Earth

New theory on how Earth’s crust was created

Published: 5May2017

More than 90% of Earth’s continental crust is made up of silica-rich minerals, such as feldspar and quartz. But where did this silica-enriched material come from? And could it provide a clue in the...

Isotopic memory of atmospheric persistence

Published: 14Jan2015

Chemical analysis of some of the world’s oldest rocks, by an international team led by McGill University researchers, has provided the earliest record yet of Earth's atmosphere. The results show...