Researchers peering into Earth’s interior found two continent-sized structures that upend our picture of the mantle. What could their existence mean for us back on Earth’s surface?
Earth’s interior
Posted inAGU News
Collaboration Reveals What’s Beneath the Surface
How do scientists look underground? Answering questions about Earth’s interior requires an attack from many angles.
Posted inResearch Spotlights
Regional Metamorphism Occurs Before Continents Collide
Evidence from collision zones suggests that the high temperatures that create regional zones of metamorphic minerals occur in wide, hot back arcs prior to continental collision deformation.
Posted inAGU News
Yoshio Fukao Receives 2018 Inge Lehmann Medal
Yoshio Fukao was awarded the 2018 Inge Lehmann Medal at the AGU Fall Meeting Honors Ceremony, held on 12 December 2018 in Washington, D. C. The medal is for “contributions to the understanding of the structure, composition, and dynamics of the Earth’s mantle and core.”
Posted inScience Updates
Taking Magnetotelluric Data out of the Drawer
Magnetic and electric field measurements at Earth’s surface provide information on Earth’s interior and on space weather. An open-source central repository of these data has received a major update.
Posted inAGU News
Deng and Maguire Receive 2018 Study of the Earth’s Deep Interior Award for Graduate Research
Jie Deng and Ross Maguire will receive the 2018 Study of the Earth’s Deep Interior Award for Graduate Research at AGU’s Fall Meeting 2018, to be held 10–14 December in Washington, D. C. This award is given annually for advances that contribute to the understanding of the deep interior of the Earth or other planetary bodies using a broad range of observational, experimental, and/or theoretical approaches.
Posted inScience Updates
Understanding Electrical Signals from Below Earth’s Surface
A new version of a free Web application (SIGMELTS 2.0) helps Earth scientists interpret electrical anomalies in Earth’s crust and mantle and track the sources of earthquakes and volcanic eruptions.
Posted inEditors' Highlights
Carbonate Melting Enhances Mantle CO2 Fluxes in Old Ocean Basins
The amount of CO2 segregated from the mantle by carbonate melting beneath old oceanic crust may equal that emitted along the mid-ocean ridge system, thereby contributing to the global carbon cycle.
Posted inResearch Spotlights
Linking Mantle Plumes to Volcanoes and Hot Spot Tracks
Study bolsters hypothesis that volcanoes on China’s Hainan Island were formed by a hot spot.
Posted inNews
Harry W. Green II (1940–2017)
By keenly probing mantle rheology, interactions of deformations and phase transitions, and microscopic features, he made major contributions to petrology, mineralogy, and earthquake science.