april 10 lecture april 10, 2012 - california institute …bi1/bi1__micro-_to_macro-biology...0.6 0.5...

Post on 12-Jul-2020

3 Views

Category:

Documents

0 Downloads

Preview:

Click to see full reader

TRANSCRIPT

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

0.5 0.4 0.3 0.2 0.1 0.0 0.6

Paleozoic Mesozoic Cenozoic

PHANEROZOIC

Drop in sea level due to plate tectonics ~ 50% extinction of animals & plants

Prevalent theories – causes of Phanerozoic extinctions

Drop in sea level due to glaciation ~ 50% extinction

Volcanic activity, formation of the supercontinent 70 – 90% extinction

Central Atlantic magmatic activity, global warming,

atmospheric CO2 extinction Asteroid-induced,

supercontinent breakup 70-90% extinction

Anthropogenic

April 10 Lecture April 10, 2012

April 10 Lecture April 10, 2012

top related