Scientists examine a large dike, formed from a sheet of magma that came to Earth’s surface millions of years ago during the Columbia River Basalt eruptions. These dikes fed magma to massive eruptions.

RENO, Nev. — Scientists long have believed that mass extinctions are triggered by sudden global changes in climate. Some of these cataclysmic events, like the one originally assumed to have wiped out ...

A new NASA climate simulation suggests that extremely large volcanic eruptions called “flood basalt eruptions” might significantly warm Earth’s climate and devastate the ozone layer that shields life ...

Schematic scenario for flood basalt eruptions at the Triassic-Jurassic boundary. Magma intruded into shales, coal beds and organic-rich sediments, releasing vast amounts of carbon dioxide and other ...

The Frenchman Coulee basalt columns (up to 75 feet high) are said to have been formed when Ice Age floodwaters flowed down the Grand Coulee and across the Quincy Basin. Lee Walter Recently my grandson ...