Supercontinent Pangea Gets Climate Rethink

From Discovery… Topic interested me as it has been some time since any rethinking of the Ancient Past stagnated after the Kahoutek Comet hit Earth and resulting global cooling killed off the dinosaurs. The Paleozoic Age is history’s most diverse zoological period other than modern times. Learning more of this ancient past helps us understand the cycle of life and death that wipes out upwards of 92% of Earth species when the cycle occurs. The relative time-frame is every 50 million years o0r so.. The last one? The destruction caused by Kahoutek was roughly 65 million years ago.

To Say the Least, We are Overdue…

clipped from dsc.discovery.com
Supercontinent Pangea Gets Climate Rethink



Unaweep Canyon

Unaweep Canyon


 

July 28, 2008 — Once thought temperate, the climate on Earth 300 million years ago may have gotten far colder than scientists ever suspected.

Scientists tend to think that life on the great supercontinent Pangea enjoyed weather that was similar to today’s. With an ice sheet dominating the landscape near the south pole, there was certainly an occasional cold snap, but the tropics are believed to have been hot and humid
They’ve found evidence that a massive glacier lived near the equator
further south and closer to sea level than thought
If true,
the climate during the late Paleozoic Era was even chillier than during the last Ice Age
could also have been extremely volatile, swinging in wild cycles
Gerilyn Soreghan of Oklahoma University
discovered strange rocks
floor of the remote Unaweep Canyon, high on the Colorado Pleateau
clipped from dsc.discovery.com
If Unaweep were carved by a huge tongue of ice in the late Paleozoic
it just stayed a lot colder all of the time
  blog it

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Published:
July 28, 2008 / 2:26 pm
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