EESA06H3 Lecture 9: Planet Earth-Lecture 9.docx
18 Apr 2012
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Final exam: focus on plate tectonics and last two lectures (10 and. Supercontinent cycle: can use to predict future. 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. Alps, himalayas have long kms belt which record closure of an ocean called the teths (teths ocean). Mediterranean is a reminant, a dying ocean createdqueezing of teths ocean between india and. Ice thirty thousand years ago and ice age 100,000 years ago. Long ice ages (100,000) and short interglacials. Present interglacial should"ve stopped a long time ago but is extended by our activities. Ice ages and interglacials result of uplift of himalayas. Changes in climate in africa near the rift are controlled by the uplift of himalayas and global climatic change that it made (species origination). Peak of pangea: teths sea (around it with a big continent)
