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2015
ACL
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V.Mavromatis, V.Montouillout, J.Noireaux, J.Gaillardet, J.Schott, 'Characterization of boron incorporation and speciation in calcite and aragonite from co-precipitation experiments under controlled pH, temperature and precipitation rate', Geochim. Cosmochim. Acta 150 299 - 313 (2015) doi:10.1016/j.gca.2014.10.024
About 20 years ago the boron isotopic composition of marine carbonates has been proposed as a proxy of ancient seawater pH. Since that time, a large body of studies used boron isotopes in carbonates to reconstruct seawater paleo-pH and atmospheric paleo- CO2 concentration. To date however, no systematic investigation of the physicochemical parameters that control boron incorporation in calcite and aragonite (pH, temperature, precipitation rate, etc.) has been performed. To fill this gap, we have performed precipitation kinetic experiments of calcite and aragonite at 5 and 25oC in the presence and absence of seed crystals and for the overall pH range 7.4
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