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Patterns of the entire range of REE in crude oils and coexisting water, collected from mud volcanoes in Xinjiang Province of China, are reported here for the first time. Crude oils show light REE enri...
Many studies in the past decade have sought to explore the origin and evolution of water in planetary bodies based on the hydrogen isotopic compositions of apatite. However, no investigation has stud...
The formation of lake terrace and salar-type lake-bed borate deposit at Nie`er Co Lake (hereafter Nie`er Co), northwestern Tibet, remain debated. We performed a detailed study of the hydrogeochemistr...
Determination of isotopic composition of extraterrestrial liquid water provides important information regarding the origin of water on Earth and the terrestrial planets. Fluid inclusions in halite of...
Water–rock interaction processes and trace elements distribution were studied in the Triassic dolomite aquifers of Sassolungo and Sella group (Dolomite mountains, northern Italy). These systems consi...
δD and δ18O of natural waters with δ18O ranging from –24 to –6‰ were measured using a cavity ring-down spectroscopy (CRDS) in order to confirm that the CRDS method can be an alternative to convention...
Chemistry of surface waters from the Tateyama caldera known as a site of frequent landslides in northern central Japan was investigated to obtain the relationship between their geochemical characteri...
Hydrogen and oxygen isotopic analysis using an off-axis integrated-cavity output spectroscopy (OA-ICOS) was carefully checked for long-term stabilities, dependence on the injected water volume, inter...
Caprock integrity is an important subject, as it is closely related to the leakage of injected CO2 into geological formations. Thus, it is necessary to evaluate how injected CO2 affects caprocks duri...
This study investigated arsenic (As) concentrations in existing drinking water sources in Hanam province, Vietnam. Sand-filtered groundwater, piped water, raw groundwater, and a type of drinking wate...
Oxygen-18 (18O), deuterium (D), and chemical patterns were determined in pore water samples extracted from 100-m depth in Caofeidian Harbor, China. The stable isotopic composition indicates that aqui...
To simulate the discharge zone of hydrothermal systems in the laboratory, we developed a flow-type hydrothermal apparatus that can reproduce water–rock reactions at elevated temperatures and pressure...
We present our April to December 2011 observations of 134Cs and 137Cs activities in surface water at Hasaki, a coastal station 180 km south of the Fukushima Dai-ichi Nuclear Power Plant (FNPP1) accid...
We present carbon- and oxygen-isotope compositions in a shell (δ13CS and δ18OS, respectively) of a modern brachiopod Campagea japonica collected at a water depth of 606 m off Aguni-jima, Central Ryuk...
The Terme Sibarite and nearby thermomineral water discharges have Ca–SO4 to Ca–SO4–HCO3 composition, near neutral pH value of 6.9 to 7.6, outlet temperatures of 16° to 25.5°C, variable redox potentia...

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