Pasadena Now: Caltech Scientists Ask:...

Pasadena Now: Caltech Scientists Ask: What Triggers a Mass Extinction?

There are 1 comment on the www.pasadenanow.com story from Apr 10, 2012, titled Pasadena Now: Caltech Scientists Ask: What Triggers a Mass Extinction?. In it, www.pasadenanow.com reports that:

The second-largest mass extinction in Earth's history coincided with a short but intense ice age during which enormous glaciers grew and sea levels dropped.

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Staten-John

Brooklyn, NY

#1 Apr 10, 2012
The Gravity Theory of Mass Extinction ( www.dinoextinct.com ) is able to provide a different explanation for this, and most other mass extinctions.
Briefly, the latitudinal movement of supercontinents (Laurasia and Gondwana in this case) alters surface gravity, and by extension, sea level.
When Gondwana moved toward the south pole, it raised sea level and lowered surface gravitation on both land masses during the Ordovician. During the Hirnantian (last stage of Ordovician) Laurasia moved toward the equator lowering sea level and increasing surface gravitation causing the extinctions.

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