Browse Journal Highlights

Highlights include enriched and related content of notable journal articles presented on Eos org AGU org AGU On Demand and in AGU journals

The Many Magmatic Modifications to the African Continent

John Geissman, Editor-in-Chief, Tectonics

Editors' Highlight— How the very slow moving African Continent, with a lithosphere of quite varied age elements and thickness, has responded to ongoing asthenospheric modification. The Cenozoic East African rift, Cameroon Volcanic Line and Atlas Mountains all formed on the slow-moving African continent. Ebinger.... more

Demonstration of a regional-scale unconformity in Western Australia

Editor’s Highlight—   This paper presents a synthesis of previously published geological and geophysical data (including recently published geological maps) on the central part of the Yilgarn Craton in Western Australia, augmented by original microstructural data on several key zones. This review demonstrates.... more

Ancient weakening of Earth’s crust explains unusual intraplate earthquakes

Olivia Trani

Blog— New research reveals that mysterious pockets of earthquake activity in the middle of North America all have one thing in common: Earth’s crust in these zones underwent significant deformation hundreds of millions of years ago, creating weak areas that are more susceptible to earthquakes. These.... more

Seafloor Activity Sheds Light on Plate Tectonics

Sarah Witman, Freelance Writer

From Eos.org: Research Spotlights— Scientists in Japan study stress released by oceanic earthquakes in newborn sections of seafloor.  Much like the way humans constantly generate new skin cells, the bottom of the ocean regularly forms fresh layers of seafloor. Volcanic activity causes the seafloor.... more

Measuring Earth’s Elasticity

Emily Underwood, Freelance Writer

From Eos.org: Research Spotlights—  A new study illuminates how crustal rocks break and deform. When an earthquake hits, it sends a wave of energy through Earth’s crust. The wave’s speed depends on the crystalline structure and orientation of the minerals within the layers of rock. It also depends on.... more

The distribution and composition of high-velocity lower crust across the continental U.S.: comparison of seismic and xenolith data and implications for lithospheric dynamics and history

Editors’ Highlight—        This paper presents an analysis of the crustal structure beneath the continental US, combining geochemistry with geophysics. The authors use receiver functions, Vs derived from surface waves, and xenoliths to infer the composition and velocity structure of the lower crust..... more

Unraveling the History of the India-Asia Collision

Terri Cook, Freelance Writer

From Eos.org: Research Spotlights— A study of deformed and metamorphosed rocks exposed in Tibet’s Lopu Range suggests that episodes of crustal shortening and extension during the evolution of the Himalaya are related to subduction processes.  The lofty Himalaya, which stretch nearly 3000 kilometers.... more

Reinterpreting the Age and Origins of Taiwan’s Yuli Belt Terrane

Terri Cook, Freelance Writer

From Eos.org: Research Spotlights— Uranium–lead dating of zircons from Taiwan’s east central metamorphic belt offers robust evidence that this uplifted terrane is some 90 million years younger than previously thought.  The island of Taiwan has been actively uplifted since the collision of a volcanic.... more