Brett Smith for redOrbit.com - @ParkstBrett The Triassic extinction took place over 200 million years ago and a new study has found that a major factor in that global die-off was the oceans becoming toxic, according to a new study in the journal Geology. [caption id="attachment_1113364448" align="alignright" width="300" caption="Life of the Triassic met a choking end in a runaway greenhouse climate, heating the seas into warm stagnation. The greenhouse was caused by CO2 released by massive outpourings of basalt from fissure eruptions associated with the opening of the Atlantic Ocean. The resulting boom in marine microbes consumed oxygen and released poisonous hydrogen sulfide into water and air, creating "dead zones" above and below, worldwide.
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