Giant ‘Gravity Hole’ in the Ocean May Be the Ghost of an Ancient Sea
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https://www.scientificamerican.com/article/giant-gravity-hole-in-the-ocean-may-be-the-ghost-of-an-ancient-sea1/ <-- shared technical media article
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https://doi.org/10.1029/2022GL102694 <-- shared 2023 paper
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https://oceanservice.noaa.gov/facts/geoid.html <-- technical description of a geoid
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[theories abound]
"... KEY POINTS
• Employing time dependent global mantle convection models since the Cretaceous. [the authors] simulate the origin of the enigmatic Indian Ocean geoid low
• Plumes forming along the edges of the African Large Low Shear Velocity province (LLSVP) control the regional geoid in the Indian Ocean
• These plumes, in turn are generated by lower mantle Tethyan slabs that perturb the African LLSVP…”
#GIS #spatial #mapping #geoid #gravity #mapping #global #remotesensing #plume #ocean #ancientocean #gravityhole #geophysics #IndianOcean #geology #structuralgeology #crust #mantle #core #high #low #potsdamgravitypotato #IOGL #tomography #model #modeling #plate #tectonicplate #Tethys #slab #mantleplume #LLSVP #AfricanLargeLowShearVelocity
#tectonicplate
"Rebecca Bell, a tectonics expert at Imperial College London (ICL), suggested it was a side-to-side "strike-slip" of the #SagaingFault.
This is where the Indian #tectonicplate, to the west, meets the Sunda plate that forms much of #SoutheastAsia — a fault similar in scale and movement to the San Andreas Fault in California.
"The Sagaing fault is very long, 1,200 kilometres (745 miles), and very straight," Bell said. "The straight nature means #earthquakes can rupture over large areas — and the larger the area of the fault that slips, the larger the #earthquake."
Massive Tectonic Collision Causing Himalayas To Grow May Also Be Splitting Tibet Apart
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https://www.livescience.com/planet-earth/geology/massive-tectonic-collision-causing-himalayas-to-grow-may-also-be-splitting-tibet-apart <-- shared technical article
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https://essopenarchive.org/doi/full/10.22541/essoar.170000377.75686509/v1 <-- shared (pre-print) paper
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#GIS #spatial #mapping #tectonics #platetectonics #remotesensing #seismic #seismology #earthquakes #Tibet #Indian #Eurasian #plate #himalayas #geology #structuralgeology #tectonicplate #mountains #mountainrange #model #modeling #uplift #underplating #subduction #geoscience #earthscience #crust #geologicmodel
New Maps Of Global Geological Provinces And Tectonic Plate
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https://doi.org/10.1016/j.earscirev.2022.104069 <-- shared paper
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#GIS #spatial #mapping #tectonicplate #tectonicprovince #orogenicsystem #orogeny #geodynamics #spatialanalysis #geology #structuralgeology #tectonics #platetectonics #global #earth #opendata #spatialdata #GPS #earthquakes #volcanoes #topography #elevation #model #modeling #crust #mantle #geoscience #lithosphere #faults #faulting #geochronology #deformationzones #GitHub
Unlocking Seismic Secrets - Researchers Unearth The Mysteries Of How Turkey’s East Anatolian Fault Formed
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https://scitechdaily.com/unlocking-seismic-secrets-researchers-unearth-the-mysteries-of-how-turkeys-east-anatolian-fault-formed/ <-- shared technical article
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https://doi.org/10.1130/G51211.1 <-- shared paper
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#GIS #spatial #mapping #geology #earthquakes #model #modeling #fault #faulting #structuralgeology #spatialanalysis #remotesensing #seismic #seismicdata #EastAnatolianFault #Turkey #Syria #Anatolia #risk #hazard #platetectonics #tectonicplate #riskassessment
#NSF
W. Jason Morgan, who developed the theory of plate tectonics, died at 87.
#WJasonMorgan #JasonMorgan #TectonicsPlate #TectonicPlate
https://www.ganganews.com/breaking/news-headlines-updates-world-12-august-2023/
@lithospheric
That rocks! AT first I thought you'd written #Vulcan #Progeny and I wondered if #Spock's #PonFar had therefore been successful? Then I wiki'd & found: "the #VariscanOrogeny was a geologic mountain-building event caused by Late Paleozoic continental collision between #Euramerica #Larussia & #Gondwana to form the supercontinent #Pangaea"--aka a massive pile-up on a #TectonicPlate expressway... #Cool #Rock&Roll #StarTrek #AnthonyNewley #GonnaBuildAMountain https://www.youtube.com/watch?v=v6ndwRieyoc