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subduction

The hyperacidic lake inside the crater of Poás volcano in Costa Rica
Posted inScience Updates

Microbial Influences on Subduction Zone Carbon Cycling

by D. Giovannelli, P. H. Barry, J. M. de Moor, K. G. Lloyd and M. O. Schrenk 3 March 202024 October 2022

An innovative collaboration is investigating how geobiological processes alter fluxes of carbon and other materials between the deep Earth and the surface.

Satellite image of the Strait of Juan de Fuca
Posted inNews

Fluid Pressure Changes Grease Cascadia’s Slow Aseismic Earthquakes

Mary Caperton Morton, Science Writer by Mary Caperton Morton 18 February 202019 August 2022

Twenty-five years’ worth of data allows scientists to suss out subtle signals deep in subduction zones.

Ethan Baxter examining garnet samples on an island cliff in Sifnos, Greece
Posted inNews

Using Garnets to Explore Arc Magma Oxidation

Rachel Crowell, Science Writer by Rachel Crowell 26 November 20195 October 2022

Samples collected from Greece help researchers piece together a scientific puzzle.

A world map of mid-ocean ridges
Posted inNews

Tinkering with Tectonics

Lucas Joel by L. Joel 6 September 20192 August 2022

A new view of plate tectonics is emerging.

The magma system underneath Lipari is connected to a fault system formed by tectonic activity rather than to volcanoes.
Posted inScience Updates

Seismic Sensors Probe Lipari’s Underground Plumbing

by F. Di Luccio, P. Persaud, L. Cucci, A. Esposito, G. Ventura and R. W. Clayton 15 July 201911 May 2022

An international team of scientists installed a novel, dense network of 48 seismic sensors on the island of Lipari to investigate the active magma system underground.

Geologist points at a rock feature in a cliff.
Posted inScience Updates

Addressing Cascadia Subduction Zone Great Earthquake Recurrence

by L. Staisch, M. Walton and Rob Witter 2 July 201918 January 2022

USGS Powell Center Cascadia Earthquake Hazards Working Group; Fort Collins, Colorado, 25–29 March 2019

A map showing vertical motions in southwest Japan 7 years after the 1946 Nankai earthquake
Posted inResearch Spotlights

Déjà Vu: Understanding Subduction Zones’ Cycle of Seismicity

by Terri Cook 3 June 201918 January 2022

A unique geodetic data set from Japan’s Nankai subduction zone offers an unparalleled opportunity to study surface deformation spanning almost an entire seismic cycle.

The Sun peeks over a ridge near the top of Mount Kinabalu in northern Borneo.
Posted inScience Updates

Deciphering the Fate of Plunging Tectonic Plates in Borneo

by S. Pilia, N. Rawlinson, A. Gilligan and F. Tongkul 28 May 201925 August 2022

What happens when subduction stops? A team of scientists installed a dense seismic network in Borneo to investigate causes and consequences of subduction termination.

Beartooth Uplift in Montana
Posted inScience Updates

Linking Observations and Modeling of Flat-Slab Subduction

by J. E. Saylor, E. Finzel and M. Jadamec 26 April 201918 January 2022

The Center for Tectonics and Tomography: Workshop on Flat Slab Subduction; Houston, Texas, 18–20 January 2019

The Yaeyama Islands in Okinawa, Japan
Posted inResearch Spotlights

Unraveling the Origin of Slow Earthquakes

by Terri Cook 22 January 20195 October 2022

Different nucleation styles detected in five slow-slip events in the same area of Japan’s Ryukyu subduction zone suggest the physical properties along this tectonic plate interface change over time.

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