The Ca and Mg isotope record of the Cryogenian Trezona carbon isotope excursion
The Ca and Mg isotope record of the Cryogenian Trezona carbon isotope excursion
The Trezona carbon isotope excursion is recorded on five different continents in platform carbonates deposited prior to the end-Cryogenian Marinoan glaciation (>635 Ma) and represents a change in carbon isotope values of 16-18 per mill. Based on the spatial and temporal reproducibility, the excursion previously has been interpreted as tracking …