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#platetectonics

3 posts3 participants0 posts today
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Planetary Ecologist

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...

en.wikipedia.org/wiki/Earth's_

#EarthSInternalHeatBudget#Earth#Geodynamics
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formuchdeliberation

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

formuchdeliberation.wordpress.

for much deliberation · 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 contin…
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formuchdeliberation

The Brighter Side of News: Breakthrough study finds that Earth has six continents not seven…

The study argues that the traditional division of continents might not be as clear-cut as we think. According to the findings, North America and Europe—separated by the Atlantic Ocean—may still be geologically linked... #geography #platetectonics #geology #earthscience

formuchdeliberation.wordpress.

for much deliberation · The Brighter Side of News: Breakthrough study finds that Earth has six continents not seven…The study argues that the traditional division of continents might not be as clear-cut as we think. According to the findings, North America and Europe—separated by the Atlantic Ocean—may still be …
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formuchdeliberation

Interesting facts #196 ~ When did plate tectonics begin?…

Unlike every other known planet in the universe, Earth's surface is made up of rigid plates that shift, crash into each other and dive into the planet's interior... #geography #geology #interestingfacts #earthscience #geologicaltime #platetectonics Read more about plate tectonics @ Live Science:

formuchdeliberation.wordpress.

for much deliberation · Interesting facts #196 ~ When did plate tectonics begin?…Unlike every other known planet in the universe, Earth’s surface is made up of rigid plates that shift, crash into each other and dive into the planet’s interior… #geography #geol…
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Bill Minarik

Quebec has industrial quantities of kyanite -although I don't think any are being mined today. They're in the Grenville, the roots of the Himalayan-scale mountains formed over a billion years ago. The screenshot below is from MinDat: mindat.org/locentries.php?p=14

The Ministère has an awkwardly translated page "Mineral Substances in Quebec" that includes Kyanite in its list of wealth:
gq.mines.gouv.qc.ca/portail-su

#MinCup24#Kyanite#Quebec
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💧🌏 Greg Cocks

New Theory On Why We Are Alone In The Cosmos - Tectonic Plates | Plate Tectonics Might Only Occur On 0.003% Of Planets; That Makes Earth Very Special Indeed
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forbes.com/sites/jamiecartereu <-- shared media article
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universetoday.com/167659/plate <-- shared technical article
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doi.org/10.1038/s41598-024-547 <-- shared paper
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#geology #structuralgeology #life #universe #everything #platetectonics #oceans #continents #earth #complexlife #drakeequation #evolution #biology #nutrients #oxygen #oxygenation #water #hydrology #climate #habitat #ecosystems #erosion

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💧🌏 Greg Cocks

Earth May Have Had A Ring System 466 Million Years Ago
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phys.org/news/2024-09-earth-mi <-- shared technical article
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doi.org/10.1016/j.epsl.2024.11 <-- shared paper
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“HIGHLIGHTS:
• Earth may have had a ring during the middle Ordovician, from ca. 466 Ma.
• Breakup of an asteroid passing within Earth's Roche limit likely formed the ring.
• Among several features preserved is a near-equatorial band of impact craters.
• Shading of Earth by the ring may have triggered a global icehouse period…”
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#GIS #spatial #mapping #model #modeling #geology #structuralgeology #planetarygeology #rings #climatechange #paleoclimate #Ordovician #asteroid #rochelimit #craters #impactcrater #crater #icehouse #meteorite #platetectonics #HirnantianIcehouse

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