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  Information - SSP10 Raiding the Palaeozoic/Mesozoic sedimentary archive: investigating environmental change with multiple proxies (co-sponsored by IAS; co-listed in CL)

Event Information
Aim: To bring together palaeontologists, sedimentologists, stratigraphers, organic and inorganic geochemists and palaeoceanographers to demonstrate how multiple palaeoenvironmental proxies can be applied to Palaeozoic and Mesozoic sedimentary successions to better understand and model major shifts and perturbations in the Earth System, including oceanic anoxic events, extinction events, and climate change.

Background: Over the last two decades, the combination of carbon and oxygen stable isotope records with palaeontological and sedimentological proxies has proven to be a powerful tool in advancing our understanding of palaeoclimate and other palaeoenvironmental change through the Palaeozoic Mesozoic. Strontium isotopes have provided a new stratigraphic tool and have improved our knowledge of variations in the continental weathering flux. Nonetheless, most records of Palaeozoic Mesozoic environmental change remain largely qualitative. However, considerable scope now exists for improved quantification and modelling by employing a multi-proxy approach that incorporates newly developed methods, such as:

Elemental chemistry: productivity proxies using P, Ba, and Cd/Ca ratios; improved palaeotemperature, palaeoclimate and sea-level change records employing Sr, Mn, Mg/Ca and Sr/Ca ratios.

Novel isotope systems: B, Ca, Ge, Li, Mg, Os and Si isotopes to assess variables including palaeoclimate, palaeo-pH, and hydrothermal versus continental weathering fluxes. Nd isotopes to trace ancient water masses.

Organic geochemical proxies: Applications of the TEX86 palaeotemperature proxy. Carbon and N isotope studies of biomarkers to devolve terrestrial and marine records of carbon cycle perturbations. Biomarker distributions in deep ocean sediments as indicators of photic zone anoxia.

Preliminary List of Solicited Speakers

IAS The International Association of Sedimentologists

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The information contained hereafter has been compiled and uploaded by the Session Organizers via the "Organizer Session Form". The Session Organizers have therefore the sole responsibility that this information is true and accurate at the date of publication, and the conference organizer cannot accept any legal responsibility for any errors or omissions that may be made, and he makes no warranty, expressed or implied, with regard to the material published.

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