A new model of the melting behavior of certain mantle rocks gives researchers a better understanding of the source of oceanic lavas.
Earth's interior
Posted inScience Updates
Making a Better Magnetic Map
A new version of the World Digital Magnetic Anomaly Map, released last summer, gives greater insight into the structure and history of Earth's crust and upper mantle.
Posted inNews
Mineral Flaws Clarify How Diamonds Form
A study of nanoscale, iron- and sulfur-rich impurities in diamonds provides new clues to the chemical processes that produce the superhard crystals and at what depths they occur.
Posted inResearch Spotlights
Evidence of an Extinct Ocean Basin Detected Beneath Greenland
An analysis of a seismic and gravity anomaly discovered in the middle mantle sheds new light on ancient oceans, the mantle's evolution, and ancient magmatism in the Arctic.
Posted inResearch Spotlights
Massive Ancient Tectonic Slab Found Below the Indian Ocean
Scientists discover a surprisingly positioned tectonic plate, buried below the southern Indian Ocean, that spans the entire mantle.
Posted inEditors' Vox
Frontiers in Geosystems: Solving the Puzzles
Putting some publishing action into deep Earth-surface interactions
Posted inResearch Spotlights
Variable Mantle Lies Below Ancient Pieces of Earth's Crust
Underneath old and stable pieces of Earth's crust in North America, the mantle's uppermost portion contains multiple layers that change the velocities of seismic waves.
Posted inResearch Spotlights
Improved Models of Wind Flow over Mountains
A new approach for representing areas of low-lying mountains improves the simulation of atmospheric flow over gentle topography without increasing computational requirements.
Posted inResearch Spotlights
P Wave Amplitude Decay Offers a Glimpse of Earth's Structure
Scientists look at deep earthquake signals to map how seismic waves lose energy in the upper mantle across the United States.
Posted inAGU News
Peter Olson Receives 2015 Inge Lehmann Medal
Peter Olson was awarded the 2015 Inge Lehmann Medal at the American Geophysical Union Fall Meeting Honors Ceremony, held on 16 December 2015 in San Francisco, Calif. The medal is for "outstanding contributions to the understanding of the structure, composition, and dynamics of the Earth's mantle and core."