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#continents
Greg Cocks Witness 1.8 Billion Years Of Tectonic Plates Dance Across Earth’s Surface In A New Animation
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https://theconversation.com/witness-1-8-billion-years-of-tectonic-plates-dance-across-earths-surface-in-a-new-animation-238209 <-- shared article
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https://doi.org/10.1016/j.gsf.2024.101922 <-- shared paper
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https://youtu.be/_LJG68AmZxI?si=BBBDZg8Qn7DPy2WV <-- shared animation
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#GIS #spatial #mapping #model #modeling #geology #structuralgeology #global #earth #tectonics #tectonicplates #platetectonics #Gondwana #continents #spatiotemporal #Pangaea #Rodinia #Nuna #supercontinent #animation #video #reconstruction
Read the #science details here:
Secular #Evolution of #Continents and the Earth System
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2022RG000789
#Travellers #advised to consider #mpox #vaccine
The #European #CentreforDiseasePreventionandControl (ECDC) has updated its #recommendations in response to #outbreaks of a new #strain of the #virus in #Africa. Other #continents, including #Europe, can expect some #cases too, it says.
#Women #Transgender #LGBTQ #LGBTQIA #Health #Healthcare #Travel #Tourism #PinkTourism
3.75 Billion Year Old – Scientists Discover Evidence of an Ancient Segment of Earth’s Crust
https://scitechdaily.com/3-75-billion-year-old-scientists-discover-evidence-of-an-ancient-segment-of-earths-crust/ #geology #crust #zircon # FennoscandianShield #greenland #continents # Eoarchean
Our #Earth is around 4.5 billion years old.
Way back in its earliest years, vast #oceans dominated. There were frequent volcanic eruptions and, because there was no free #oxygen in the #atmosphere, there was no #ozone layer. It was a dynamic and evolving #planet.
Cratons are pieces of ancient #continents that formed billions of years ago.
Studying them offers a window into how processes within and on the surface of Earth operated in the past.
https://phys.org/news/2024-02-earth-early-evolution-fresh-insights.html
Ah, Antarctica: the seventh continent. Or is it the fourth? Or even the third? When you get down to it, what is a "continent", anyway?
Read more at my #blog: https://www.adamasnemesis.com/2024/01/14/the-seventh-continent-or-is-it/
This post's featured image is a map of the world in Buckminster Fuller's Dymaxion projection.
Study reshapes understanding of mass #extinction in Late Devonian era
https://phys.org/news/2023-12-reshapes-mass-extinction-late-devonian.html
The expansion of #LandPlants during the Late #Devonian contributed to the marine #MassExtinction https://www.nature.com/articles/s43247-023-01087-8
"Diverse and full of #SeaLife, the Earth's Devonian era—taking place more than 370 million years ago—saw the emergence of the first seed-bearing #plants, which spread as large #forests across the #continents of #Gondwana and #Laurussia."
Earth's #biosphere was able to increase as #continents emerged.
But when could continents first appear on rocky #planets of nearby #stars?
Radiogenic heating of the planetary mantle is evaluated through stellar metallicities.
The heat per unit mantle mass is compared to a threshold on Earth after which continents appeared.
Longer delays are inferred for some #exoplanets, but earliest continents could have arisen 2 Gyr before those on Earth.
#astrobiology #astronomy
https://iopscience.iop.org/article/10.3847/2515-5172/acf91a
Uncovering Mantle Heterogeneities Beneath Drifting Continents
Computational models of the composition and volumes of magmas during continental rifting evolution provide clues on the heterogeneities of the deep melting mantle.
https://eos.org/editor-highlights/uncovering-mantle-heterogeneities-beneath-drifting-continents #Mantle #Heterogeneities #Drifting #Continents #rifting
#Volcanism 56 million years ago released more #methane than thought https://phys.org/news/2023-08-volcanism-million-years-methane-thought.html
Shallow-water #hydrothermal venting linked to the #Palaeocene–#Eocene Thermal Maximum https://www.nature.com/articles/s41561-023-01246-8
"About 55 million years ago, the #AtlanticOcean was born. Until then, #Europe and #America were connected. As the #continents began to move apart, the Earth's crust ruptured, releasing large volumes of #magma... #HydrothermalVents were active at very shallow depths or even above #SeaLevel"
Long-Lost Remnants Of Ancient Continents Still Lurk Beneath Antarctica
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https://www.iflscience.com/long-lost-remnants-of-ancient-continents-still-lurk-beneath-antarctica-69572 <-- shared technical article
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https://doi.org/10.1038/s41598-018-34733-9 <-- shared paper
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#GIS #spatial #mapping #remotesensing #satellite #GOCE #gravity #seismology #antarctica #cratons #lithosphere #continents #gravitygradients #model #modeling #tectonics #geology #structuralgeology #platetectonics #orogen #earthhistory #geologichistory
@ESA
These #birds #travel across #continents & countries via many #international #migratory routes, in much the same way that airlines move across the world on designated routes. Three major #WildBird #MigratoryRoutes from #Asia & #Europe #transverse Nigeria. That’s good news for #biodiversity - #badnews for #disease control. #MigratoryBirds from Europe move into #Nigeria every year during the cold #harmattan season. This is the #PeakTime for #AvianFlu #outbreaks .