Results 41 to 50 of about 563 (136)

Origin and residence time of groundwater based on stable and radioactive isotopes in the Heihe River Basin, northwestern China

Journal of Hydrology: Regional Studies, 2018
Study region: The Heihe River Basin (HRB) is one of several arid basins in which runoff from the Qilian Mountain recharges basin aquifers. Study focus: A basin-wide dataset (δ18O, D, 3H and 14C) is used to determine the present and past relationships ...
L.J. Zhao, C.J. Eastoe, X.H. Liu, L.X. Wang, N.L. Wang, C. Xie, Y.X. Song   +6 more
doaj   +1 more source

Weather Regimes Preclude the Observation of a Southern Annular Mode Signal in Two Coastal East Antarctic Ice Cores

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 10, 28 May 2026.
Abstract The Southern Annular Mode (SAM) represents the dominant pattern of climate variability in the extratropical Southern Hemisphere. However, its signature in coastal East Antarctic ice core records is unclear. A daily synoptic typing data set for the southern Indian Ocean constructed using self‐organizing maps on 500 hPa daily geopotential height
Danielle Udy, Sarah Jackson, Tessa R. Vance, Benjamin Pohl, Anthony S. Kiem, Neil J. Holbrook, Chris Plummer, Jonathan D. Wille, Vincent Favier, Camilla Crockart, Margaret Harlan, Nerilie Abram, Chelsea A. Long, Meredith Nation, Poul Christoffersen, Matt King   +15 more
wiley   +1 more source

Isotopic composition of snow and ice on the glaciers of Novaya Zemlya

Лëд и снег, 2017
In 2015–2016 during the research expeditions of Institute of Oceanology, Russian Academy of Sciences the study of stable water isotopes (18O and D) was conducted on glaciers of Novaya Zemlya.
V. N. Mikhalenko, S. S. Kutuzov, A. A. Ekaykin, A. A. Lavrantiev, A. V. Kozachek, R. A. Chernov   +5 more
doaj   +1 more source

Origins of the Pangkaimen Au Deposit in the Northern Great Xing'an Range, China: Evidence From Geochronological, Geochemical, Fluid Inclusion, and H–O–S–Pb Isotope Data

Geological Journal, Volume 61, Issue 5, Page 1291-1309, May 2026.
The Pangkaimen Au–Ag deposits belong to the epithermal Au deposits, which are of great significance for guiding the research and development of this type of gold deposit. Metallogenic model diagram of Pangkaimen Au–Ag deposit. ABSTRACT The gold (Au) metallogenic belt in the northern Great Xing'an Range is characterised by the wide occurrence of the ...
Sheng Lu, Hongpeng Chen, Chenglu Li, Ye Wang, Tiesheng Li, Rigen Wu, Zengtao Li, Zhichao Song, Xiannan Zhu   +8 more
wiley   +1 more source

Separating Source and Precipitation Effects on Cloud and Rain Pollution Concentrations on Mount Washington, NH

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract Precipitation processes are critical for removing pollutants from the atmosphere, yet in many mid‐latitude continental regions, the effects of rainout are difficult to distinguish from the broader influence of atmospheric transport. In this study, we analyze 582 cloud and rain samples collected during summers 1996–2014 from Mount Washington ...
Lauren Richards, Adriana Bailey, Georgia Murray, Eric Kelsey   +3 more
wiley   +1 more source

Springtime Formation of Laminated Soil Carbonate Rinds and Changes in Fluvial Terrace Soils on Orbital Timescales at Rio Mesa, Utah, USA

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, Thure E. Cerling, David W. Marchetti, Amy L. Ellwein, Shannon Mahan, David R. Bowling, Benjamin H. Passey, Victor J. Polyak, Yemane Asmerom   +8 more
wiley   +1 more source

Ryugu reference project: Recommendations from the measurement definition team

Meteoritics &Planetary Science, Volume 61, Issue 5, Page 819-848, May 2026.
Abstract Sample return missions play a significant role in planetary science by providing pristine extraterrestrial materials. JAXA's Hayabusa2 and NASA's OSIRIS‐REx missions have returned samples from the C‐type asteroids Ryugu and Bennu, respectively. The chemical and mineralogical compositions of these samples closely resemble those of CI chondrites,
Tetsuya Yokoyama, Guillaume Avice, Henner Busemann, Nicolas Dauphas, Daniel P. Glavin, Ashley J. King, Thorsten Kleine, Katharina Lodders, Frederic Moynier, Maria Schönbächler, Yoshinori Takano, Kun Wang, Hikaru Yabuta, Yuma Enokido, Ryota Fukai, Shogo Tachibana, Tomohiro Usui   +16 more
wiley   +1 more source

Comparison between total least squares and ordinary least squares in obtaining the linear relationship between stable water isotopes

Geoscience Letters, 2022
The linear relationship between two stable water isotopes (δD and δ18O) has been used to examine the physical processes and movements or changes of three water phases (water vapor, liquid water and ice), including deuterium excess.
Jeonghoon Lee, Won Sang Lee, Hyejung Jung, Seung-Gu Lee   +3 more
doaj   +1 more source

Fluorination of Silver Phosphate in Nickel Reaction Vessels for Triple Oxygen Isotope Analysis

Rapid Communications in Mass Spectrometry, Volume 40, Issue 7, 15 April 2026.
ABSTRACT Rationale Increasingly, more laboratories are measuring the triple oxygen isotope values of phosphate. Standardization is key to having good interlaboratory results. Here, we present the triple oxygen isotope values of a suite of standards using fluorination and compare them with previously reported triple oxygen isotope values. Methods Silver
Jordan A. G. Wostbrock, Drake Yarian, Isabella Chiaravalloti, Spencer R. Moller, Ruth E. Blake   +4 more
wiley   +1 more source

Cryostratigraphy of Rhythmic Segregated Ice in Colluvium and Implications for Permafrost Slope Stability

Permafrost and Periglacial Processes, Volume 37, Issue 2, Page 227-239, April/June 2026.
ABSTRACT The amount and stratigraphic setting of ground ice in permafrost slopes is a key control on the style and magnitude of permafrost mass wasting. Understanding the spatial and stratigraphic variations in ground ice distribution on permafrost slopes is therefore a fundamental property in assessing the stability of permafrost hillslopes.
Joseph M. Young, Alejandro Alvarez, Duane Froese   +2 more
wiley   +1 more source