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continents

Photo of a rock outcrop.
Posted inEditors' Highlights

Remagnetization Illuminates Tectonic Consolidation of Megacontinents

by Agnes Kontny 31 March 202527 March 2025

New rock and paleomagnetic research give evidence for prolonged heating during the Cambrian-Ordovician tectonic consolidation of West Gondwanaland.

Field photo of a rock outcrop.
Posted inEditors' Highlights

Structural Inversion of an Intracratonic Rift System in Deep Time

by Alexis Ault 31 October 202431 October 2024

A new study reconstructs how an ancient North American rift system was uplifted in space and time due to subsequent continent-continent collision.

Rocas saliendo del océano en una costa
Posted inNews

Circones de 4,000 millones de años podrían contener nuestras evidencias más antiguas de la existencia de agua dulce

by Nathaniel Scharping 4 September 20244 September 2024

Cristales australianos apuntan a la existencia de agua dulce, así como de continentes que se elevaban sobre el océano Hadeano de la Tierra.

A view of a river running through a valley with green trees. On the right, in the foreground, is a ledge of red rocks.
Posted inResearch Spotlights

Lithospheric Oddities May Be Sculpting Continental Interiors

Sarah Stanley, Science Writer by Sarah Stanley 20 August 202420 August 2024

Researchers propose a novel explanation for vertical motions of Earth’s surface far from active tectonic plate boundaries.

Rocas grises bandeadas entre pasto verde y pequeñas flores blancas
Posted inNews

Sedimentos radiactivos podrían haber construido los cratones de la Tierra

Javier Barbuzano, Science Writer by Javier Barbuzano 2 August 20242 August 2024

La meteorización de los primeros continentes podría haber puesto en marcha la formación de cratones, las raíces inmutables de los continentes.

Rocks sticking out of the ocean on the shore
Posted inNews

Four-Billion-Year-Old Zircons May Contain Our Earliest Evidence of Fresh Water

by Nathaniel Scharping 16 July 20244 September 2024

Australian crystals hint at fresh water, as well as land rising above Earth’s Hadean ocean.

Sediment cores from the seafloor off New Zealand
Posted inNews

Sedimentary Basins Tell Zealandia’s Ancient Story

by Kate Evans 24 June 202424 September 2024

New interpretations and mapping of all New Zealand’s offshore sedimentary basins offer clues about the evolution of Earth’s eighth continent.

Gray rocks among green grasses and flowers
Posted inNews

Radioactive Sediments May Have Built Earth’s Cratons

Javier Barbuzano, Science Writer by Javier Barbuzano 14 June 20244 August 2024

Weathering of the earliest continents could have set in motion the formation of cratons, the immutable roots of continents.

A planet with oceans, clouds, and landmasses appears against a black background.
Posted inNews

A Step Closer to Solving the Fermi Paradox

Katherine Kornei, Science Writer by Katherine Kornei 24 May 20249 January 2025

Finding evidence of complex life elsewhere in the Milky Way galaxy hinges on locating rocky planets with plate tectonics and a mixture of landmasses and oceans, new research suggests.

Swirly white and black rock
Posted inNews

From First Continents to Fancy Countertops

by Tom Metcalfe 18 April 202420 June 2024

A new study suggests melting gabbros may have helped form Earth’s first continents, riling a long-standing debate.

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