Results 161 to 170 of about 69,654 (263)
Differential Drivers of Thermogenic and Bulk Dissolved Organic Matter in the Indian Ocean
Global Biogeochemical Cycles, Volume 40, Issue 5, May 2026.Abstract The oceanic dissolved organic matter (DOM) pool contains a substantial fraction of recalcitrant carbon, with thermogenic organic compounds representing a chemically distinct, long‐lived component. However, the distribution and transformation of these compounds remain poorly constrained in the Indian Ocean, a key basin of the global overturning
Tassiana S. G. Serafim +7 more
wiley +1 more source
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.Abstract Laminated soil carbonate rinds are a Quaternary paleoclimate archive whose isotope composition is linked to soil formation conditions. At Rio Mesa, Utah (USA), we investigated the fidelity of rind records in a river terrace setting by determining the seasonal timing of rind formation and testing for inter‐record replication.
Tyler E. Huth +8 more
wiley +1 more source
A Hierarchical Bayesian Model for the Global Holocene Geomagnetic Field
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.Abstract We present a hierarchical Bayesian model of the global geomagnetic field for the last 8,000 years. The model is built solely with thermoremanent records, which include archeomagnetic and volcanic data. Building upon previous work, this model includes fewer approximations and treats model hyperparameters as probabilistic variables.
M. A. Schanner, S. Panovska, M. Korte
wiley +1 more source
Radiocarbon calibration and age estimation
, 2019 Radiocarbon dating can be applied to archaeological materials which contain radiocarbon from the atmosphere or the oceans. In order to interpret radiocarbon measurements as dates, it is necessary to compare them against measurements on known‐age samples which have been dated by other methods. This allows calibration onto a timescale derived from either
openaire +1 more source
Paleoceanography and Paleoclimatology, Volume 41, Issue 5, May 2026.Abstract Proxy records of seawater radiocarbon (14C/C) provide strong constraints on how changes in ocean ventilation contributed to the increase in atmospheric CO2 during the termination of the last ice age (≈18,000‐to‐12,000 years ago). One outstanding problem, however, is the existence of anomalously low deglacial benthic foraminiferal 14C/C in the ...
Patrick A. Rafter +14 more
wiley +1 more source
Paleoceanography and Paleoclimatology, Volume 41, Issue 5, May 2026.Abstract Climate change is currently driving the expansion of oxygen minimum zones (OMZs), areas of the open ocean with consistently low oxygen levels. Changes in temperature, productivity and consequent respiration, and water mass ventilation drive OMZ expansion and contraction with implications for ecosystem function and biogeochemical cycling ...
Rachel Alcorn +7 more
wiley +1 more source
Resilience to Cardiac Aging in Greenland Shark Somniosus microcephalus
Aging Cell, Volume 25, Issue 5, May 2026.Greenland shark Somniosus microcephalus shows severe cardiac aging such as fibrosis, lipofuscin buildup, mitochondrial damage, and oxidative stress, unseen in comparison species Etmopterus spinax and Nothobranchius furzeri, yet remain healthy. S. microcephalus resilience suggests unique mechanisms that preserve heart function for centuries, offering ...
Elena Chiavacci +14 more
wiley +1 more source
Puzzling parrotfishes: Radiocarbon age validation and updated longevity estimates for western Atlantic species in support of sustainable fisheries management. [PDF]
PLoS OneRivera Hernandez JM, Shervette VR.
europepmc +1 more source
Archaeometry, Volume 68, Issue S2, Page S47-S68, May 2026.Abstract This paper explores the relationship between wetland ecosystems and prehistoric lakeshore settlements within the Lake Ohrid basin (a biodiversity hotspot) by considering plant food systems at Ploča Mičov Grad, North Macedonia. The mid‐fifth millennium (c.4555–4373 to 4437–4241 cal BCE) waterlogged assemblage contained a diverse spectrum of ...
Amy Holguin +14 more
wiley +1 more source
Archaeometry, Volume 68, Issue S2, Page S104-S129, May 2026.Abstract Recent approaches to fisheries research emphasize the importance of the coproduction of knowledge in building resilient and culturally mindful fisheries management frameworks. Despite widespread recognition of the need for Indigenous knowledge and historical reference points as baseline data, archaeological data are rarely included in ...
Ross Salerno +9 more
wiley +1 more source