Results 31 to 40 of about 4,709 (174)

Stable isotopes and hydrogeochemical evolutions of groundwater from a typical seismic fault zone in the Mt. Lushan region, Eastern China

open access: yesFrontiers in Earth Science, 2023
We analyzed the major chemical components, hydrogen (δD) and oxygen isotopes (δ18O), and tritium activity in groundwater from Jiujiang well number 2 (JJ2) as well as atmospheric precipitation and water from the Maweishui spring and Tianhuajing reservoir ...
Zhicheng Bao   +5 more
doaj   +1 more source

Coupled measurements of δ18O and δD of hydration water and salinity of fluid inclusions in gypsum from the Messinian Yesares Member, Sorbas Basin (SE Spain) [PDF]

open access: yes, 2017
Financial support was provided by Clare College Geological Research Fund to N.P. Evans. The research leading to these results has received funding from the European Research Council under the European Union's Seventh Framework Programme (FP/2007–2013 ...
Bontognali, Tomaso R.R.   +5 more
core   +1 more source

Rainfall variations in central Indo-Pacific over the past 2,700 y [PDF]

open access: yes, 2019
Tropical rainfall variability is closely linked to meridional shifts of the Intertropical Convergence Zone (ITCZ) and zonal movements of the Walker circulation.
Breitenbach, Sebastian   +18 more
core   +1 more source

Spatiotemporal variability of hydrogen and oxygen stable isotopes in the Han River Basin and the regional hydrological implication

open access: yesFrontiers in Earth Science
Characterization of the spatiotemporal variability of stable isotopes (δ18O and δD) in the surface water of the Han River Basin (HRB) is critical for tracing basin-scale hydrological cycle processes, identifying moisture-source dynamics, and optimizing ...
Na Wu   +7 more
doaj   +1 more source

Underlying Climate Controls in Triple Oxygen (16 O, 17 O, 18 O) and Hydrogen (1 H, 2 H) Isotopes Composition of Rainfall (Central Pyrenees)

open access: yesFrontiers in Earth Science, 2021
Studies of rainfall isotopic composition in the Iberian Peninsula are scarce, and to date, none of them have provided analyses of the triple oxygen isotopes, preventing from the complete understanding of current atmospheric processes in this region.
Reyes Giménez   +6 more
doaj   +1 more source

Western Mediterranean climate and environment since Marine Isotope Stage 3: a 50,000-year record from Lake Banyoles, Spain [PDF]

open access: yes, 2015
We present new stable isotope (δ¹⁸Ocalcite and δ¹³ Ccalcite) and diatom data from a 67-m sediment core (BAN II) from Lake Banyoles, northeastern Spain.
Hoebig, Nicole   +7 more
core   +2 more sources

Isotopic Evidence for Lateral Flow and Diffusive Transport, but Not Sublimation, in a Sloped Seasonal Snowpack, Idaho, USA [PDF]

open access: yes, 2016
Oxygen and hydrogen isotopes in snow were measured in weekly profiles during the growth and decline of a sloped subalpine snowpack, southern Idaho, 2011–2012.
Evans, Samantha L.   +5 more
core   +1 more source

Geochemical characteristics and genesis of coalbed methane in Baode area on the eastern margin of Ordos Basin [PDF]

open access: yesE3S Web of Conferences, 2020
The degree of coalbed methane exploration and development now in Baode area is relatively low. The lack of systematic understanding of the formation of coalbed methane in this area restricts the further exploration and development of coalbed methane ...
Hu Weiqiang   +12 more
doaj   +1 more source

Applying rare earth elements, Uranium, and 87Sr/86Sr to disentangle structurally forced confluence of regional groundwater resources: The case of the Lower Yarmouk Gorge [PDF]

open access: yes, 2019
The conjoint discussion of tectonic features, correlations of element concentrations, δ18O, δD, and 87Sr/86Sr of groundwater leads to new insight into sources of groundwater, their flow patterns, and salinization in the Yarmouk Basin.
Al-Raggad, Marwan   +6 more
core   +1 more source

Tracing isotopic signatures (δD and δ18O) in precipitation and glacier melt over Chorabari Glacier–Hydroclimatic inferences for the Upper Ganga Basin (UGB), Garhwal Himalaya

open access: yesJournal of Hydrology: Regional Studies, 2018
Study region: Chorabari Glacier in Upper Ganga Basin, Garhwal Himalaya. Study focus: Authors attempt to characterize the isotopic signatures in different components of the hydrological cycle and decipher the role of summer and winter precipitation on ...
Amit Kumar   +3 more
doaj   +1 more source

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