Assessing the biomineralization processes in the shell layers of modern brachiopods from oxygen isotopic composition and elemental ratios: Implications for their use as paleoenvironmental proxies
Sign Up to like & getrecommendations! Published in 2019 at "Chemical Geology"
DOI: 10.1016/j.chemgeo.2019.05.031
Abstract: Abstract Fossil brachiopod shells are often used as valuable archives to reconstruct paleoenvironmental conditions in deep time. However, biomineralization processes can impact their fidelity as geochemical proxies. Brachiopod shells comprise an outer primary layer, a… read more here.
Keywords: shell; oxygen isotopic; biomineralization processes; layer ... See more keywords
Fluid evolution in CM carbonaceous chondrites tracked through the oxygen isotopic compositions of carbonates
Sign Up to like & getrecommendations! Published in 2017 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2017.01.048
Abstract: The oxygen isotopic compositions of calcite grains in four CM carbonaceous chondrites have been determined by NanoSIMS, and results reveal that aqueous solutions evolved in a similar manner between parent body regions with different intensities… read more here.
Keywords: oxygen; evolution; oxygen isotopic; isotopic compositions ... See more keywords
Origin of low oxygen isotopic compositions in alkalic lavas from Erebus volcano, Antarctica
Sign Up to like & getrecommendations! Published in 2021 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2021.06.008
Abstract: Abstract Mount Erebus on Ross Island, Antarctica is an active volcano that has hosted a persistent phonolite lava lake for over 50 years. Oxygen isotope analysis of minerals in alkaline basanite to phonolite lavas from… read more here.
Keywords: erebus volcano; lavas erebus; oxygen isotopic; isotopic ... See more keywords
Oxygen isotopes in HED meteorites and their constraints on parent asteroids
Sign Up to like & getrecommendations! Published in 2019 at "Planetary and Space Science"
DOI: 10.1016/j.pss.2019.02.007
Abstract: Abstract The howardite, eucrite and diogenite (HED) clan of meteorites are usually regarded as Vesta meteorites, but there is still serious controversy over whether Vesta is the only parent body for HEDs. Different numbers of… read more here.
Keywords: parent; oxygen isotopic; oxygen isotopes; hed meteorites ... See more keywords
Oxygen Isotopic Composition of U3O8 Synthesized From U Metal, Uranyl Nitrate Hydrate, and UO3 as a Signature for Nuclear Forensics
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.1c07042
Abstract: Triuranium octoxide (U3O8) is one of the main compounds in the nuclear fuel cycle. As such, identifying its processing parameters that control the oxygen isotopic composition could be developed as a new signature for nuclear… read more here.
Keywords: isotopic composition; composition; oxygen; oxygen isotopic ... See more keywords
Oxygen Isotopic Signatures of Major Climate Modes and Implications for Detectability in Speleothems
Sign Up to like & getrecommendations! Published in 2021 at "Geophysical Research Letters"
DOI: 10.1029/2020gl089515
Abstract: Natural and social systems worldwide are impacted by climate modes such as the El Niño/Southern Oscillation (ENSO), Pacific Decadal Oscillation (PDO) and Atlantic Multidecadal Oscillation (AMO), making it imperative to understand their sensitivity to climate… read more here.
Keywords: signatures major; climate modes; oxygen isotopic; isotopic signatures ... See more keywords
Factors controlling the oxygen isotopic composition of lacustrine authigenic carbonates in Western China: implications for paleoclimate reconstructions
Sign Up to like & getrecommendations! Published in 2020 at "Scientific Reports"
DOI: 10.1038/s41598-020-73422-4
Abstract: In the carbonate-water system, at equilibrium, the oxygen isotopic composition of carbonate is dependent not only on the temperature but also on the isotopic composition of host water in which the carbonate is formed. In… read more here.
Keywords: water; oxygen isotopic; composition; isotopic composition ... See more keywords
Accurate in situ oxygen isotopic analysis at high resolution by secondary ion mass spectrometry shows the potential of aragonite as a reference material
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Analytical Atomic Spectrometry"
DOI: 10.1039/d1ja00072a
Abstract: Oxygen isotopic analysis of aragonite by secondary ion mass spectrometry (SIMS) is of significance to reveal the high spatial resolution information correlated with microstructure which could not be achieved by conventional methods. Appropriate reference materials… read more here.
Keywords: spectrometry; oxygen isotopic; mass; oxygen ... See more keywords
Oxygen isotopic heterogeneity in the early Solar System inherited from the protosolar molecular cloud
Sign Up to like & getrecommendations! Published in 2020 at "Science Advances"
DOI: 10.1126/sciadv.aay2724
Abstract: Heritage of oxygen isotopic heterogeneity of CO, H2O, and silicates in the early Solar System from the protosolar molecular cloud. The Sun is 16O-enriched (Δ17O = −28.4 ± 3.6‰) relative to the terrestrial planets, asteroids,… read more here.
Keywords: isotopic heterogeneity; oxygen isotopic; system; solar system ... See more keywords