Geodynamics: Hot mantle rising
Nature Geoscience 10, 400 (2017). doi:10.1038/ngeo2956
Author: Oliver Shorttle
The long-term cooling of Earth’s mantle is recorded in the declining temperature and volume of its volcanic outpourings over time. However, analyses of 89-million-year-old lavas from Costa Rica suggest that extremely hot mantle still lurks below.