Talk:Wilkes Land crater

Untitled
Removed this external link: Completely unrelated to the article. Richard Branson 06:15, 5 June 2006 (UTC)
 * Theage.com.au: "Australia's meteoric rise" 4 June 2006
 * To me, it looks so similar to the other articles that it offers nothing new, and decided not to revert. (It mentions Wilkes Land several times.) --Dhartung | Talk 07:41, 5 June 2006 (UTC)

are they sure it's old enough to have cause the PT extintion? that thing is big, but big anough to kill 90% of all life on earth?
 * —Preceding unsigned comment added by 204.187.76.9 (talk • contribs)


 * The hype about it causing the PT extinction and the breakup of Gondwana are simply pre-mature speculations. The cited age range of between 500 and 100 mya is far to broad for any direct implications. Vsmith 14:26, 5 June 2006 (UTC)


 * Whole crater is nothing but hype. The circular mass concentration is the only proof that they have, and for goodness sake, impact craters on Earth are associated with negative gravity anomalies!--JyriL talk 19:37, 15 August 2006 (UTC)


 * Considering it as an impact, I'd like to think of the ripples of energy waves across the globe as the tectonic plates were literally vibrated into a new volcanic era. So it may have just been a catalyst at that point, leading to a new toxic suffocation of current life and eventually a new ice age without the living warmth. Not much can survive in either event. So basically, with an impact like that, IF of course it was an impact, anything was possible and may have taken thousands or millions of years to complete. Heck, the Atlantic trench might be the crack in this big egg from which man finally emerged. LOL

TJ 03:38, 6 June 2006 (UTC)

Is there anything to link this thing to the Permian-Triassic extinction event? If not, is it really our place at Wikipedia to speculate here (and on the front page, for God's sake) that it might've caused it? (I actually suspect it might have -- from the map, it looks to be roughly antipodal to the Siberian Traps (same latitude south as the vent in Norilsk is north, in fact, but only about 40 degrees further east rather than 180) known to be linked to that event, and impact waves could have been focused there. But where's more evidence?)--69.196.212.30 11:31, 9 June 2006 (UTC)

Phrasing
"Based on the presence of the mass concentration, the authors believe the structure must be less than 500 million years old."

Which authors?

Would it not be better to phrase this as "Based on the presence of the mass concentration, it is believed that the structure must be less than 500 million years old." with the relevant citation.

Without a citation, this is supposition. --203.13.128.102 04:37, 22 August 2006 (UTC)

Reference added 3 Jan 07
Just added a reference to the 5 line non-refereed conference poster abstract that starting the media snowball going. It pre-dates the hasty media release, previously linked. To my knowledge nothing has appeared (yet) in the refereed scientific literature. Changed some wording to clarify some things and emphasize the speculative nature of the interpretations.PeterWH 14:12, 3 January 2007 (UTC)

Two Wilkes Land crater hypotheses
I've done some major edits to insert a fully referenced account of the earlier Wilkes Land crater hypothesis. I separated the two under headings Wilkes Land anomaly and Wilkes Land mascon because I think these terms are most faithful to the original sources. The first is really of historical interest only, but at least it has refereed journal sources, unlike the latter. PeterWH 05:55, 4 January 2007 (UTC)

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