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#oxygenation

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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

graphic - the last 1.6 Gyr of Earth's tectonic history
schematics - Summary diagrams showing how plate tectonics stimulates life and evolution whereas a single lid tectonic style retards life and evolution.
graphic - The Drake Equation, a mathematical formula for the probability of finding life or advanced civilizations in the universe.
charts / graphics - Evolution of Earth’s tectonic regime over the past 1.6 Ga.
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Lukas VFN 🇪🇺

Ancient #ocean oxygenation timeline revealed
phys.org/news/2024-04-ancient-

Late Paleozoic #oxygenation of marine environments supported by #dolomite U-Pb dating nature.com/articles/s41467-024

"Their record indicates a dramatic increase in the oxygenation of the #oceans during the Late #Paleozoic era, hundreds of millions of years after the emergence of the first #animals. This aligns with other evidence... supports the hypothesis that animals have evolved in oceans that were mostly oxygen-limited"

Rock sample under microscope
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Lukas VFN 🇪🇺

#Ediacaran #fossils reveal origins of #biomineralization that led to expansion of life on Earth
phys.org/news/2023-09-ediacara

Constraining the onset and environmental setting of #metazoan biomineralization sciencedirect.com/science/arti

"#Cloudina originated in a low #oxygen environment with periods of notably higher #oxygenation... it was not a case of sustained oxygenation that resulted in the appearance of #skeletonization... high #carbonate concentrations in the ocean were necessary"

Schematic interpretation of depositional environments across the study area in Tsau Khaeb National Park, Namibia, during which Cloudina biomineralisation occurred. A) Marine transgression led to deposition of sandstones and siltstones in a shallow shoreface; b) continued marine transgression forming an evaporite basin partially restricted from the open ocean; c) peak sea level with open marine conditions and extensive carbonate deposits; d) sea level fall during which Cloudina biomineralisation occurred in periods of oxygenation
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ImaWorldWatcher🌏

Great , which occurred around 2.4 billion years ago, was one of the biggest of our planet. Before it, there was practically no oxygen in the ; after, there wa. Tthe rise of oxygen is sen as life triumphantly terraforming a passive planet. But we’re learning now that Earth was an active participant, and it took two more big lifts of oxygen over the succeeding before it reached breathable levels.

arstechnica.com/science/2023/0

Ars Technica · The complicated history of how the Earth’s atmosphere became breathableBiology, geology, and chemistry all worked together to make the present atmosphere.
Continued thread
Public
Artinis NIRS

All cells in all organs of the body have a constant but variable need for . However, the body stores for oxygen are minimal. A constant and adequate supply of oxygen to the tissues through the circulation is essential. Any interference with tissue oxygenation will lead very rapidly to irreversible damage.

Optical oximetry, and near infrared spectroscopy () in particular, is a tool for assessing of the status and of various organs, e.g. and .

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