Results 71 to 80 of about 1,519 (181)

Stable water isotope composition (δ18O and δD) of firn core FP-1 from King George Island, Antarctica

, 2019
High resolution stable water isotope composition (δ18O and δD) of firn cores FP-1 retrieved at King George Island, South Shetland Islands, Antarctica. The core was sampled at 5 cm resolution at the Alfred Wegener Institute (AWI) ice core facilities in ...
Meyer, Hanno, Fernandoy, Francisco, Hanno Meyer (6963368), Francisco Fernandoy (6981368), Tonelli, Marco, Marco Tonelli (178598)   +5 more
core   +1 more source

Multifactorial diagnosis of drought‐induced decline in Mediterranean conifer forests

Journal of Ecology, Volume 114, Issue 10, October 2026.
A multi‐proxy approach integrating radial growth, leaf morphology, stable isotopes, elemental composition and soil properties revealed interacting mechanisms underlying drought‐induced dieback in Mediterranean pine populations. Declining trees showed stronger drought impacts on growth, altered stomatal regulation, nutrient imbalances and accelerated ...
Ester González de Andrés, Antonio Gazol, José Ignacio Querejeta, Cristina Valeriano, Michele Colangelo, Cristopher Fernández‐Blas, Marina Rodes‐Blanco, Paloma Ruiz‐Benito, J. Julio Camarero   +8 more
wiley   +1 more source

The Altitude Effect of Stable Isotopes in Rivers Over the Tibetan Plateau

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract The altitude effect of stable isotopes in river water is key to paleoelevation reconstruction, yet remains poorly quantified at regional scales due to monitoring challenges. This study compiled river water isotope data across the Tibetan Plateau and used a decision‐tree‐based random forest model to simulate high‐resolution δ18O patterns.
Yakui Chen, Yanlong Kong, Tao Pu, Xiaoyi Shi   +3 more
wiley   +1 more source

Can δD and δ18O stable isotopes be used to detect long-range dispersal among carabid beetles?

, 2017
We studied if hydrogen (δD) and oxygen (δ18O) stable isotope values in three common carabid species in intensively managed agricultural landscapes in southernmost Sweden indicate long-range dispersal.
Erkki Palmu, Birkhofer, Klaus, Hedlund, Katarina, Palmu, Erkki, Hanson, Helena I., Helena I. Hanson, Klaus Birkhofer, Katarina Hedlund, Hanson, Helena I.,, Hedlund, Katarina,, Lund University., Birkhofer, Klaus,   +11 more
core   +1 more source

Permafrost Detachment Slides: A Distinct High‐Magnitude Permafrost Mass Wasting Process

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Warming permafrost is destabilizing landscapes, intensifying thaw‐driven mass wasting and giving rise to novel landslide forms. We characterize two recent (2017 and 2018), deep‐seated translational failures that we term Permafrost Detachment Slides (PDSs), which rapidly translocated 4.5 and 18 × 106 m3 of frozen material into downstream ...
J. M. Young, J. van der Sluijs, S. V. Kokelj, S. Gruber, T. Herring, A. C. A. Rudy, A. Alvarez, D. Froese   +7 more
wiley   +1 more source

Implementing and simulating the water isotopes (δ18O and δD) distribution in the Mediterranean Sea using a high-resolution oceanic model

International audienceWater isotopes are one of the most widely used proxies in ocean climate research. However, there are still gaps in our understanding of the processes that control their composition.
Mouchet, Anne, Kazuyo, Tachikawa, Ayache, Mohamed, Risi, Camille, Dutay, Jean-Claude, Ramstein, Gilles   +5 more
core   +1 more source

Geochemistry of low‐temperature dolomite formation in coastal and continental saline to sabkha‐like environments

The Depositional Record, Volume 12, Issue 4, September 2026.
This study compares primary dolomite precipitation in modern and ancient environments, varying from coastal to transitional to continental saline environments. The microbially mediated dolomites are characterised by high Sr concentrations. Here, various geochemical proxies are studied and compared to previous findings.
Carlette N. Blok, Luis Gibert, Zeina Naim, Jordi Ibáñez‐Insa, Mónica Sánchez‐Román   +4 more
wiley   +1 more source

Badanie przepływu wód podziemnych za pomocą Δ18O i ΔD w kopalni siarki w Japonii [PDF]

, 2020
The A sulfur mine is located in the Iwate Prefecture of Japan. This mine has both surface and underground parts and was operated from the late 1800s to the late 1900s.
Machida, Isao, Matsumoto, Shinji, Isao MACHIDA, Shinji MATSUMOTO   +3 more
core   +1 more source

Quantifying Deep Groundwater Contributions to Streamflow With Inequality‐Constrained EEMMA From Sparse Isotope Series in Alpine Permafrost Basins

Earth's Future, Volume 14, Issue 9, September 2026.
Abstract In alpine permafrost basins, dry‐season runoff largely depends on subpermafrost groundwater (BPG, deep groundwater), yet cryohydrogeological conditions are complicated by time‐varying hydrothermal regimes. Combined with the storage and regulation effects of permafrost on runoff, hydrograph‐based estimates of the fractional contribution of BPG ...
Fa Du, Zongxing Li, Juan Gui, James W. Kirchner, Jian Xue, Ahui Zhang   +5 more
wiley   +1 more source

Permeability, Pore Throat Size, Meteoric Influx, and Biomass Control the Depth‐Distribution of Microbial Biosignatures in Sedimentary Basin Fluids

AGU Advances, Volume 7, Issue 6, September 2026.
Abstract The few studies of modern or ancient subsurface microbial communities beyond ∼100 m depth limit our view into the vast and complex deep terrestrial biosphere. In sedimentary systems, growing isotopic and molecular data sets of fluids, co‐produced with hydrocarbons, provide an unprecedented opportunity to evaluate the depth‐distribution of ...
Jennifer McIntosh, Henrik Drake, Ji‐Hyun Kim, Anna Martini, Magdalena Osburn, Meera Shah, Bradley Stevenson, Grant Ferguson   +7 more
wiley   +1 more source