Tag

Earths Continents

All articles tagged with #earths continents

science3 months ago•4 min saved

Scientists Uncover the Hot Secret Stabilizing Earth's Continents and Life

New research reveals that Earth's stable continents were formed by extremely high temperatures deep within the crust, driven by radioactive decay of elements like uranium and thorium, which facilitated the cooling and solidification of the crust. These processes, akin to forging metal, shaped Earth's landmasses and created a stable foundation for life, offering insights into planetary habitability and guiding the search for life on other planets.

via Indian Defence Review|

#earths-continents #geoscience #planetary-habitability

science5 months ago•4 min saved

Magma-Submerged Land: Potentially Reshaping Earth's Continents

Scientists have discovered massive, branching mantle plumes beneath Earth that have historically shaped and may continue to reshape the planet's continents, including the formation of volcanic hotspots and the potential for future continental reconfigurations over millions of years.

via valleyvanguardonline.com|

#earths-continents #geophysics #mantle-plumes

science5 months ago•4 min saved

Ancient Mantle Chemistry Reveals Earth's Continents Began Forming 4.3 Billion Years Ago

Recent research using ancient crystal chemistry and geodynamic models shows Earth's continents began forming over 4.3 billion years ago, much earlier than previously believed, with implications for understanding Earth's climate and the development of life.

via Energy Reporters|

#crystal-analysis #early-earth #earths-continents

science5 months ago•4 min saved

Revised Timeline Reveals True History of Earth's Continent Formation

Recent research indicates Earth's continents formed much earlier than previously believed, around 4.3 billion years ago, driven by active tectonic processes and mantle plumes during the Hadean, challenging the idea of a stagnant early Earth and providing new insights into crust formation and mantle recycling.

via Indian Defence Review|

#early-earth #earths-continents #hadean-eon

science5 months ago•4 min saved

Earth's Continents Formed Earlier Than Previously Thought

A new study suggests that Earth's continents began forming much earlier than previously thought, with evidence of active plate tectonics and crust recycling during the Hadean eon, based on chemical analysis of ancient crystals and geodynamic models.

via Earth.com|

#early-earth #earths-continents #geochemistry

science2 years ago•4 min saved

Revisiting Theories on the Formation of Earth's Continents

New research challenges the theory that the crystallization of garnet in magma beneath volcanoes was responsible for removing iron from Earth's crust, allowing the crust to remain buoyant in the planet's seas and form the continents we see today. The team of researchers recreated the intense conditions of Earth's interior in the lab to test the garnet theory and found it to be an unlikely explanation for why magmas from continental arc volcanoes are oxidized and iron-depleted. The findings pose more questions than they answer, leaving geologists and planetary scientists to rethink how this iron may have been removed from the material that would go on to form Earth's continents.

via Space.com|

#earths-continents #garnet-theory #geology