23-Apr-2025
Melting #glaciers at the end of the #IceAge may have sped up #continentalDrift, fueled volcanic eruptions

https://www.eurekalert.org/news-releases/1080959 #science #geology #plateTectonics

Study reveals ‘flawed argument’ in debate over when plate tectonics began | Live Science…

Earth's crust today has a surprisingly similar composition to the planet's first outer shell, or "protocrust," new research finds... #platetectonics #continentaldrift #geography #earthsciences #geology

https://formuchdeliberation.wordpress.com/2025/04/19/study-reveals-flawed-argument-in-debate-over-when-plate-tectonics-began-live-science/

Study reveals ‘flawed argument’ in debate over when plate tectonics began | Live Science…

Earth's crust today has a surprisingly similar composition to the planet's first outer shell, or "protocrust," new research finds... #platetectonics #continentaldrift #geography #earthsciences #geology

https://formuchdeliberation.wordpress.com/2025/04/14/study-reveals-flawed-argument-in-debate-over-when-plate-tectonics-began-live-science-2/

Ancient tectonic plates' 'memories' influence their descent into Earth's mantle, reshaping our understanding of subduction and its global impacts. #PlateTectonics #EarthScience #Geology

https://geekoo.news/ancient-tectonic-memories-how-earths-past-shapes-its-deepest-movements/

Earth's internal heat budget (Earth 🌍)

Earth's internal heat budget is fundamental to the thermal history of the Earth. The flow of heat from Earth's interior to the surface is estimated at 47±2 terawatts and comes from two main sources in roughly equal amounts: the radiogenic heat produced by the radioactive decay of isotopes in the mantl...

https://en.wikipedia.org/wiki/Earth's_internal_heat_budget

#EarthSInternalHeatBudget #Earth #Geodynamics #HeatTransfer #PlateTectonics #GeothermalEnergy

Now I'm going to be real nerdy. You probably now understand I needed an extra (nerdy) account. Enjoy, my fellow nerds!

Howtown: *1 billion-year-old Earth, mapped*

https://www.youtube.com/watch?v=t1hOdm0RJlY (🛡️https://id.420129.xyz/watch?v=t1hOdm0RJlY)

"What did Earth look like a billion years ago? Before Pangea, before dinosaurs—even before oxygen filled the air—continents were on the move. In this Howtown episode, we travel billions of years into the past to explore a groundbreaking new plate tectonic model. Discover how scientists trace ancient continents using zircon crystals, magnetic minerals, glacial scars, and more. From massive dike swarms to lost supercontinents like Rodinia and Nuna, we unravel the clues that reveal Earth's epic tectonic story.

🔬 Featuring: Paleomagnetism, zircon dating, cratons, and the surprising history of plate tectonics
🛰️ NASA satellites, moon rocks, and ancient Canadian crust
👥 With special guest Joe Hanson.

Watch Joe's companion video on zircon dating here → https://www.youtube.com/watch?v=c4GRLFuTyQY (🛡️ https://id.420129.xyz/watch?v=c4GRLFuTyQY)

Key Source: Earth’s tectonic and plate boundary evolution over 1.8 billion years, Xianzhi Cao et al (2024) https://www.sciencedirect.com/science/article/pii/S1674987124001464

Full Source List: https://docs.google.com/document/d/14lCuGV0pR0kMJjlOAbgOTf-SH3WTpKsu5yV9ygTVLOQ/"

#geology #geography #PlateTectonics #science

North America is ‘dripping’ down into Earth’s mantle, scientists discover | Live Science…

Seismic mapping of North America has revealed that an ancient slab of crust buried beneath the Midwest is causing the crust above it to "drip" and suck down rocks from across the continent... #geology #platetectonics #geoscience #northamerica #geography

https://formuchdeliberation.wordpress.com/2025/04/03/north-america-is-dripping-down-into-earths-mantle-scientists-discover-live-science/

2-Apr-2025
Early #Earth's first #crust composition discovery rewrites geological timeline
Modern continental rocks carry chemical signatures from the very start of our planet’s history, challenging current theories about #plateTectonics.

https://www.eurekalert.org/news-releases/1078986 #science #geology #astrobiology