FN Archimer Export Format
PT J
TI Quaternary evolution of the Golo river alluvial plain (NE Corsica, France)
BT 
AF Molliex, Stéphane
   Jouet, Gwenael
   Blard, Pierre-Henri
   Moreau, Julien
   Demartini, Julie
   Storms, Joep E.A.
   Vella, Claude
AS 1:1,2;2:3;3:2,3;4:4,5;5:6;6:7;7:5;8:5;
FF 1:;2:;3:;4:PDG-REM-GM;5:;6:;7:;8:;
C1 Laboratoire Geosciences Océan UMR CNRS 6538, Institut Universitaire Européen de la Mer, Place N. Copernic, 29280, Plouzané, France
   CRPG, UMR 7358, CNRS-Université de Lorraine, 15 Rue Notre Dame des Pauvres, 54501, Vandœuvre-lès-Nancy Cedex, France
   Laboratoire de Glaciologie, DGES-IGEOS, Université Libre de Bruxelles, 1050, Bruxelles, Belgium
   IFREMER, Département Geosciences Marines, Z.I. Pointe Du Diable, BP70, 29280, Plouzané, France
   Aix-Marseille University, CNRS-IRD-Collège de France, UM34 CEREGE, BP 80, 13545, Aix-en-Provence Cedex 4, France
   ODARC, Avenue Paul Giacobbi, BP 618, 20601, Bastia Cedex, France
   Department of Geoscience and Engineering, Delft University of Technology, Delft, the Netherlands
C2 UBO, FRANCE
   CNRS, FRANCE
   UNIV LIBRE BRUXELLES, BELGIUM
   IFREMER, FRANCE
   UNIV AIX MARSEILLE, FRANCE
   ODARC, FRANCE
   UNIV DELFT, NETHERLANDS
SI BREST
SE PDG-REM-GM
UM LGO
IN WOS Ifremer UPR
   copubli-france
   copubli-europe
   copubli-univ-france
IF 3.252
TC 2
UR https://archimer.ifremer.fr/doc/00646/75803/76732.pdf
LA English
DT Article
DE ;Alluvial plain;Be-10 depth-Profile;Quaternary;Geomorphology;Electric resistivity tomography;Soil sequence chronology;Corsica;Terraces
AB The Golo River drains a steep catchment (average gradient of 30 m km−1, surface of 1214 km2) in the northeast part of Corsica Island, delivering sediments to the Ligurian Sea. In this study, we review and revise the geologic map and constrain the extent of the Golo coastal alluvial plain formations and their relative and absolute chronology. To update the surface extent of each formation, we performed a geomorphologic analysis with DEMs and satellite imagery data coupled with an extensive pedogenic and sedimentary field observations database, including a new borehole of 117,4 m depth. Additionally, we performed in-situ cosmogenic 10Be analysis from a depth-profile in the well-preserved alluvial terrace Fy2, yielding a minimum age of 70 ka for its emplacement. Our new chronology, based on cosmogenic 10Be and soil chronosequences, implies older ages than those previously obtained with luminescence methods. Soil mixing by bioturbation is proposed as a possibility to explain differences between luminescence and 10Be ages. In this scenario, 10Be dates the original deposition of the alluvial terrace, while luminescence dates a later soil development. We highlighted at least five outcropping alluvial terraces in the Golo coastal plain, which are controlled by sea-level fluctuations and were most likely deposited during past sea-level highstands (close to present-day sea-level). Moreover, we identified from a borehole more than 117 m of coarse fluvial sediments in the plain, that do not outcrop at the surface. New cosmogenic 26Al/10Be burial ages suggest that this sedimentary unit results from a thick accumulation of fluvial material filling a zone significantly affected by subsidence, probably accommodated by a normal fault during the Early Quaternary. 
PY 2021
PD FEB
SO Quaternary Geochronology
SN 1871-1014
PU Elsevier BV
VL 61
UT 000596533700003
DI 10.1016/j.quageo.2020.101115
ID 75803
ER

EF