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Sedimentary archives and paleoenvironments

Sedimentary archives

and paleoenvironments

The study of paleoenvironments and sedimentary archives allows for predicting future climate changes, assessing environmental risks, as well as making informed decisions for coastal zone management and marine environmental protection.

Studying past climatic conditions and the climate changes that have occurred until today is of crucial importance for predicting potential climate changes and extreme events that could threaten coastal areas. By analyzing sedimentary archives and paleoenvironments, we are able to explore past climatic variations.

The reconstruction of paleoclimates and paleoenvironments requires analysis andidentificationof various indicators.Among these, we examine pollens, which provide information about past vegetation and associated climatic conditions. Additionally, we study foraminifera, tiny marine organisms found in sediments, which offer insights into the characteristics of past oceans. Finally, we are interested in dinoflagellates, unicellular algae, whose presence in sediments reflects the state of ancient marine ecosystems.

Aside from the inherent value that intrinsic knowledge brings, the information extracted from sedimentary archives allows us to better understand past climate changes , assesscurrent environmental risks , and project future climate trends. Through these approaches, we are able to make more informed decisions regarding coastal zone management and marine environmental protection.


Associated publications

1. Gorczynska, Aneta & Stéphan, Pierre & Yvan, Pailler & Nicolas, Clément & Penaud, Aurélie & David, Ophélie & Vidal, Muriel & Le Gall, Bernard. (2023). Holocene evolution of coastal dunes in western France: Regional reconstruction from archaeological and historical data. Aeolian Research. Read the paper

2. Novico F., Menier D., Mathew M., Ramkumar M., Santosh M., Endyana C., Tri Dewi K., Kurniawan I., Lambert C., Goubert E., Hendarmawan, (2022). Impact of Late Quaternary climatic fluctuations on coastal systems: Evidence from high-resolution geophysical, sedimentological and geochronological data from the Java Island. Marine and Petroleum Geology, 105399. DOI : 10.1016/j.marpetgeo.2021. Read the paper

3. Lambert C., Penaud A., Poirier C., Goubert E., (2022). Distribution of modern dinocysts in surface sediments of southern Brittany (NW France) in relation to environmental parameters: Implications for paleoreconstructions. Review of Palaeobotany and Palynology, 297, 104578. DOI : 10.1016/j.revpalbo.2021.104578. Read the paper

4. Ramkumar, Muthuvairavasamy & K., Kumaraswamy & K., Balasubramani & Nagarajan, Ramasamy & Santosh, M. & Rahaman, s. Abdul & Kumar, Arun & K J, Juni & Fathima, Al & Siddiqui, Numair & Mathew, Manoj & Menier, David & Sautter, et al... (2021). Neolithic cultural sites and extreme climate related channel avulsion: Evidence from the Vaigai River Basin, southern India. Journal of Archaeological Science: Reports. Read the paper

5. Lambert C., Penaud A., Vidal M., Klouch K., Gregoire G., Ehrhold A., Eynaud F., Schmidt S., Ragueneau O., Siano R., (2018). Human-induced river runoff overlapping natural climate variability over the last 150 years : palynological evidences (Bay of Brest, NW France).(Global and Planetary Change). 160, 109-122. DOI : 10.1016/j.gloplacha.2017.11.004 Read the paper