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Ancient volcanoes reveal Earth’s recycled crust

Photographs of alkaline magmatic intrusions in Greenland. The region was volcanically and tectonically active around 1.2 billion years ago. Although no longer active, it is of major interest to...

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Unusual fault rupture during Kaikōura quake

Fig. 1 Map of the 2016 Kaikōura earthquake and surrounding area. (A) Transpressional tectonic setting of the northeastern South Island of New Zealand. (B) Map of surface ruptures from the 2016 Mw 7.8...

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Study provides new insight into the origin of Las Cañadas caldera (Tenerife,...

A detail of the southern wall of the Las Cañadas caldera de . It is the best exposed sector of this volcanic structure. (Imagen: Joan Martí) Las Cañadas caldera (Tenerife, Canary Islands) is the result...

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What makes the Earth’s surface move?

Images of the numerical solution at the moment when a supercontinent (left, in purplish grey) begins to break up. In the image on the left, the modelled fictional planet looks much like the Earth: its...

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Telescopes and satellites combine to map entire planet’s ground movement

Earth Curtin University research has revealed how pairing satellite images with an existing global network of radio telescopes can be used to paint a previously unseen whole-of-planet picture of the...

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New geologic modeling method explains collapse of ancient mountains in...

Reconstructed paleo-elevation in southwestern North America at the Late Eocene (36 million years ago). Credit: Bahadori and Holt By using the latest computer numerical modeling technologies, combined...

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The Antarctic: Data about the structure of the icy continent

The deep structure of the continent Antarctica. Credit: Planetary Visions (credit: ESA/Planetary Visions) The Antarctic is one of the parts of earth that we know the least about. Due to the massive ice...

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Study explores the density of the tectonic plates and why they sink in the...

A schematic summary of the effect of the convergence rate. Upper image shows a slow convergence rate allows thermal difussion and a derived reduction of slab’s density (positive buoyancy). Lower image...

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Lithospheric thickening beneath the Betics and Rif mountains pulls down the...

Satellite image of the Gibraltar Arc. Credit: NASA A new study made by researchers at the Institute of Earth Sciences Jaume Almera of the Spanish National Research Council (ICTJA-CSIC) has been able to...

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Hidden past of Earth’s oldest continents unearthed

Credit: University of St Andrews New international research led by the University of St Andrews presents a novel way to understand the structure and formation of our oldest continents. The research,...

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New pieces of evidence found in the Alborán Sea possibly related to the...

Isobath map of the eastern Alborán basin with the volcanic edifice location. Orange lines show the main flood paths. (Image: García-Castellanos et al, 2020, Earth-Sciences Reviews) Under the waters of...

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Geologists determine early Earth was a ‘water world’ by studying exposed...

Benjamin Johnson of Iowa State University woks at an outcrop in remote Western Australia where geologists are studying 3.2-billion-year-old ocean crust. Photo by Jana Meixnerova. Photos provided by...

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The Great Unconformity : A billion years is missing from the geologic record

Francis Macdonald walks along a road near Manitou Springs, Colorado, where an exposed outcrop shows a feature known as the “Great Unconformity.”Photo Credit: Rebecca Flowers The geologic record is...

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Earth’s evolutionary tale, researchers probe materials at deep-Earth conditions

Researchers developed a technique that allows them to study the atomic arrangements of liquid silicates at the extreme conditions found in the core-mantle boundary. This could lead to a better...

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New clues to deep earthquake mystery

Subduction zones occur where one tectonic plate dives under another. New computer modeling by Magali Billen, professor of earth and planetary sciences at UC Davis, shows why earthquakes on these...

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Scientists decipher the role of carbon and the break-up of continents

Proposed model for deep-carbon transport along a cratonic boundary in the EARS study region. University of New Mexico (UNM) Professor of Earth and Planetary Sciences, Dr. Tobias Fischer and Syracuse...

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Formation of the Alps: Detaching and uplifting, not bulldozing

Central Alps of Switzerland have been lifted to today’s height. Credit: ETH Zurich The Central Alps – in the middle of the picture the Oberalpstock – were not piled up in a bulldozer like manner but...

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East African Rift System is slowly breaking away, with Madagascar splitting...

Final model for the East African Rift System. Hashed lines indicate newly discovered broad deforming zone. Arrows represent predicted tectonic plate motions. ABFZ—Andrew Bain Fracture Zone; IFZ—Indomed...

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Piecing together the Alaska coastline’s fractured volcanic activity

Schematic diagram showing the geometry of a typical subduction zone and the production of arc volcanoes. Credit: Xiaotao Yang Among seismologists, the geology of Alaska’s earthquake– and volcano-rich...

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New research uncovers continental crust emerged 500 million years earlier...

A close-up image of bladed barite crystals in the Mapepe Formation in the Barberton Greenstone Belt of South Africa. Credit: Desiree Roerdink The first emergence and persistence of continental crust on...

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