Marine Isotope Stratigraphy
Marine isotope stratigraphy is the application of proxies of seawater isotopic composition, as preserved in marine sediments and sedimentary rocks, for correlation and dating purposes.
Chemical stratigraphy, or chemostratigraphy, is the application of chemical signatures preserved in sediments and sedimentary rocks for the purpose of correlation, dating, or interpreting past environments and environmental change (Weissert et al. 2008; Halverson et al. 2010). Marine isotope stratigraphy is the most important subdivision of chemostratigraphy and encapsulates diverse stable and radiogenic isotope systems that have been applied to studies of marine strata spanning from Archean to Recent in age. The list of isotope systems that have been investigated is large and growing, spurred in part by significant recent developments in gas source (IRMS) and multi-collector inductively coupled plasma (MC-ICP-MS) mass spectrometry (see also entry on Mass Spectrometry). However,...
KeywordsOxygen Isotope Dissolve Inorganic Carbon Sulfur Isotope Benthic Foraminifera Isotope System
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