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Politics : Sioux Nation
DJT 10.95-5.3%Dec 1 3:59 PM EST
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To: coug who wrote (6602)2/5/2005 1:33:07 PM
From: cosmicforce  Read Replies (3) of 361346
 
Hi coug,

I'm also in the Peak Oil camp. I recognize your point that Australia may have been wetter in the past and there my have been more organics in deltaic deposits than we'd be led to believe by that one piece of data alone. However, don't you think that the craton of Australia just doesn't have the right conveyor-belt mechanisms that would be necessary to produce oil and gas in quantity? This is similar to why Canada has limited oil production capacity (there are the "sands" and "shales" but not many pumpable reservoirs. )

When I took sedimentology I was taught that part of the mechanism that produced gas and oil was an active depression process off shore and mountain building on shore. For the U.S. this was the tectonic deformations in SoCal and in Texas and the Gulf, it was the falling away of the floor of the Gulf relative to Wachita event (I don't know if exact the mechanism for that was ever discovered for the bottom of the Gulf to be settling, but it produces some of the deepest wells in the world if memory serves me). I also seem to remember that the mechanism in Texas was quite different because the reservoir rock was not where the oil originally formed but the location to where it migrated. It's been quite a while since I studied any of this so my memory might be faulty.
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