Decoupled Hf and Nd isotopes in suspended particles and in the dissolved load of Late Archean seawater
Sign Up to like & getrecommendations! Published in 2018 at "Chemical Geology"
DOI: 10.1016/j.chemgeo.2018.01.017
Abstract: Abstract It is generally agreed that decoupling of the Hf and Nd isotope systems in modern aqueous systems is a result of incongruent release of Hf during terrestrial weathering of the continental crust, although the… read more here.
Keywords: seawater; isotope; decoupled isotopes; archean seawater ... See more keywords
>2.7 Ga metamorphic peridotites from southeast Greenland record the oxygen isotope composition of Archean seawater
Sign Up to like & getrecommendations! Published in 2020 at "Earth and Planetary Science Letters"
DOI: 10.1016/j.epsl.2020.116331
Abstract: Abstract The δ 18 O value of seawater is presently buffered by high-temperature hydrothermal alteration and low-temperature weathering of lithospheric rocks. It is much debated whether the δ 18 O of seawater has been buffered… read more here.
Keywords: seawater; oxygen isotope; value; archean seawater ... See more keywords
Ferric iron triggers greenalite formation in simulated Archean seawater
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DOI: 10.1130/g48495.1
Abstract: Sedimentary rock deposits provide the best records of (bio)geochemical cycles in the ancient ocean. Studies of these sedimentary archives show that greenalite, an Fe(II) silicate with low levels of Fe(III), was an early chemical precipitate… read more here.
Keywords: silicate; archean seawater; formation; simulated archean ... See more keywords