#isotope — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #isotope, aggregated by home.social.
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Démystifier la saison des sucres
🔸En acériculture, les croyances populaires sont nombreuses, mais que dit la science ?
Par Pierre-Etienne Caza
https://actualites.uqam.ca/2026/demystifier-la-saison-des-sucres/
#sucre #érable #recherche #science #nature #eau #UQAM #thèse #acériculture #Québec #eau #arbre #racines #tronc #feuilles #biologie #botanique #deutérium #isotope #plantation #neige #froid #branches #sol #environnement #écologie -
TSR alters propane isotopes selectively at the central carbon while terminal carbon remains stable, providing a new tool to trace natural gas origins in sulfur-rich reservoirs. #openaccess at https://short-url.org/1q1id
#Isotope #Geochemistry #NaturalGas #TSR #Hydrocarbons -
Climatic And Anthropogenic Controls On Late Holocene Sediment Transport To The Gulf Of Mexico By The Mississippi River
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https://doi.org/10.1016/j.earscirev.2026.105401 <-- shared paper
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#water #hydrology #hydrography #humanimpacts #human #settlement #anthropogenic #levees #engineering #spatialanalysis #spatialtemporal #erosion #weathering #Mississippi #River #Sediment #Provenance #Zircon #grainsize #alluvial #alluvium #hydrogeomorphology #headwater #coast #coastal #delta #geology #Holocene #geochemistry #Sr #Nd #isotope #Strontium #Neodymium #detrital #climate #GulfofMexico -
Climatic And Anthropogenic Controls On Late Holocene Sediment Transport To The Gulf Of Mexico By The Mississippi River
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https://doi.org/10.1016/j.earscirev.2026.105401 <-- shared paper
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#water #hydrology #hydrography #humanimpacts #human #settlement #anthropogenic #levees #engineering #spatialanalysis #spatialtemporal #erosion #weathering #Mississippi #River #Sediment #Provenance #Zircon #grainsize #alluvial #alluvium #hydrogeomorphology #headwater #coast #coastal #delta #geology #Holocene #geochemistry #Sr #Nd #isotope #Strontium #Neodymium #detrital #climate #GulfofMexico -
RE: https://mstdn.social/@archaeology/115957273416138213
A great and detailed #study about early #medieval #migration events to #England from 400–1100 AD. The study concludes that, contrary to the #traditional #narrative, there was no abrupt migration event, but rather that England was settled #continuously. This is supported by #oxygen #isotope #analysis of human #teeth.
This text © #StefanFWirth 2026
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RE: https://mstdn.social/@archaeology/115957273416138213
A great and detailed #study about early #medieval #migration events to #England from 400–1100 AD. The study concludes that, contrary to the #traditional #narrative, there was no abrupt migration event, but rather that England was settled #continuously. This is supported by #oxygen #isotope #analysis of human #teeth.
This text © #StefanFWirth 2026
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The #copper #isotope #Cu-64 plays an important role in medicine: it is used in imaging processes and also shows potential for #cancer therapy. However, it does not occur naturally and must be produced artificially
#MolecularScience #Chemistry #sflorg
https://www.sflorg.com/2025/12/mols12052501.html -
The #copper #isotope #Cu-64 plays an important role in medicine: it is used in imaging processes and also shows potential for #cancer therapy. However, it does not occur naturally and must be produced artificially
#MolecularScience #Chemistry #sflorg
https://www.sflorg.com/2025/12/mols12052501.html -
29-Oct-2025
study uses ancient plant to decode #Earth's #climate history
the study focuses on #horsetails — hollow-stemmed #plants that have thrived on Earth for more than 400 million years. The team’s findings reveal that #water traveling through these plants undergoes such intense natural #distillation that its #oxygen #isotope ratios resemble those found in meteorites or in extraterrestrial materials.https://www.eurekalert.org/news-releases/1103877
#science #evolution #paleontology -
29-Oct-2025
study uses ancient plant to decode #Earth's #climate history
the study focuses on #horsetails — hollow-stemmed #plants that have thrived on Earth for more than 400 million years. The team’s findings reveal that #water traveling through these plants undergoes such intense natural #distillation that its #oxygen #isotope ratios resemble those found in meteorites or in extraterrestrial materials.https://www.eurekalert.org/news-releases/1103877
#science #evolution #paleontology -
Earth’s 8th Continent Buried Under The Pacific Finally Mapped By Scientists [Zealandia / Te Riu-a-Māui - “Finally”? ~wink~]
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https://dailygalaxy.com/2025/10/earth-8th-continent-finally-mapped/ <-- shared (somewhat) technical article
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https://doi.org/10.1029/2023TC007961 <-- shared 2023 paper
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https://youtu.be/DDbc4K7bgnA?si=EZFmmPFybPLLyND7 <-- 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 -
Earth’s 8th Continent Buried Under The Pacific Finally Mapped By Scientists [Zealandia / Te Riu-a-Māui - “Finally”? ~wink~]
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https://dailygalaxy.com/2025/10/earth-8th-continent-finally-mapped/ <-- shared (somewhat) technical article
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https://doi.org/10.1029/2023TC007961 <-- shared 2023 paper
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https://youtu.be/DDbc4K7bgnA?si=EZFmmPFybPLLyND7 <-- 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 -
For atomic nuclei, I understand that there is a stability benefit for having even numbers of protons or neutrons, and I understand why having too few neutrons would be destabilizing due to charge-charge repulsion, but why does having too *high* a number of neutrons also lead to nuclear instability? #science #chemistry #nuclear #isotope
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For atomic nuclei, I understand that there is a stability benefit for having even numbers of protons or neutrons, and I understand why having too few neutrons would be destabilizing due to charge-charge repulsion, but why does having too *high* a number of neutrons also lead to nuclear instability? #science #chemistry #nuclear #isotope
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“With the global #isotope market expected to grow from just over 13 billion Canadian dollars a year to over 45 billion Canadian dollars a year in the next decade, #Canada has a unique opportunity to lead and prosper.”
#FirstNations #cancertreatment #health #nuclear #Ontario #BrucePower
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“With the global #isotope market expected to grow from just over 13 billion Canadian dollars a year to over 45 billion Canadian dollars a year in the next decade, #Canada has a unique opportunity to lead and prosper.”
#FirstNations #cancertreatment #health #nuclear #Ontario #BrucePower
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Proud to be on this publication in GCA by Barbora Krizova et al. We show #clumped #isotope reordering in #Cretaceous rudist bivalves is location-specific. Understanding burial history is essential for selecting shell material for #paleoclimate #reconstructions. https://www.sciencedirect.com/science/article/pii/S0016703725004193
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Proud to be on this publication in GCA by Barbora Krizova et al. We show #clumped #isotope reordering in #Cretaceous rudist bivalves is location-specific. Understanding burial history is essential for selecting shell material for #paleoclimate #reconstructions. https://www.sciencedirect.com/science/article/pii/S0016703725004193
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The #clumped #isotope paleo temperature proxy is one of the most reliable means of temperature reconstruction in #geology. This new study shows that it can be applied equally on various carbonate minerals (calcite, aragonite, dolomite, witherite and siderite).
https://www.sciencedirect.com/science/article/pii/S0016703725003072
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The #clumped #isotope paleo temperature proxy is one of the most reliable means of temperature reconstruction in #geology. This new study shows that it can be applied equally on various carbonate minerals (calcite, aragonite, dolomite, witherite and siderite).
https://www.sciencedirect.com/science/article/pii/S0016703725003072
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Check out our latest #preprint in which we use a combination of #clumped and #oxygen #isotope measurements to reconstruct extreme summer temperatures experienced by #fossil #rudist bivalves from the Late #Cretaceous in Oman. All feedback is welcome!
https://egusphere.copernicus.org/preprints/2025/egusphere-2025-2308/ -
Check out our latest #preprint in which we use a combination of #clumped and #oxygen #isotope measurements to reconstruct extreme summer temperatures experienced by #fossil #rudist bivalves from the Late #Cretaceous in Oman. All feedback is welcome!
https://egusphere.copernicus.org/preprints/2025/egusphere-2025-2308/ -
I remember Jeremy McCormack presenting this nice #zinc #isotope dataset @ EGU this year showing how #Miocene sharks had diverse roles in the marine foodweb. Great study, glad to see it found a nice home in EPSL!
https://www.sciencedirect.com/science/article/pii/S0012821X25001918 -
I remember Jeremy McCormack presenting this nice #zinc #isotope dataset @ EGU this year showing how #Miocene sharks had diverse roles in the marine foodweb. Great study, glad to see it found a nice home in EPSL!
https://www.sciencedirect.com/science/article/pii/S0012821X25001918 -
This phenomenal study by Alexandre Pohl and colleagues investigates in a very comprehensive way how estimates of the #oxygen #isotope composition of seawater bias our #climate reconstructions, one of the most important uncertainties in #paleoclimate research.
https://www.sciencedirect.com/science/article/pii/S0012821X25002171
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This phenomenal study by Alexandre Pohl and colleagues investigates in a very comprehensive way how estimates of the #oxygen #isotope composition of seawater bias our #climate reconstructions, one of the most important uncertainties in #paleoclimate research.
https://www.sciencedirect.com/science/article/pii/S0012821X25002171
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Amino acid-specific #isotope analysis is really shaping up like a very promising tool for #paleo #ecology and #environmental studies!
https://www.sciencedirect.com/science/article/pii/S0031018225003256 -
Amino acid-specific #isotope analysis is really shaping up like a very promising tool for #paleo #ecology and #environmental studies!
https://www.sciencedirect.com/science/article/pii/S0031018225003256 -
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!
https://www.science.org/doi/10.1126/sciadv.adr9417 -
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!
https://www.science.org/doi/10.1126/sciadv.adr9417 -
#isotope enabled #climate #modelling brings reconstructions and models together more closely for the Late #Cretaceous, a warm period with high #greenhouse gas concentrations in the atmosphere (and dinosaurs!)
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2024PA005002 -
#isotope enabled #climate #modelling brings reconstructions and models together more closely for the Late #Cretaceous, a warm period with high #greenhouse gas concentrations in the atmosphere (and dinosaurs!)
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2024PA005002 -
#QuizOfTheDay: Which of the following #Radioactive #Isotope is used for determining the age of an object containing organic material / archeological specimens in fossils?
A. Carbon-14
B. Uranium-238
C. Rubidium-87
D. Nitrogen-14https://knowledgezone.co.in/resources/quiz?qId=642c0dc63c77d46a625c2880
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#QuizOfTheDay: Which of the following #Radioactive #Isotope is used for determining the age of an object containing organic material / archeological specimens in fossils?
A. Carbon-14
B. Uranium-238
C. Rubidium-87
D. Nitrogen-14https://knowledgezone.co.in/resources/quiz?qId=642c0dc63c77d46a625c2880
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Nice study testing models for #solid #state #reordering of #clumped #isotope values in #carbonate.
https://www.sciencedirect.com/science/article/pii/S0016703725001012 -
Nice study testing models for #solid #state #reordering of #clumped #isotope values in #carbonate.
https://www.sciencedirect.com/science/article/pii/S0016703725001012 -
Exploring macroevolutionary links in multi-species #planktonic #foraminifera Mg∕Ca and stable #oxygen #isotope from 15 Ma to recent @EGU_BioGeo https://bg.copernicus.org/articles/22/1095/2025/
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Exploring macroevolutionary links in multi-species #planktonic #foraminifera Mg∕Ca and stable #oxygen #isotope from 15 Ma to recent @EGU_BioGeo https://bg.copernicus.org/articles/22/1095/2025/
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Great paper by Gray and Brandon @G-cubed @Agu on the #clumped #isotope #temperature relationship in gar fish scales. I especially enjoyed reading about the treatment of effective vs mean temperatures and seasonal bias in these calibration studies.
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2024GC011714 -
Great paper by Gray and Brandon @G-cubed @Agu on the #clumped #isotope #temperature relationship in gar fish scales. I especially enjoyed reading about the treatment of effective vs mean temperatures and seasonal bias in these calibration studies.
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2024GC011714 -
"Good god! Do you realize what you've done?"
"Not quite."
"You've duplicated the pope! Except the new one is a bit heavier."
"True. That's because he is an isopope."
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"Good god! Do you realize what you've done?"
"Not quite."
"You've duplicated the pope! Except the new one is a bit heavier."
"True. That's because he is an isopope."
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A long-term #drought reconstruction based on #oxygen #isotope tree ring data for central and eastern parts of Europe (Romania) https://bg.copernicus.org/articles/22/55/2025/
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No better way to start the new #research year than with a new paper! Enjoy our review on #isotope #sclerochronology on #molluscs led by Andy Johnson! 🥳🍾
https://www.sciencedirect.com/science/article/pii/S0277379124005705 -
No better way to start the new #research year than with a new paper! Enjoy our review on #isotope #sclerochronology on #molluscs led by Andy Johnson! 🥳🍾
https://www.sciencedirect.com/science/article/pii/S0277379124005705 -
Despite increased millet farming, herders in Xinjiang's Keriya Valley #ancientchina stuck to traditional grazing 🐑 #isotope #palaeodiet study reveals. Most animals grazed on C3 plants in oases during #BronzeAge /#IronAge, but some surprising C4 signals in cattle & camel remains. 🏺 #archaeology
Dietary reconstruction of dome... -
@[email protected]
Zur IEA:
"Sie gilt als traditionell atomfreundlich."
https://de.m.wikipedia.org/wiki/Internationale_Energieagentur
Ups. Eigentor.
Ich wollte unabhängige, nicht lobbyismusgesteuerte Quellen. Kannst du nicht liefern.
Und zur geologischen Stabilität ohne Wassereinbruch usw. für Jahrtausende:
Gorleben macht vor, wie gut das funktioniert.
Garantieren kann das eh keiner.
Insofern bei deinen "Quellen': Traue keiner Statistik, die du nicht selbst gefälscht hast.
Zum "an Uran lecken":
In der Zerfallsreihe entsteht mitnichten nur leicht abschirmbare #Alphastrahlung. Auch die #Spaltprodukte zerfallen auch mitunter mit Betazerfällen, also #Betastrahlung.
#Gammastrahlung tritt als Begleiterscheinung auf.
In den #Zerfallsreihen entstehen auch #Plutonium #Isotope
Also ganz ungefährlich das #Uran und seine Spalt- und Zerfallsprodukte.
Und Paracelsus: Ja. Nutzt denen in der Nähe aber dann nix, wenn, wahrscheinlich lange Zeit unbemerkt, massiv radioaktive Stoffe aus dem Atommülllager in deren Trinkwasser eingetragen werden.
Du bist schlicht Atomlobbyist, vermutlich sogar beruflich in einer Interessensbranche tätig, der, so wie #Klimawandelleugner auch, tatsächlich glaubt, er sitzt in einem anderen Boot, wenn es zum #GAU kommt.
#Energiewende #Energiegewinnung #Atomkraftwerk #Kernkraftwerk #AKW #KKW #Atomkraft #Kernenergie #erneuerbareEnergien #regenerativeEnergien