Convener: Jan Backman This email address is being protected from spambots. You need JavaScript enabled to view it.
Co-Conveners: Jan Backman, Ursula Roehl, Thomas Westerhold
Marine cores from International Ocean Discovery Program (IODP) and its antecedent programs provide sediment archives in which the biostratigraphies of marine microfossils (nannofossils, foraminifera, radiolaria, diatoms) have resulted in reliable 'bio-horizons' (biostratigraphic datums), often correlatable across wide distances. Where dating tools such as cyclostratigraphy and magnetostratigraphy are available, microfossil biohorizons are used as control points for the identification of cycle numbers and polarity zones. Their biochronology provides a basis for age models, that (can) develop into orbitally tuned cyclostratigraphies, or are used for chronological revision of polarity time-scales. This session invites contributions that report on progress in the improvement of biochronologic data (obtained in deep sea sediments from IODP), and on the relation between biochronology and Time Scale development.