Seismic reflection images combined with petrological data provide new constraints on the nature of the basement in the enigmatic Australia-Antarctic oceanic-continent transition zone.
geology
Posted inNews
J. Casey Moore (1945–2020)
This polymath Earth scientist pioneered multidisciplinary studies of subduction zones on land and at sea.
Posted inEditors' Vox
Curiosity Solves the Mystery of Gale Crater’s Hematite Ridge
A new special issue of JGR: Planets details the water-rich history of a distinctive geomorphic feature on Mars dubbed Vera Rubin ridge, as investigated by the Curiosity rover.
Posted inFeatures
The Delicacy of Arches
Living in Geologic Time: How long will Utah’s arches grace the red rock desert?
Posted inNews
Chicxulub Impact Crater Hosted a Long-Lived Hydrothermal System
Chemical and mineralogical evidence of fluid flow—potentially conducive to microscopic life—was revealed in rock cores extracted from the crater’s “peak ring.”
Posted inFeatures
Reflecting on a Half Century of Mineral and Rock Physics at AGU
Research fields focused on the physical properties of Earth materials emerged in the 20th century and have been making major contributions within geoscience ever since.
Posted inNews
Geology and Chemistry Drive Animal Migration in the Serengeti
Fieldwork in Tanzania suggests that soil chemistry—influenced by local volcanism and tectonic activity—might help dictate the record-setting migration of over a million wildebeests.
Posted inNews
Getting to the Bottom of Slow-Motion Earthquakes
For close to 20 years, slow-motion earthquakes have been an enigma. Core samples provide new clues to their origins.
Posted inNews
GeoGirls: Confidence Erupts from a Camp at a Volcano
Summer camp at Mount Saint Helens empowers girls with science, confidence, and fun.
Posted inResearch Spotlights
Chinese Swamp Core Reveals 47,000 Years of Monsoon History
Magnetic analysis of mineral composition supports the importance of tropical climate processes in shaping long-term monsoon patterns.