Exam 10: Ancient Climate and Environment

Nearly a century ago, Swedish botanist Lennart von Post examined vegetation change in familiar trees like birches, oaks, and pines across northern Europe after the Ice Age. For his research, von Post used fossil

The Matuyama-Brunhes magnetic reversal (when the world's magnetic field suddenly reversed) is a key stratigraphic marker. It can be identified both in sea cores and in volcanic strata ashore, where it can be dated precisely with potassium-argon samples. The Matuyama-Brunhes event occurred about

At least three major cold snaps have cooled global temperatures over the past 11,000 years. The last of these was the so-called Little Ice Age, which lasted from about A.D.

Which of these weather conditions are now known to be global events that ripple across the entire tropics as a result of a breakdown in the atmospheric and ocean circulation in the western Pacific?

When the Bosphorus levee was breached around 5500 B.C., what lake eventually became the Black Sea due to salt water flooding?