馃挧馃審 Greg CocksMay 13, 2024
The Craton Enigma - Scientists Propose a New Continental Formation Theory
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https://scitechdaily.com/the-craton-enigma-scientists-propose-a-new-continental-formation-theory/ <-- shared technical article
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https://doi.org/10.1038/s41586-024-07307-1 <-- shared paper
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#GIS #spatial #mapping #geology #structuralgeology #cratons #craton #planetary #evolution #platetectonics #earth #structure #geologicalhistory #cooling #rock #weathering #erosion #water #Archaean #continental #crust #mantle #landmasses #continentalcrust #subaerial #magma #terrigenous #sediments #sedimentation #lithosphere
The Craton Enigma: Scientists Propose a New Continental Formation Theory

Ancient, vast stretches of continental crust known as cratons have stabilized Earth's continents for billions of years through shifts in landmasses, mountain formation, and ocean development. Scientists from Penn State have suggested a new mechanism that could explain the formation of cratons around

SciTechDaily
馃挧馃審 Greg CocksApr 3, 2024
New Geological Study Shows Scandinavia Was Born In Greenland
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https://phys.org/news/2024-03-geological-scandinavia-born-greenland.html <-- shared technical article
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https://doi.org/10.1130/G51658.1 <-- shared paper
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鈥淭he oldest Scandinavian bedrock was "born" in Greenland according to a new geological study from the University of Copenhagen. The study helps us understand the origin of continents and why Earth is possibly the only planet in our solar system with life..."
#geology #structuralgeology #Scandinavia #greenland #finland #research #crust #mantle #zircon #gneiss #denmark #craton #lithosphere #shield #FennoscandianShield #Archean #Eoarchean #NorthAtlanticcraton #geologymap #mapping
New geological study shows Scandinavia was born in Greenland

The oldest Scandinavian bedrock was "born" in Greenland according to a new geological study from the University of Copenhagen. The study helps us understand the origin of continents and why Earth is possibly the only planet in our solar system with life.

Jos茅 A. Callej贸nMar 28, 2024

La corteza terrestre debajo de #Escandinavia se origin贸 en Groenlandia y es unos 250 millones de a帽os m谩s antigua de lo que pens谩bamos", defiende el reputado ge贸logo Tod #Waigh tras un estudio del circ贸n escandinavo realizado por los investigadores que demuestra que, su huella qu铆mica coincide con la de algunas de las rocas m谩s antiguas del planeta encontradas en el #Crat贸n del Atl谩ntico Norte, en el oeste de #Groenlandia. Los hallazgos se publican en la revista Geology.

https://www.tiempo.com/ram/escandinavia-nacio-en-groenlandia.html

Sorprendente descubrimiento: Escandinavia "naci贸" en Groenlandia seg煤n un nuevo estudio geol贸gico

驴Qu茅 relaci贸n geol贸gica existe entre Groenlandia y Escandinavia?. Los cient铆ficos encuentran una relaci贸n estrecha entre estas regiones lejanas

Tiempo.com | Meteored
attresa.geoAug 9, 2023

This is a 1.5 billion year old sea coast. Part of the Baltic #craton. Depth up to 20-30 meters.

Upper #Cambrian, #Vi艣ni贸wka #quarry

#geologytime #stratigraphy #crust #Baltic #paleocontinent

Matt WillemsenJun 14, 2023
Craton Deception: Geologists Challenge Conventional View of Earth鈥檚 Continental History and Stability
Contrary to previous theories, the study found that the mantle keels, once thought to be buoyant and stable, are dense and subject to significant change over time, altering our understanding of continental evolution and the operation of plate tectonics.
https://scitechdaily.com/craton-deception-geologists-challenge-conventional-view-of-earths-continental-history-and-stability/ #geology #craton #tectonics #geophysics
Craton Deception: Geologists Challenge Conventional View of Earth鈥檚 Continental History and Stability

A new study challenges longstanding beliefs about Earth's stable cratons, revealing that they have undergone repetitive deformation beneath their crust since formation. Contrary to previous theories, the study found that the mantle keels, once thought to be buoyant and stable, are dense and subject

SciTechDaily