Cause for Permian Extinction Found

Another of those geologic mysteries bites the dust. During the time of the eruptions, sedimentary deposits in the area that would eventually become West Texas and New Mexico were laid down. These would eventually be transformed into one of the most productive set of oil fields in the nation.

Siberian volcanic eruptions caused extinction 250 million years ago, new evidence shows The Great Permian Extinction, which occurred approximately 250 million years ago, was caused by massive volcanic eruptions that led to significant environmental changes, new evidence shows. www.sciencedaily.com