The biogeochemical cycling of metals in natural systems is often accompanied by stable
isotope fractionation which can now be measured due to recent analytical advances. In …

Water plays a critical role in erosion and sediment transport and this relationship is most
evident in the hyperarid Atacama Desert of Northern Chile, a region characterized by …

Shallow-water carbonate sediments constitute the bulk of sedimentary carbonates in the
geologic record and are widely used archives of Earth's chemical and climatic history. One …

Shallow-water carbonate sediments constitute one of the most abundant and widely used
archives of Earth's surface evolution. One of the main limitations of this archive is the …

A surface reaction kinetic model is developed for predicting Ca isotope fractionation and
metal/Ca ratios of calcite as a function of rate of precipitation from aqueous solution. The …

Abstract The Ediacaran Shuram carbon isotope excursion (CIE) follows the regional
Gaskiers glaciation and occurs before the appearance of macroscopic animal fossils …

At the Earth's surface, calcium (Ca) is a critical element at a variety of scales: it is soluble in
natural waters, a biological nutrient, and a major constituent of the dominant mineral sink for …

Abstract Knowledge of the lithium (Li) isotope fractionation factor during clay mineral
formation is a key parameter for Earth system models. This study refines our understanding …

Calcite growth experiments have been performed in the presence of aqueous Mg at 25° C
and 1bar pCO2 to quantify magnesium partition coefficient DMg=(Mg/Ca) solid (Mg/Ca) fluid …

Abstract The Ca, Mg, O, and C isotopic and trace elemental compositions of marine
limestones and dolostones from ODP Site 1196A, which range in depth (∼ 58 to 627 mbsf) …