Results 21 to 30 of about 6,861 (219)

Seasonal and spatial variability in δ18O and δD values in waters of the Godavari River basin: Insights into hydrological processes

open access: yesJournal of Hydrology: Regional Studies, 2020
Study region: The Godavari River is the largest non-Himalayan, monsoon-fed river in India, providing water resources for ∼75 million people. Study focus: Stable isotopes of Godavari River water in a pre-monsoon (dry) and monsoon (wet) season are used to ...
Frédérique M.S.A. Kirkels   +4 more
doaj   +1 more source

Ice Cores from the St. Elias Mountains, Yukon, Canada: Their Significance for Climate, Atmospheric Composition and Volcanism in the North Pacific Region [PDF]

open access: yes, 2014
A major achievement in research supported by the Kluane Lake Research Station was the recovery, in 2001 –02, of a suite of cores from the icefields of the central St.
Bourgeois, Jocelyne   +12 more
core   +4 more sources

Inter-Laboratory Comparison of Analysis for Hydrogen and Oxygen Stable Isotope Ratios in Water Samples by Laser Absorption Spectroscopy

open access: yesYankuang ceshi, 2017
Laser Absorption Spectroscopy technology is a convenient and rapid method for the simultaneous determination of hydrogen and oxygen isotope ratios in environmental water samples.
LAN Gao-yong   +5 more
doaj   +1 more source

The preservation of atmospheric nitrate in snow at Summit, Greenland [PDF]

open access: yes, 2013
There is great interest in using nitrate NO3 isotopic composition in ice cores to track the history of precursor nitrogen oxides (NOx = NO + NO2) in the atmosphere.
Dibb, Jack E.   +3 more
core   +2 more sources

Determination of the origin and recharge process of water resources in Salda Lake Basin by using the environmental, tritium and radiocarbon isotopes (Burdur/Turkey)

open access: yesBulletin of the Mineral Research and Exploration, 2020
The Salda Lake basin which is in the southwestern Turkey is an important water body in view of environmental values. We used stable isotopes (δD and δ18O), δ3H and 14C composition of the water samples to understand recharge process effective in the ...
Simge VAROL   +6 more
doaj   +1 more source

Constraining Holocene hydrological changes in the Carpathian–Balkan region using speleothem δ18O and pollen-based temperature reconstructions [PDF]

open access: yes, 2014
Here we present a speleothem isotope record (POM2) from Ascunsă Cave (Romania) that provides new data on past climate changes in the Carpathian–Balkan region from 8.2 ka until the present.
Dragusin, Virgil   +5 more
core   +1 more source

The main controls of the precipitation stable isotopes at Kathmandu, Nepal

open access: yesTellus: Series B, Chemical and Physical Meteorology, 2020
Precipitation stable isotopes (2H and 18O) are adequately understood on their climate controls in the Tibetan Plateau, especially the north of Himalayas via about 30 years’ studies. However, knowledge of controls on precipitation stable isotopes in Nepal
Niranjan Adhikari   +4 more
doaj   +1 more source

Potential and limits of stable isotopes (δ18O and δD) to detect parasitic water in sewers of oceanic climate cities

open access: yesJournal of Hydrology: Regional Studies, 2018
Study region: Brussels (Belgium) and Nantes (France), two cities located in oceanic settings. Study focus: The article assesses the capabilities of detecting the presence of groundwater in sewers and waste-water in storm sewers (also called parasitic ...
K. De Bondt   +5 more
doaj   +1 more source

Distribution of the stable isotopes (δ18O, δD и δ13C) in natural waters of the Baydar valley (Crimean Peninsula) [PDF]

open access: yesE3S Web of Conferences, 2019
Results of the study of the stable isotopes (δ18O, δD and δ13C) distribution in natural waters of the Baydar valley (southwestern part of the Crimean Peninsula) are presented.
Novikov Dmitry A.   +6 more
doaj   +1 more source

Do fluid inclusions preserve δ18O values of hydrothermal fluids in epithermal systems over geological time? : evidence from paleo- and modern geothermal systems, Milos island, Aegean Sea [PDF]

open access: yes, 2003
Stable isotope compositions of quartz (δ18Oquartz) and fluid inclusion waters (δ18OFI and δDFI) were analysed from Profitis Ilias, a low-sulphidation epithermal gold mineralisation deposit on Milos island Greece, to establish if δ18OFI preserve a record ...
Cheliotis, I.   +4 more
core   +1 more source

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