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

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

🥁 Monday, December 15 at 10:00 (UTC+1).🥁

--> PhD defense of Taha ATTOU

Quantifying #water fluxes across a semi-arid soil-plant-atmosphere continuum under contrasting #irrigation practices: an #ecohydrological #modeling and water #stable #isotope approach

https://watson-cost.eu/2025/10/26/defence-of-the-doctoral-dissertation-by-taha-attou/

Defence of the Doctoral Dissertation by Taha Attou – Watson

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
A New Kind of Copper from the Research Reactor

Cu-64 is a copper isotope needed for medical applications — but it is very difficult to produce

Die Zukunft von Isotope, Teil 2 - Isotope eCommerce

In Teil 1 zu Isotope für Contao 5 habe ich erläutert, dass es bei Isotope viel Gutes, aber auch viel Ersetzbares gibt. In Teil 2 geht es um die Planung der neuen Version.

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

UNM-led study uses ancient plant to decode Earth's climate history

A team of researchers at The University of New Mexico has uncovered how a peculiar, prehistoric plant might unlock new ways to reconstruct Earth's ancient climate. Led by UNM Earth and Planetary Sciences Professor Zachary Sharp, the study published in the Proceedings of the National Academy of Sciences (PNAS) titled, “Extreme triple oxygen isotope fractionation in Equisetum” 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.

EurekAlert!

⏰New paper⏰

Very excited to share our more recent paper published today in @nature Communications, where we show based on #clumped #isotope measurements in a giant sea #snail 🐚 that Europe experienced a monsoon-like climate during the #Eocene high-CO2 period.

https://www.nature.com/articles/s41467-025-64241-0

A European monsoon-like climate in a warmhouse world - Nature Communications

Daily climate 45 million years ago is reconstructed using fossil snail shells, revealing monsoon-like conditions in Europe. The findings help predict how future warming could affect rainfall and seasons.

Nature
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