RE: Global dimming and warming.
August 7, 2012 at 9:00 am
(This post was last modified: August 7, 2012 at 9:09 am by The Grand Nudger.)
If that one and all of it's siblings were all going at once (and constantly)...we'd begin to approach the level of activity during P-Tr.
An interesting aside Kichi, re things like major currents and how they affect the environment (and the continued existence of any given species). The formation of Pangea would have cut off, disrupted, and altogether annihilated any currents like the conveyors we see today which were intersected by landmasses. For this reason it has been theorized that the formation of the super-continent itself (no other factors required- though it isn't likely that the super-continent could have formed without any other effects, and obviously it didn't -but just as an exercise in classification) would have kicked off and maintained large scale marine extinction events that lasted for millions of years, ultimately adding to the death toll in the final culmination of that process as it appears to us, P-Tr.
An interesting aside Kichi, re things like major currents and how they affect the environment (and the continued existence of any given species). The formation of Pangea would have cut off, disrupted, and altogether annihilated any currents like the conveyors we see today which were intersected by landmasses. For this reason it has been theorized that the formation of the super-continent itself (no other factors required- though it isn't likely that the super-continent could have formed without any other effects, and obviously it didn't -but just as an exercise in classification) would have kicked off and maintained large scale marine extinction events that lasted for millions of years, ultimately adding to the death toll in the final culmination of that process as it appears to us, P-Tr.
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