent!
What do you think how this rock mass was created ? |
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| Chris L Peterson... |
| Posted: Wed May 07, 2008 9:00 am |
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On Wed, 7 May 2008 01:01:20 -0700 (PDT), chillax <ro.do at (no spam) gmx.de> wrote:
Quote: It seems that south pole and south america was 1 continent which were
hit by a asteroide of a diameter of 1000 km and than splitted the
continent!
No, that's not the cause of the structure you see. Between the large
South American Plate, and the large Antarctic Plate, you have the Scotia
Plate. The South Sandwich Islands are a typical volcanic island arc
lying over a subduction zone between the plates.
BTW, a collision with a 1000 km diameter object would result in the
destruction of virtually all life on Earth. Such an event, if it has
ever occurred, would have been billions of years ago, and no obvious
visible evidence would remain. The area around the Scotia Plate is very
active geologically; a smaller impact in that area would become
invisible in just a few million years.
_________________________________________________
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com |
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| jerry warner... |
| Posted: Thu May 08, 2008 12:07 am |
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chillax wrote:
Quote: Open google earth on following coorinates "South Sandwich Islands" and
zoom out to 6000 km:
58° 7'28.20"S
26°13'7.85"W
You can see a big under water crater, and you see an impact path how
the
crater was created, the impact begins on the South pole "SAWB BASE
MARAMBIO" and on
the bottom of South American's "Falkland Islands / Malwinen".
It seems that south pole and south america was 1 continent which were
hit by a asteroide of a diameter of 1000 km and than splitted the
continent!
What do you think how this rock mass was created ?
By a massive outgrowth of asparagus! |
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