Reconstructing ancient environments and climates requires the collection of bioindicators, known as "proxies":
pollen, spores, microalgae, microcharcoal and arthropod remains contained in sediments deposited over time and in bioarchaeological material (coprolites, wreck caulking resins, etc).
Ma mission principale consiste à extraire les restes végétaux et animaux en les séparant des fractions minérale et organique constituant le sédiment, à partir notamment de carottes prélevées sur le terrain, principalement bassin méditerranéen, Alpes, Asie centrale, Iran.
The frequencies of each taxon as a function of depth will make it possible to infer past environment, landscape and climate.