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Permian Extinction - Coggle Diagram
Permian Extinction
volcanic activity (Siberian Traps)
ash spread through atmosphere
sulfur dioxide blocked sunlight
temporary cooling happened
carbon dioxide released
global warming increased
temperature rose about 5°C
oceans became warmer
oxygen levels dropped
sulfur bacteria spread
marine food chains collapsed
mass extinction happened
2 more items...
sedimentary layers
show scientists what happened over time
red rocks show dry climates
greenish layers show wetter climates
methane released from ocean floor
made Earth even hotter
climate became unstable
ecosystems collapsed