A significant negative δ 238 U excursion (~0.4‰) starting just prior to the onset of the negative carbon isotope excursion within the Toarcian Oceanic Anoxic Event (T-OAE) has been recorded, followed ...

Rapid shift in methane carbon isotopes suggests microbial emissions drove record high atmospheric methane growth in 2020–2022. ... Atmospheric δ 13 C CH4 of background air samples collected from the ...

Physicists have solved a long-standing puzzle about mercury’s nuclear fission by using a five-dimensional model that ...

Discover how scientists found and dated the oldest rocks on the planet, and why studying them can help explain how life on ...

The team will focus on identifying an efficient method for separating and purifying Promethium-147, an isotope that plays a ...

Also the isotope fractionation of the abiotic model reaction—acid-catalyzed hydrolysis in water—is stronger than observed in our experiment with Polaromonas sp. Nea-C. Taken together, this evidence is ...

Using coupled isotopes, a new study shows that a class of economically important granites are derived by sediment melting without mantle input.

ESPN will host an episode of SportsCenter at Isotopes Park on July 2. The network’s flagship sports news show is taking part in a special “SportsCenter: 50 States in 50 Days” this summer ...

Stable isotope tracing, which employs isotopic tracers such as 13 C or 15 N to trace the dynamics of soil amino compounds, has emerged as a reliable tool in soil metabolomics and fluxomics research.

WASHINGTON , June 11, 2025 (GLOBE NEWSWIRE) -- ASP Isotopes Inc. NASDAQ: ASPI ("ASP Isotopes” or the “Company”), an advanced materials company dedicated to the development of technology and ...

Lead isotope analysis shows the famed Dutch silver basin was not made entirely from Spanish treasure fleet silver, but from mixed sources. In contrast, the accompanying ewer was crafted from ...