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Geology, Palaeontology & Archaeology / Re: Previous Global Warming evidence?
« on: 05/07/2012 17:32:57 »
There have been a couple uplifts on the East coast "recently". For one, taking into account the current rate of erosion in the Appalachians you would find going back in time that when they were new they would have been impossibly high. Something like twice the height of the Himalayas. That has had researchers to believe that there was a second uplift of those mountains some 20 million years ago. Also you have the Uwharrie mountains. There are studies that claim they were uplifted only 5 million years ago.
But then, the Uwharries make absolutely no sense anyway. There is a sign on the top of Morrow mountain that now says the rhyolite there never erupted to the surface. That seems silly on the face of it since ryholite forms from quick cooling in the air. Plus there is volcanic breccia found there and how in the world do you get breccia without an eruption to the surface?! Also, the rocks here are tuff and argilite that has tiny grains of pumice in them. There HAD to be an erupting volcano somewhere in NC at some point to form these rocks. And since no one has found where the volcano was there is no reason to think it was not Morrow mountain. Logic insists that there has to be a volcanic pipe somewhere in NC. There should be a large feature in the landscape since basalt erodes much more slowly than the rocks of the Carolina slate belt. But it is not there. The ONLY place where it is possible there was a volcano is the Uwharries. Yet they changed the sign to say there never was one. The tuff and pumice got here somehow. Where else could it have come from? There is also a kimberlite pipe somewhere in NC because diamonds have been found here. But since the state is covered in vegetation there is little chance of finding something that small in such a large area.
But then, the Uwharries make absolutely no sense anyway. There is a sign on the top of Morrow mountain that now says the rhyolite there never erupted to the surface. That seems silly on the face of it since ryholite forms from quick cooling in the air. Plus there is volcanic breccia found there and how in the world do you get breccia without an eruption to the surface?! Also, the rocks here are tuff and argilite that has tiny grains of pumice in them. There HAD to be an erupting volcano somewhere in NC at some point to form these rocks. And since no one has found where the volcano was there is no reason to think it was not Morrow mountain. Logic insists that there has to be a volcanic pipe somewhere in NC. There should be a large feature in the landscape since basalt erodes much more slowly than the rocks of the Carolina slate belt. But it is not there. The ONLY place where it is possible there was a volcano is the Uwharries. Yet they changed the sign to say there never was one. The tuff and pumice got here somehow. Where else could it have come from? There is also a kimberlite pipe somewhere in NC because diamonds have been found here. But since the state is covered in vegetation there is little chance of finding something that small in such a large area.