New Impact Crater Discovered in Egypt

sydneystargazer (Roy) · #1 31-07-2010, 09:57 AM

I noticed a few days ago that a new impact crater had been discovered in Egypt when someone had found it using Google Earth.

So I managed to find the crater after some Google Earthing , not easy, and decided to enhance the pictures with some image prcoessing.

I was amazed to come up with this result which is not evident in the Google Earth image and appears to show impact marks as well as the crater.

What are your thoughts? I also produced a picture which I believe shows the direction the meteorite came from.

Roy

http://sydneystargazers.com/
http://sydneyasteroidwatch.wordpress.com/

http://sydneyasteroidwatch.files.wor...-crater-21.jpg

renormalised (Carl) · #2 31-07-2010, 10:59 AM

Good bit of work there

Actually, you've missed some of the ejecta blanket off to the SW...there's more there. There's also some more to the NW but it's been heavily eroded.

My only concern about it having come in from the SW is that if it had come in at a relatively shallow angle, you would have a more elongated crater off to the NE and the majority of the ejecta blanket would show a similar pattern. It still may have come in from that direction but probably at a relatively high angle of descent...above 60 degrees at least, to produce such a round crater. Those really dark spots, I'd like to get a look at those. I wouldn't mind betting some are craterlets from either rock thrown out of the impact site or bits that may have come down with the main bolide....if it's not just ejecta.

Any more craters??

Jen · #3 31-07-2010, 12:35 PM

nice work there Roy. Interesting web site too i like it

AstralTraveller (David) · #4 31-07-2010, 01:55 PM

What is the location of the crater? I want to look for myself.

sydneystargazer (Roy) · #5 31-07-2010, 02:23 PM

Quote:

Originally Posted by Jen

nice work there Roy. Interesting web site too i like it

Thanks Jen..........

sydneystargazer (Roy) · #6 31-07-2010, 02:24 PM

Quote:

Originally Posted by AstralTraveller

What is the location of the crater? I want to look for myself.

Put this in the search box
22.0183, 26.0877

sydneystargazer (Roy) · #7 31-07-2010, 02:27 PM

Quote:

Originally Posted by renormalised

Good bit of work there

Actually, you've missed some of the ejecta blanket off to the SW...there's more there. There's also some more to the NW but it's been heavily eroded.

My only concern about it having come in from the SW is that if it had come in at a relatively shallow angle, you would have a more elongated crater off to the NE and the majority of the ejecta blanket would show a similar pattern. It still may have come in from that direction but probably at a relatively high angle of descent...above 60 degrees at least, to produce such a round crater. Those really dark spots, I'd like to get a look at those. I wouldn't mind betting some are craterlets from either rock thrown out of the impact site or bits that may have come down with the main bolide....if it's not just ejecta.

Any more craters??

There may be other craters like this, but I think this one is unique in that it is well preserves. I checked another crater in West Australia which is about 3000 years old but there were no dark patches around it so the area probably was eroded over time.

renormalised (Carl) · #8 31-07-2010, 02:37 PM

Quote:

Originally Posted by sydneystargazer

There may be other craters like this, but I think this one is unique in that it is well preserves. I checked another crater in West Australia which is about 3000 years old but there were no dark patches around it so the area probably was eroded over time.

Which crater was this...Wolf Creek??

There's undoubtedly other craters there, quite a few are buried under the Sahara.

sydneystargazer (Roy) · #9 31-07-2010, 02:49 PM

Quote:

Originally Posted by renormalised

Which crater was this...Wolf Creek??

There's undoubtedly other craters there, quite a few are buried under the Sahara.

The one at Wolfe Creek is 300,000 years old. The one I looked at was Dalgaranga at 27°38′S 117°17′E which is only 3000 years old.

renormalised (Carl) · #10 31-07-2010, 02:58 PM

Quote:

Originally Posted by sydneystargazer

The one at Wolfe Creek is 300,000 years old. The one I looked at was Dalgaranga at 27°38′S 117°17′E which is only 3000 years old.

Ah...forgot about the age. Been to Wolf Creek but not Dalgaranga, I'll have to have a look

Zaps · #11 31-07-2010, 03:31 PM

The Meteoritical Bulletin Database.

Here's an old trick: Open an image of a crater with PS (or equivalent) then adjust the Threshold.

renormalised (Carl) · #12 31-07-2010, 03:43 PM

Quote:

Originally Posted by Zaps

The Meteoritical Bulletin Database.

Here's an old trick: Open an image of a crater with PS (or equivalent) then adjust the Threshold.

Interesting

Nice piccies of the bits n pieces from the crater.

sydneystargazer (Roy) · #13 31-07-2010, 03:52 PM

I found a similar crater which I have posted on my site. Not as good but the Barringer Crater seems to show something interesting.

Is it my imagination or is there a much bigger crater surrounding the Barringer Crater in Arizona?

http://sydneystargazers.com/
http://sydneyasteroidwatch.wordpress.com/

Roy

http://sydneyasteroidwatch.files.wor...er-crater2.jpg

renormalised (Carl) · #14 31-07-2010, 04:18 PM

No....that is an effect of your eyes looking at a flat photo with the relief around it. It's most likely drainage, which is what it appears to be. It can be hard, sometimes to tell what's what unless you have a stereographic pair to look at. Looked at that many aerial photos, the old eyes can tell what's what, but it can still be disconcerting.

Just had a look at a larger pic...it's drainage off the edge of the crater, running around the bottom of some hummocky ground. Most of the ground around the crater is relatively flat, actually.

Spanrz (Brett) · #15 31-07-2010, 05:50 PM

Nice pick up, seems some weird craters in that area.
Ahhh, can someone give me the Google "street view" version of the crater?

Interesting area, like this one : 22° 5'43.76"N 23°47'45.77"E
2 hits, that show some sort of lines of trajectory in the NNW - SSE type of direction.

Something hit big in that area. Think NASA should do a big huge sweep with a "metal detector".

sydneystargazer (Roy) · #16 31-07-2010, 10:14 PM

Quote:

Originally Posted by Spanrz

Nice pick up, seems some weird craters in that area.
Ahhh, can someone give me the Google "street view" version of the crater?

Interesting area, like this one : 22° 5'43.76"N 23°47'45.77"E
2 hits, that show some sort of lines of trajectory in the NNW - SSE type of direction.

Something hit big in that area. Think NASA should do a big huge sweep with a "metal detector".

I processed this image of one of the two Arkenu craters. Pretty impressive looking impact crater.

Roy

http://sydneystargazers.com/
http://sydneyasteroidwatch.wordpress.com/

http://sydneyasteroidwatch.files.wor...enu-crater.jpg