Calcium carbonate (CaCO3) biomineralizing organisms have played major roles in the
history of life and the global carbon cycle during the past 541 Ma. Both marine diversification …

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 …

The nine editions of Stable Isotope Geochemistry have appeared over a time span of nearly
50 years. The first edition (1973) appeared as a slim book of 135 pages. Due to the rapid …

Ca isotope fractionation during inorganic calcite formation was experimentally studied by
spontaneous precipitation at various precipitation rates (1.8< logR< 4.4 μmol/m2/h) and …

Coccoliths are calcitic particles produced inside the cells of unicellular marine algae known
as coccolithophores. They are abundant components of sea-floor carbonates, and the …

Calcium-isotope ratios (δ44/42Ca) were measured in carbonate-rich sedimentary sections
deposited during Oceanic Anoxic Events 1a (Early Aptian) and 2 (Cenomanian–Turonian) …

This survey of magnesium stable isotope compositions in marine biogenic aragonite and
calcite includes samples from corals, sclerosponges, benthic porcelaneous and planktonic …

A total of 280 brachiopods of Ordovician to Cretaceous age, complemented by published
data from belemnites and planktonic foraminifera, are used to reconstruct the evolution of …

The CO 2 concentration of air has increased over the last two centuries and recently
surpassed 400 ppm. Carbon cycle models project CO 2 concentrations of 720 to 1000 ppm …

Coccolithophores are major contributors to global marine planktonic calcification, and in
nature coccolithophores are invariably calcified through almost all of their life cycle. The …