CAS ES 351 Chapter Notes - Chapter 6: Ocean Current, Subtropics, Aea
24 Mar 2019
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The flooding separated the land into even smaller sections. A lot of marine limestones deposited by the high seas during this time are common around the world. This is an important interval because there is no record of ice being anywhere, even at the poles (was a warm greenhouse world) In the northern hemisphere, there is evidence for unusual warmth from vegetation and warm-adapted animals like dinosaurs, turtles, and crocodiles, all of which existed north of the arctic circle which has very cold climates today. Temps near the equator were like a few degrees higher than today, but those at the poles were as much as 40 degrees warmer than today. The reason for this is likely the absence of the antarctic ice sheet. Researchers who ran this model created a target signal for an independent climate based on observations available then (these contain uncertainty)
