Results 51 to 60 of about 4,709 (174)

Understanding the hydrogeology and surface flow in the Cuatrocienegas Basin (NE Mexico) using stable isotopes [PDF]

, 2015
In this paper we present surface water oxygen (δ18O), hydrogen (δD) and inorganic carbon (δ13CDIC) isotope data to gain a better understanding of the modern day hydrogeology of Cuatrociénegas Basin, a semi-arid region in northeastern Mexico.
Felstead, NJ, Gonzalez, S, Leng, MJ, Metcalfe, SE   +3 more
core   +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

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

Ice wedges as archives of winter palaeoclimate: a review [PDF]

, 2018
Ice wedges are a characteristic feature of northern permafrost landscapes and grow mainly by snowmelt that refreezes in thermal contraction cracks that open in winter.
Andreev, Ashastina, Baker, Biskaborn, Blaauw, Black, Blinov, Boereboom, Braconnot, Briner, Christiansen, Christiansen, Dansgaard, Elias, Ewing, Fortier, Freitag, Fritz, Froese, Gasanov, Gilichinsky, Kaufman, Kokelj, Konishchev, Konyakhin, Lacelle, Lachenbruch, Lachniet, Laepple, Lauriol, Liu, Mackay, Mackay, Mackay, Mackay, Mackay, Mackay, Mackay, Marcott, Matsuoka, McKay, Meyer, Meyer, Meyer, Meyer, Meyer, Michel, Michel, Murton, Münch, Münch, Nikolayev, O'Neill, Opel, Opel, Opel, PAGES2k Consortium, Porter, Schirrmeister, Sejrup, Sokratov, St-Jean, Steen-Larsen, Streletskaya, Streletskaya, Sundqvist, Vasil'chuk, Vasil'chuk, Vasil'chuk, Vasil'chuk, Vasil'chuk, Vasil'chuk, Wacker, Wang, Wanner, Werner, Werner, Wetterich, Wetterich, Wetterich, Yang, Yang   +81 more
core   +2 more sources

Long‐Term Storage of Meteoric Water in the Variscan Basement: Stable Isotope Constraints (δD–δ18O)

Terra Nova, Volume 38, Issue 2, Page 116-123, April 2026.
ABSTRACT F‐Ba‐Pb‐Zn (±Ag) deposits near the unconformity between the Armorican and Aquitaine basins formed by mixing surface waters and brines with fluid ascending from the basement. To better constrain the source of this fluid and the conditions of mixing, we analyzed the hydrogen (δDwater) and oxygen (δ18Owater) isotopic composition of water trapped ...
Loïc Bouat, Pierre Strzerzynski, Véronique Gardien   +2 more
wiley   +1 more source

Pacific Southwest United States Holocene Droughts and Pluvials Inferred From Sediment δ18O (calcite) and Grain Size Data (Lake Elsinore, California) [PDF]

, 2019
Records of past climate can inform us on the natural range and mechanisms of climate change. In the arid Pacific southwestern United States (PSW), which includes southern California, there exist a variety of Holocene records that can be used to infer ...
Anderson, Michael A., Avila, Judith, Kirby, Matthew E.C., Lachniet, Matthew, Nichols, Kevin, Noblet, James A., Patterson, William Paul   +6 more
core   +2 more sources

Three Centuries of ENSO Variability Inferred From Muna, Sulawesi, Indonesia Teak δ18O: Limited Response to Radiative Forcing

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract We present an annual resolution oxygen isotope anomaly (Δδ18 ${\Delta }{\delta }^{18}$Oc) record, derived from eight teak (Tectona grandis L.f.) tree ring‐dated δ18 ${\delta }^{18}$Oc series from Muna, Southeast Sulawesi, Indonesia (5.3° ${}^{\circ}$S, 123° ${}^{\circ}$E).
M. N. Evans, S. H. S. Herho, J. C. Wollney, A. N. Carter, M. A. Gbenro, G. R. Tripp, R. D. D’Arrigo, S. Y. Cahyarini   +7 more
wiley   +1 more source

New-on-line method for water isotope analysis of speleothem fluid inclusions using laser absorption spectroscopy (WS-CRDS) [PDF]

, 2014
A new online method to analyse water isotopes of speleothem fluid inclusions using a wavelength scanned cavity ring down spectroscopy (WS-CRDS) instrument is presented. This novel technique allows us simultaneously to measure hydrogen and oxygen isotopes
Affolter, S., Fleitmann, D., Leuenberger, M.   +2 more
core   +2 more sources

Holocene Hydroclimatic Variations Over Western and Central Asia as Inferred From Speleothem Isotope Evidence

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 5, 16 March 2026.
Abstract Recent studies have found a dipole pattern of hydroclimate variation in western Asia (WA) and arid central Asia (ACA) during the Holocene. However, speleothem δ18O evidence shows some inconsistencies with other lines of evidence, especially concerning the timing of peak wetness in WA and precipitation trends in ACA.
Liang Ning, Fangmiao Xing, Zhengyu Liu, Jian Liu, Yanmin Qin, Qin Wen, Michael E. Mann, Yan Yu, Yongjin Wang, Mi Yan, Huayu Lu, Naixin Cao, Kefan Chen, Weiyi Sun   +13 more
wiley   +1 more source

Applications of stable water and carbon isotopes in watershed research: Weathering, carbon cycling, and water balances [PDF]

, 2011
Research on rivers has traditionally involved concentration and flux measurements to better understand weathering, transport and cycling of materials from land to ocean.
Barth, J. A. C., Barth, Johannes A. C., Freitag, Heiko, Karim, Ajaz, Négrel, Philippe, Petelet Giraud, Emmanuelle, Probst, Anne, Probst, Jean-Luc, Schulte, Peter, Telmer, Kevin, Van Geldern, Robert, Veizer, Jan   +11 more
core   +3 more sources