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#isotope — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #isotope, aggregated by home.social.

  1. Earth’s 8th Continent Buried Under The Pacific Finally Mapped By Scientists [Zealandia / Te Riu-a-Māui - “Finally”? ~wink~]
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    dailygalaxy.com/2025/10/earth- <-- shared (somewhat) technical article
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    doi.org/10.1029/2023TC007961 <-- shared 2023 paper
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    youtu.be/DDbc4K7bgnA?si=EZFmmP <-- shared animation
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    "KEY POINTS
    • Basalts and pebbly to cobbly sandstones have been dredged from the Fairway Ridge, Coral Sea
    • Dating of the rocks and interpretation of magnetic anomalies allow mapping of major geological units across North Zealandia
    • This work completes offshore reconnaissance geological mapping of the entire 5 million square km Zealandia continent…”
    #geology #doggerland #Zealandia #TeRiuaMaui #godwana #godwanaland #cretaceous #mapping #geologicmapping #spatialanalysis #model #modeling #NewZealand #SouthPacific #continent #sampling #sediment #dredging #petrography #geochemistry #isotope #analyses #research #cenozoic #intraplate #platetectonics #tectonics #eocene #remotesensing #geophysics #geomagnetism

  2. A very cool study using #clumped #isotope measurements in #oyster shells from the Early #Cretaceous showing high and variable #seasonality in response to climate changes caused by atmospheric #CO2 shifts. #mollusk shells again demonstrated as useful climate archives!
    science.org/doi/10.1126/sciadv

  3. Thermal-induced #crystallographic transformation in shells of #mussels reveal that crystallographic features in the #carbonate are more resistant to #diagenetic alteration than stable #isotope ratios.
    sciencedirect.com/science/arti