EESA06H3 Lecture 9: Lecture 9 - The Future of Planet Earth The Next Supercontinent
Document Summary
Lecture 9 - the future of planet earth: the next supercontinent. Thursday april 5th - quiz (because of good friday) Final exam: based on chapters 1-4, 11, 19, 20 and lectures 10 and 11. Topics: the building of pangea, alpine-himalayan orogeny: indian sub-continent collides with asia after 25 ma destroying the tethys. Ocean: uplift of the himalayas and climate change after 2 ma. "history doesn"t repeat itself: . but it often rhymes" Closure of the tethys ocean as pangea breaks up. The beginning of pangea ii: obduction of indian crust, and asia grows in size (fig. Get volcanoes from subductin: creates new crust, can"t be subducted. India - like a wedge under asian continent (mt. Rate of uplift and rate of erosion is about the same. Where there"s no seismic activity or gaps, the fault is locked (dangerous) Mediterranean sea is a remnant of the teth. Closure of the mediterranean sea and destruction of tethyan crust.
