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Preservation and alteration of inclusion-based calcite-water oxygen isotope and clumped isotope temperature signals in calcite veins [PDF]
Scientific ReportsKnowledge of the formation temperatures of geological deposits is essential for investigating their genesis. Oxygen isotope thermometry (OIT), using the temperature dependence of oxygen isotope fractionation between host carbonate mineral and mineral ...
Attila Demény +3 more
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Oxygen Isotope Fractionation between Carbonate Minerals and Carbonic Acid Systems and Constraints for Environmental Science and Geological Processes [PDF]
MoleculesThe equilibrium oxygen isotope fractionation factor is widely used in geological thermometry. However, under most natural conditions, the oxygen isotope exchange is rare to reach equilibrium. Especially for the complex water–rock interaction process, the
Jixi Zhang
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New Olivine Reference Materials for Secondary Ion Mass Spectrometry Oxygen Isotope Measurements
Crystals, 2023 To accurately analyze the oxygen isotope of olivine using secondary ion mass spectrometry (SIMS), appropriate standard materials are required to calibrate for matrix effects caused by chemical composition differences between the samples and the standard ...
Bijie Peng +3 more
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Geochemistry, Geophysics, Geosystems, 2021 Oxygen isotope ratios in bivalve shells have long been used as a proxy for environmental change, reflecting both temperature and the oxygen isotope composition of host water. In estuarine systems, the oxygen isotope composition of water is complicated by
B. K. Chamberlayne +2 more
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Constraining the rise of oxygen with oxygen isotopes [PDF]
Nature Communications, 2019 AbstractAfter permanent atmospheric oxygenation, anomalous sulfur isotope compositions were lost from sedimentary rocks, demonstrating that atmospheric chemistry ceded its control of Earth’s surficial sulfur cycle to weathering. However, mixed signals of anoxia and oxygenation in the sulfur isotope record between 2.5 to 2.3 billion years (Ga) ago ...
Killingsworth, Bryan A. +5 more
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Journal of Isotopes, 2023 In this study, nitrate in standard samples, seawater and lake water and tap water samples were converted to N2O using bacterial denitrification and chemical conversion, the nitrogen and oxygen isotope composition were determined by Isotope Ratio Mass ...
YIN Xijie;YANG Haili;CUI Kunlei;SUN Zhilei;LI Yunhai
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Applied Sciences, 2023 The oxygen isotope ratios of minerals are important for estimating the formation temperature of hydrothermal deposits. Calcite is generally found in most mining districts.
Yuichi Morishita
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Oxygen isotope fractionation during N2O production by soil denitrification [PDF]
Biogeosciences, 2016 The isotopic composition of soil-derived N2O can help differentiate between N2O production pathways and estimate the fraction of N2O reduced to N2. Until now, δ18O of N2O has been rarely used in the interpretation of N2O isotopic signatures because of ...
D. Lewicka-Szczebak +5 more
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Beryl Reference Materials for In Situ Oxygen Isotope Determination
Crystals, 2021 The mineral beryl (Be3Al2(SiO3)6) has the most abundant phase with industrial value for extracting a critical metal—beryllium. Due to multi-stage, fluid-induced growth, individual beryl grains may yield complex geochemical records, revealing variations ...
Xiaoxiao Ling +12 more
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Data in Brief, 2021 Here we present derived thermal-hydrological variations data during the Marine isotope stages (MISs) 10–12 using surface and subsurface dwelling planktonic foraminiferal geochemical proxies of a sedimentary core of MD05-2925 (9.3oS, 151.5oE, water depth ...
Li Lo +5 more
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