6533b863fe1ef96bd12c77bc
RESEARCH PRODUCT
Delamination and recycling of Archaean crust caused by gravitational instabilities
Tim E. JohnsonJill A. VantongerenMichael BrownBoris KausBoris Kaussubject
UnderplatingContinental crustArcheanGeochemistryCrustGeodynamicsMantle (geology)12. Responsible consumption13. Climate actionOceanic crustAdakiteGeneral Earth and Planetary Sciences14. Life underwaterGeologydescription
The volume of Archaean crust preserved at Earth’s surface today is low. Thermodynamic calculations and geodynamic modelling show that the thick, primary crust that would have formed on a much hotter Archaean Earth was denser than the underlying mantle, and would have therefore been recycled back into the mantle as drips.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-12-01 | Nature Geoscience |