i'm looking for some information on a set of craters, approx 100, looking like the effects of a fragmented impact. they are located in the Tassili n'Ajjer national park in Algeria.
there is a high-res image at this url (craters can be seen at the two dark patches in the centre and centre left, showing up as pink presumably meaning high density):
and also the coords from google maps place the western formation at 25.268294,6.095249 or thereabouts.
things i've noticed:
they could be sinkholes. there do seem to be an awful lot of them though. what's at work under the surface?
the craters at the western formation also trail off towards the southeast and increase in size, in accordance with what you might expect from a series of fragments, impacting from a particular direction.
all in all it's frustrating to see an example so clear of some interesting geology, yet seemingly with no research available to explain its formation.
anybody know if there's a paper or article on this? or should i begin to write my own!
GeologyRocks
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Tassili craters - no information anywhere!
Submitted by k0no on Sun, 12/30/2012 - 16:23.hi guys.
i'm looking for some information on a set of craters, approx 100, looking like the effects of a fragmented impact. they are located in the Tassili n'Ajjer national park in Algeria.
there is a high-res image at this url (craters can be seen at the two dark patches in the centre and centre left, showing up as pink presumably meaning high density):
http://upload.wikimedia.org/wikipedia/commons/0/03/Tassili_n%E2%80%99Ajjer_National_Park_NASA_Landsa...
and also the coords from google maps place the western formation at 25.268294,6.095249 or thereabouts.
things i've noticed:
they could be sinkholes. there do seem to be an awful lot of them though. what's at work under the surface?
the craters at the western formation also trail off towards the southeast and increase in size, in accordance with what you might expect from a series of fragments, impacting from a particular direction.
all in all it's frustrating to see an example so clear of some interesting geology, yet seemingly with no research available to explain its formation.
anybody know if there's a paper or article on this? or should i begin to write my own!
Ben