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Google Earth Map Showing Meteor Impact Craters |
 Dec 6 2005, 05:52 PM
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 Member  Group: Members Posts: 563 Joined: 29-March 05 Member No.: 221  |
Google maps showing Meteor Impact Craters. Pretty neat stuff.
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Mar 7 2006, 11:07 AM
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#2
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Senior Member Group: Members Posts: 1870 Joined: 20-February 05 Member No.: 174 |
Last I heard that a likely location for the source for the austral-asian strewn field of tektites was entirely buried under the sediments of the Meking river plains in Cambodia. Some source in that very very general area on continental crust seems required, but there's no sign of a source crater anywhere, and that's the largest area of thoroughally sediment-buried crust anywhere around.
High-resolution geophysical prospecting/maping (gravity and magnetics) would find it, but getting permission is......... |
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Mar 7 2006, 01:49 PM
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#3
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Junior Member Group: Members Posts: 45 Joined: 8-August 05 Member No.: 457 |
QUOTE (edstrick @ Mar 7 2006, 03:37 PM)  but there's no sign of a source crater anywhere Hum, Yeah a bit of a mystery there... Australites (and Indochinites which are indistinguishable from each other) have been dated to about 710,000 years using fission track and potassium-argon (K-Ar) dating methods; However the stratigraphic positions indicates an age of 7000 to 20,000 years BP. From their chemical composition, both belong to the same impact event...! The evidence seems to show a least two episodes of australite falls - one relatively recent (24,000 and 16,000 years ago) and at 710,000years. (It could be influenced by sorting by ie Early man) Australites are also unusual in that some show that they were remelted; this may show different trajectories - sending some material into orbit... Darwin glass from South West Tasmania has a combined K-Ar and fission track age of 730,000 +/- 40,000 years. It seems that Darwin crater was the source of both. I would also add that it is possible that the impact crater may be part of two or more events that occurred together. Another associated impact crater could have been formed in the Indonesian region. A larger impact crater that still has to be found... Darwin Crater has a diameter of 1 km  Expand (This is a possible location - can someone confirm?) -42.249599° 145.555629° (i`ve posted another location (42°18.39'S, 145°39.41'E) at googlehacks though) http://www.grisda.org/origins/04076.htm |
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paxdan Google Earth Map Showing Meteor Impact Craters Dec 6 2005, 05:52 PM
blobrana Yeah,
Pretty neat stuff.
Though, for those that p... Dec 6 2005, 08:07 PM Jyril It's badly incomplete. Google Earth in turn ha... Dec 6 2005, 08:28 PM
ElkGroveDan QUOTE (Jyril @ Dec 6 2005, 08:28 PM)It's ... Dec 6 2005, 08:59 PM Jyril Many more. For example, all European, Russian, and... Dec 6 2005, 09:16 PM Pando Perhaps the one best resources is this Google Eart... Dec 7 2005, 06:48 AM Steffen That Google Earth application is really ashtonishi... Jan 9 2006, 07:02 AM lyford QUOTE (Steffen @ Jan 8 2006, 11:02 PM)That Go... Jan 13 2006, 07:30 PM CosmicRocker I don't always keep up with this thread becaus... Feb 23 2006, 05:47 AM paxdan Space.com are reporting a large impact crater ... Mar 6 2006, 12:04 PM volcanopele http://www.googleearthhacks.com/dlfile1435...uika-... Mar 6 2006, 06:47 PM blobrana QUOTE (volcanopele @ Mar 6 2006, 11:17 PM... Mar 6 2006, 07:18 PM volcanopele QUOTE (blobrana @ Mar 6 2006, 12:18 PM) L... Mar 6 2006, 08:28 PM blobrana Hum,
Well i suppose that the relatively recent dat... Mar 6 2006, 10:53 PM Bob Shaw QUOTE (blobrana @ Mar 6 2006, 10:53 PM) H... Mar 7 2006, 10:50 AM edstrick Farouk El-Baz gave a talk at a planetary science m... Mar 7 2006, 08:31 AM blobrana Hum,
i ve just remembered another possibility for ... Mar 17 2006, 01:23 PM blobrana Hum,
just for the record - (i can`t find this ... May 27 2006, 10:51 PM Bob Shaw QUOTE (blobrana @ May 27 2006, 11:51 PM) ... May 27 2006, 11:01 PM DonPMitchell You might remember this photo of a meteor, taken a... May 28 2006, 04:24 PM Bob Shaw QUOTE (DonPMitchell @ May 28 2006, 05:24 ... May 28 2006, 05:27 PM blobrana QUOTE (Bob Shaw @ May 28 2006, 09:57 PM) ... May 28 2006, 06:51 PM DDAVIS [quote name='blobrana' date='May 28 20... Jun 9 2006, 05:44 PM DonPMitchell QUOTE (Bob Shaw @ May 28 2006, 10:27 AM) ... May 28 2006, 07:51 PM helvick I've seen one nighttime fairly large bolide - ... May 28 2006, 08:30 PM Bob Shaw I saw a *major* fireball whilst out one night in t... May 29 2006, 03:37 AM dvandorn Several years ago, I was driving through Wisconsin... May 29 2006, 06:29 AM blobrana Hum,
Northern Norway was hit with an meteorite imp... Jun 9 2006, 03:35 PM Rob Pinnegar Guess all the local universities will be sending p... Jun 9 2006, 04:44 PM Myran QUOTE Jyril wrote: It's badly incomplete. Many... Jun 10 2006, 06:42 AM Sunspot Hmmm that story about the impact in Norway has dis... Jun 10 2006, 09:17 AM ugordan The report is still there, but it's on the pag... Jun 10 2006, 11:39 AM Myran QUOTE Sunspot wrote: Hmmm that story about the imp... Jun 10 2006, 12:01 PM ljk4-1 There is already a thread devoted to the Norwegian... Jun 10 2006, 12:12 PM blobrana A BBC Horizon programme puts forward a very persua... Jul 21 2006, 01:28 PM |
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