Table of Contents
Check web page: Updated study questions & HW #1!
PPT Slide
Permian Extinction
Species “Life”
Background Extinction
Proposed Agents of Mass Extinctions
Climate Change (Glaciation)
Marine Regression
Climate Change Evidence
Alvarez Hypothesis
Iridium Profile
Chicxulub Crater
Possible Consequences of “IMPACT”!
Evidence for Alvarez Hypothesis
Evidence for Impact Extinctions
Volcanic Eruptions
Volcanic Eruption Hypothesis
Evidence for Volcanic Eruptions
Plants and Mass Extinctions?
Summary of Mass Extinctions
Extinctions Past and Present
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