End-Permian Extinction Due to Contact Metamorphism?

David Middleton Here’s a novel take on the Siberian Traps and the End-Permian extinction: Geology Massive underground magma pulse caused the world’s largest mass-extinction The end-Permian wiped out almost all marine species Geologists have suggested that Earth’s most severe mass-extinction was caused by a huge pulse of magma which released deadly levels of greenhouse gases…

“New study challenges prevailing theory about how deep-sea vents are colonized”… And hydrothermal oil!

Guest post by David Middleton   July 24, 2017 New study challenges prevailing theory about how deep-sea vents are colonized An article just published in the Proceedings of the Royal Society B describes two remarkably different hydrothermal vent fields discovered in the southern Gulf of California. Despite being relatively close together, these vents host very different animal…

Claim: Global Warming will Impede Volcanic Cooling

Guest essay by Eric Worrall A study published in the Journal of Geophysical Research claims that global warming will impede the ability of volcanoes to push sulphur compounds into the stratosphere, which will in turn reduce the cooling effect of volcanic eruptions. Climate change may prevent volcanoes from cooling the planet … When an eruption…