Sentences with phrase «during massive volcanic eruptions»

All the CO2 in the atmosphere has been created by outgassing from the Earth's core during massive volcanic eruptions.

The legendary Ölfus Spring was forged during a massive volcanic eruption over 5,000 years ago.

Not exact matches

Early humans survived a massive volcanic eruption 74,000 years ago as well as flourished during the resulting climate change, finds a new study.

Even during the PETM, it took extended volcanic eruptions on a massive scale that were extensive but not of the kind to eject significant stratospheric sulfates so as to cause cooling.

The massive volumes of volcanic debris deposited in the Spirit Lake and the Toutle River system during the 1980 eruption of Mount St. Helens in southwest Washington State drastically changed the region and left its 50,00... More >>