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Earth Science: organic & inorganic (biology and rocks)

think

Because I think I have to?
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Two Giant Blobs Lurk Deep Inside Earth, And It Looks Like They're Shape-Shifters

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the living planet--- we are the little life forms on earths skin just like we have little life forms or microbes on our skin.. that probably have little life forms on the microbes on their skin --- on and on thru sub-quantum details of formless life there on the skin of the much smaller sub-quantum life forms upon them. it just never ends. what is there in between these layers? Where is the place where the earth's skin and the earth planet? Is there something not small like us but not big like the earth??. // I always thought of volcanoes as a kind of planet zit ---

https://www.sciencealert.com/two-gi...arth-and-it-looks-like-they-re-shape-shifters
 
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Ah, I haven't watched the video but I assume it's about the two large low shear-wave velocity provinces at the core-mantle boundary. The one underlying Africa has been named Tuzo and the one under the Pacific is called Jason. They are probably the origin of mantle plumes and possibly structures such as Kimberlite pipes. Some researchers think they are the remnants of old subducted oceanic plates; others have hypothesised that they are remnants of the body Thea that collided with Gaia (the ancient Earth) 4.5 billion years ago to form the Moon. I think the former idea is more likely.
 
I would expect that - any such collision would be massive and it would ages for the effects to "disappear".
It's all speculation though, unless someone invents a time-machine or a boring system that can survive that deep into the mantle...
 
The Earth's mantle and core should be modellable using the Navier-Stokes PDEs. The best we can do is simulations that present rough agreement with what little we do know about what is going on thousand of kilometres beneath our feet. We have to estimate the likely composition, temperature, pressure and so on. If the mantle can be represented as a very viscous fluid with a low Reynolds number, it is in principle possible to recover a plausible initial state from the current state by "unwinding". See around 12:30 in this YouTube explanation for a demonstration:

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Earth's past 1000 million years
https://phys.org/news/2023-02-geological-reveals-earth-million-years.html

Here is a nice way to show seismic waves in 3D
https://phys.org/news/2022-05-3d-reveal-seismic-earth.html

For this study in particular, they wanted to look at how seismic waves with different frequencies propagate through the ground. Lower-frequency waves are easier to detect and study, so they have been studied much more than high-frequency waves. But high-frequency waves are thought to be the main culprit for damage to buildings and infrastructure. With the printed model, the scientists could more directly simulate the higher-frequency waves.

Some of their findings were surprising. "This result actually shows that within the basin, the high-frequency waves are more diminished, which is almost exactly the opposite of what was previously thought," said Park.

At Earth's Core
https://www.nextbigfuture.com/2023/02/innermost-core-of-the-earth-confirmed.html
https://phys.org/news/2022-06-earth-feet-core-oscillates.html
https://phys.org/news/2023-03-neural-networks-destructive-earthquakes.html
https://phys.org/news/2023-03-crowdsourced-quickly-earthquake-impact.html
https://phys.org/news/2022-06-lab-earthquakes-grains-fault-boundaries.html
https://www.spacedaily.com/m/report...n_the_dynamics_of_extrasolar_planets_999.html
https://phys.org/news/2022-06-hindcasting-earthquakes-delaware-basin.html
https://www.space.com/earth-core-mantle-boundary-diamonds
https://phys.org/news/2023-03-rivers-sky-african-climate.html
https://phys.org/news/2023-02-mysteries-earth-fast-ancient-magma.html
https://anomalien.com/ancient-artifacts-of-guatemala-have-a-powerful-magnetic-field/
https://phys.org/news/2023-03-seismic-imaging-insight-earth-subsurface.html

New map of Earth's plates
https://phys.org/news/2022-06-global-geological-provinces-tectonic-plates.html
https://phys.org/news/2022-07-scientists-decipher-diverse-earth-minerals.html
https://phys.org/news/2022-06-3d-exploration-rare-earth-element.html
https://phys.org/news/2022-10-gravitational-deep-earth-great-impact.html
https://phys.org/news/2023-02-mysterious-honeycomb-patterns-salt-world.html

Moon formation--with videos
https://phys.org/news/2022-10-giant-impact-moon-rapidly-scientists.html

Geothermal blasting
https://techxplore.com/news/2022-06-exploring-explosives-geothermal-energy.html

Why are scientists setting off small-scale explosions inside 1-foot cubes of plexiglass? They're watching how fractures form and grow in a rocklike substance to see if explosives or propellants, similar to jet fuel, can connect geothermal wells in a predictable manner.

Clouds and snowball Earth
https://phys.org/news/2022-06-clouds-important-role-history-climate.html
https://phys.org/news/2023-03-robot-unprecedented-views-antarctic-ice.html

Iceland
https://weather.com/news/trending/video/erupting-iceland-volcano-doesnt-seem-to-bother-bystanders
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The Dino killer
https://phys.org/news/2022-10-dinosaur-killing-asteroid-triggered-global-tsunami.html
https://www.spacedaily.com/m/report...lobal_tsunami_peaking_at_a_mile_high_999.html
https://phys.org/news/2022-10-impact-dinosaurs-triggered-mega-earthquake-weeks.html
https://www.space.com/dinosaur-extinction-volcanoes-aided-asteroid-impact

Earth’s weight—six ronnagrams:
https://phys.org/news/2022-11-earth-ronnagrams-metric-prefixes-voted.html

Tonga—the biggest recorded by modern instruments:
https://phys.org/news/2022-11-shotgun-tongan-eruption-largest.html
https://phys.org/news/2023-03-reveal-disturbances-tonga-volcanic-eruption.html

Wildfires and forecasting
https://phys.org/news/2023-03-towering-wildfire-clouds-affecting-stratosphere.html
https://phys.org/news/2023-03-carbon-emissions-boreal-forest-rose.html
https://phys.org/news/2023-03-scientists-accuracy-weather-climate.html
https://phys.org/news/2023-02-bad-climate-threat-back-to-back-hurricanes.html

Hawaii’s biggest and more
https://www.nytimes.com/2022/12/03/science/mauna-loa-volcano-eruption-hawaii.html
https://phys.org/news/2023-03-birth-mexican-volcano-scientists-years.html
https://phys.org/news/2023-03-complex-seismic-tremor-italy-mefite.html
https://phys.org/news/2023-03-world-adequately-disasters.html

Landslides
https://phys.org/news/2023-03-reassessment-storegga-event-major-landslide.html
https://slate.com/technology/2013/12/landslide-astonishing-video-of-malaysian-tin-mine-collapse.html
https://phys.org/news/2022-10-nasa-climate-extremes-affect-landslides.html
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North America
https://www.reddit.com/r/educationa...gical_evolution_of_north_america_in_the_last/
 
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Georgia had a 3.9 quake.
https://www.al.com/news/2022/06/georgia-earthquake-saturday-felt-across-broad-region.html

Pyroclastic flow
https://weather.com/news/trending/v...sia-erupts-creating-spectacle-of-lava-and-ash

Volcanic lakes
https://www.space.com/international-space-station-acid-lake-mount-doom
https://www.cbr.com/lotr-rings-of-power-mount-doom-volcanology/
https://en.m.wikipedia.org/wiki/Lava_lake

spin-up
https://www.salon.com/2022/08/05/earth-is-spinning-faster-than-it-should-be-and-no-one-is-sure-why/

arabian plate
https://phys.org/news/2022-08-arabian-plate-steady.html

The hidden
https://www.livescience.com/4-billion-year-old-crust-australia
https://www.bbc.com/news/uk-wales-62605682
https://www.thevintagenews.com/2022/08/18/ancient-cuneiform/?ios=1&safari=1
https://gizmodo.com/dinosaur-tracks-texas-drought-1849440743
https://www.bbc.com/future/article/20220818-how-to-write-a-message-to-the-future
https://arkeonews.net/new-evidence-...-padang-could-be-worlds-oldest-known-pyramid/


Iceland again
https://www.dailymail.co.uk/science...ic-activity-building-Fagradalsfjall-area.html

Earth news
https://phys.org/news/2022-09-iceland-fagradalsfjall-eruptions-volcanoes.html
https://phys.org/news/2022-09-phase-transitions-olivine-deep-seismic.html
https://phys.org/news/2022-09-secrets-earthquake-safety-simulation.html
https://phys.org/news/2022-09-global-energy-spectrum-oceanic-circulation.html
https://phys.org/news/2022-09-millions-farmers-replumb-world-largest.html
https://phys.org/news/2022-09-crucial-component-sea-level.html
https://phys.org/news/2022-09-thickness-arctic-sea-ice-year.html
https://phys.org/news/2022-09-gough-lost-islands-welsh-folklore.html WALES

From the depths
https://phys.org/news/2022-10-decades-long-debate-shock-compressed-silicon-unprecedented.html
https://phys.org/news/2022-10-insights-ocean-oldest-carbon.html
https://weather.com/news/climate/vi...pstate-new-york-rocks-dating-back-390-million

The nitrogen trap
https://phys.org/news/2023-04-nitrogen-affect-soil-invertebrates-insects.html
 
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Ancient cave
https://www.thevintagenews.com/2023/04/24/theopetra-cave/?ios=1&safari=1

Volcano concerns
https://weather.com/news/trending/video/so-many-active-volcanoes-is-this-normal?adRef=brn
https://phys.org/news/2023-04-colombia-deadly-nevado-del-ruiz.html
https://m.jpost.com/environment-and-climate-change/article-723956
https://weather.com/science/video/hidden-underwater-volcano-near-italian-island
https://scrippsnews.com/stories/volcanic-eruption-creates-new-island-off-japan-but-it-won-t-last/

The Bundt volcano
https://www.livescience.com/planet-...derwater-volcano-that-looks-like-a-bundt-cake

Lawrence Livermore National Laboratory (LLNL) scientists have created a new adjoint waveform tomography model that more accurately simulates earthquake and explosion ground motions. The paper, published in the Journal of Geophysical Research: Solid Earth, was selected for an Editor's Highlight.
https://phys.org/news/2022-08-deep-ground-motion-accurately-simulates.html

Missing Volcano
https://nasawatch.com/earth-science/that-immense-event-on-earth-that-at-nasa-missed/
https://phys.org/news/2023-04-radar-satellite-reveals-previously-unknown.html

quake
https://studyfinds.org/1800s-earthquakes-aftershocks/

Volcanoes on TV
https://screenrant.com/rings-power-lotr-mount-doom-eruption-possible/

Tsunami
https://www.smithsonianmag.com/scie...tives-search-for-ancient-disasters-180981670/

Deep flood
https://phys.org/news/2022-11-magma-erupt-deeper-sources-earlier.html

Vents
https://phys.org/news/2023-04-scientists-hydrothermal-vent-fields-mid-atlantic.html

Magical rocks?
https://www.space.com/crystals-neolithic-ceremonial-site-uk

Meteor Craters
https://www.space.com/mystery-crater-by-dinosaur-killing-asteroid-relative
https://www.space.com/meteor-crater-hole-from-space-lunar-surface

Tonga
https://phys.org/news/2023-01-tonga-volcanic-eruption-foundational-knowledge.html
https://www.space.com/tonga-eruption-water-vapor-warm-earth
https://www.space.com/tonga-island-life-forms-unique

Landslide
https://phys.org/news/2022-12-malaysia-landslide-death-toll.html

Death Valley
https://phys.org/news/2022-12-death-valley-ubehebe-crater-reveals.html

Ghost islands and seamounts
https://www.nationalgeographic.co.u...se-fabled-ghost-islands-exist-only-in-atlases
https://phys.org/news/2022-12-hard-fiji-vanuatu-samoan-seamounts.html

Interactive quake globe
https://glowy-earthquakes.glitch.me/

Mammal evolution revised
https://phys.org/news/2023-04-genomes-species-redefine-mammalian-tree.html

Plants
https://phys.org/news/2023-04-isotope-vascular-colonized-extensively-early.html

The TARA expedition
https://phys.org/news/2023-04-viruses-giant-herpesviruses.html

deep finds
https://www.ksl.com/article/5077777...-off-coast-of-italy-hints-at-hidden-shipwreck

Moundville
https://www.atlasobscura.com/articles/serpent-mound-hopewell-ancient-earthworks-ohio-unesco
 
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