A key continental archive for the last 2 Ma of climatic history of the central Mediterranean region: A pilot drilling in the Fucino Basin, central Italy

B. Giaccio , E. Regattieri , G. Zanchetta (1) , Bernd Wagner , P. Galli , G. Mannella , E. Niespolo , E. Peronace , P. Renne , S. Nomade (2, 3) , P. Cavinato , P. Messina , A. Sposato , C. Boschi , F. Florindo (4) , F. Marra , L. Sadori (5)

1 Dipartimento di Scienze della Terra
2 LSCE - Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette]
3 PALEOCEAN - Paléocéanographie
4 INGV - Istituto Nazionale di Geofisica e Vulcanologia - Sezione di Bologna
5 Dipartimento di Biologia Vegetale

An 82 m long sedimentary succession was retrieved from the Fucino Basin, the largest intermountain tectonic depression of the central Apennines. The basin hosts a succession of fine-grained lacustrine sediments (ca. 900 m-thick) possibly continuously spanning the last 2 Ma. A preliminary tephrostratigraphy study allows us to ascribe the drilled 82 m long record to the last 180 ka. Multi-proxy geochemical analyses (XRF scanning, total organic/inorganic carbon, nitrogen and sulfur, oxygen isotopes) reveal noticeable variations, which are interpreted as paleohydrological and paleoenvironmental expressions related to classical glacial-interglacial cycles from the marine isotope stage (MIS) 6 to present day. In light of the preliminary results, the Fucino sedimentary succession is likely to provide a long, continuous, sensitive, and independently dated paleoclimatic archive of the central Mediterranean area.

Domaines: Océan, Atmosphère; Interfaces continentales, environnement

B. Giaccio, E. Regattieri, G. Zanchetta, Bernd Wagner, P. Galli, et al.. A key continental archive for the last 2 Ma of climatic history of the central Mediterranean region: A pilot drilling in the Fucino Basin, central Italy. Scientific Drilling, 2015, 20, pp.13 - 19. ⟨10.5194/sd-20-13-2015⟩. ⟨hal-01805147⟩