News tagged with isotopic ratio

New detector sniffs out origins of methane

Methane is a potent greenhouse gas, second only to carbon dioxide in its capacity to trap heat in Earth's atmosphere for a long time. The gas can originate from lakes and swamps, natural-gas pipelines, deep-sea vents, and ...

dateMar 05, 2015 in Earth Sciences
shares44 comments 0

What really happened prior to 'Snowball Earth'?

In a study published in the journal Geology, scientists at the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science suggest that the large changes in the carbon isotopic composition of carbonates which ...

dateJan 27, 2012 in Earth Sciences
shares0 comments 18

Deep recycling in the Earth faster than thought

The recycling of the Earth's crust in volcanoes happens much faster than scientists have previously assumed. Rock of the oceanic crust, which sinks deep into the earth due to the movement of tectonic plates, reemerges through ...

dateAug 10, 2011 in Earth Sciences
shares0 comments 18