ANTH 1105 Chapter Notes - Chapter 7: Woolly Rhinoceros, Diminution, Sedentism
5 Mar 2017
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Document Summary
Last cold episode of ice age ended in 13 700 bc, global warming ensued followed by an. Holocene divided into two stages holocene is the current phase that started when the abrupt cold snap glaciers began to retreat o bolling-allerod interstadial (12 700 to 10 950 bc) This 2000 year period saw dramatic global warming; ice retreats, sea level rises, high temperatures o younger dryas interval (10 950 to 9650 bc) Dramatic fall in temperatures, back to glacial conditions more tolerable of the changing conditions. Atmosphere was richer in carbon dioxide during these phases so plants plants were. Forests emerge in northern hemisphere along with emergence of forest animals (deer) o mammoths, woolly rhino, extinct. Rain patterns now bring lakes to the desert. H-g populations flourish in the savanna around 6000 bc. In asia to arid (dry) for vegetation to grow until 9000 bc. Why had these changes not occurred earlier when greater climate changes were occurring? o population density.
