Session: Benchmarking & cross-cutting Group 1 (Isotope modelling, COMPARE)
Author: Aradhna Tripati / email@example.com / UCLA
The emergence of novel proxies enables us to develop new types of observational benchmarks and address fundamental questions about Earth’s climate evolution. This presentation will discuss applications of a geothermometer that is based on the abundance of 13C-18O bonds in carbonates. We will present examples of how we are using this approach to study ocean and terrestrial temperatures and water 18O/16O ratios over timescales ranging from the Last Glacial Maximum to the early Cenozoic. We will show how we are using this approach to identify possible biases in existing reconstructions from other proxies, such as those arising from diagenesis, or from seawater Mg/Ca ratios. Finally, we will describe how we are comparing paleoclimate reconstructions using this method with results from PMIP simulations in order to probe paleoclimate dynamics.