💧🌏 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
💧🌏 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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“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..."
#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.

José A. CallejónMar 28, 2024

La corteza terrestre debajo de #Escandinavia se originó en Groenlandia y es unos 250 millones de años más antigua de lo que pensábamos", defiende el reputado geólogo Tod #Waigh tras un estudio del circón escandinavo realizado por los investigadores que demuestra que, su huella química coincide con la de algunas de las rocas más antiguas del planeta encontradas en el #Cratón del Atlántico 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 "nació" en Groenlandia según un nuevo estudio geológico

¿Qué relación geológica existe entre Groenlandia y Escandinavia?. Los científicos encuentran una relación 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, #Viśniówka #quarry

#geologytime #stratigraphy #crust #Baltic #paleocontinent

Matt WillemsenJun 14, 2023
Craton Deception: Geologists Challenge Conventional View of Earth’s 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’s 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