FN Archimer Export Format
PT J
TI Authigenic 10Be/9Be ratio signature of the Matuyama–Brunhes boundary in the Montalbano Jonico marine succession
BT 
AF SIMON, Quentin
   BOURLES, Didier L.
   BASSINOT, Franck
   NOMADE, Sebastien
   MARINO, Maria
   CIARANFI, Neri
   GIRONE, Angela
   MAIORANO, Patrizia
   THOUVENY, Nicolas
   CHOY, Sandrine
   DEWILDE, Fabien
   SCAO, Vincent
   ISGUDER, Gulay
   BLAMART, Dominique
AS 1:1,2;2:1;3:3,4;4:3,4;5:5;6:5;7:5;8:5;9:1;10:1,2;11:3,4;12:3,4;13:3,4;14:3,4;15:;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;14:;15:;
C1 Aix Marseille Univ, Coll France, CNRS, IRD,CEREGE UM34, Aix En Provence, France.
   Univ Paris Diderot, Sorbonne Paris Cite, IPGP, UMR 7154 CNRS, F-75238 Paris, France.
   UVSQ, CNRS, CEA, Lab Sci Climat & Environm, UMR8212, LSCE IPSL, Gif Sur Yvette, France.
   Univ Paris Saclay, Gif Sur Yvette, France.
   Univ Bari Aldo Moro, Dept Earth & Geoenvironm Sci, E Orabona 4, I-70125 Bari, Italy.
C2 UNIV AIX MARSEILLE, FRANCE
   UNIV PARIS 7 DIDEROT, FRANCE
   UNIV VERSAILLES, FRANCE
   UNIV PARIS SACLAY, FRANCE
   UNIV BARI ALDO MORO, ITALY
IF 4.581
TC 32
UR https://archimer.ifremer.fr/doc/00420/53183/55042.pdf
   https://archimer.ifremer.fr/doc/00420/53183/55043.xlsx
   https://archimer.ifremer.fr/doc/00420/53183/55044.xlsx
   https://archimer.ifremer.fr/doc/00420/53183/55045.xlsx
LA English
DT Article
CR IMAGES 3-IPHIS-MD106
   IMAGES 4-MD111
   PROMETE 90 (2)
   SEYMAMA - MD 65
BO Marion Dufresne
DE ;Be-10 cosmogenic nuclide;authigenic Be-10/Be-9 ratio;Matuyama Brunhes Boundary (MBB);high-resolution oxygen isotope stratigraphy;MIS 19;GSSP stratotype
AB Geomagnetic dipole moment (GDM) lows associated with polarity reversals or geomagnetic excursions induce significant modulation of the cosmogenic nuclide Beryllium-10 (Be-10) production. Hence, the reconstruction of atmospheric Be-10 production rates from natural archives such as marine sedimentary sequences or ice cores constitutes a complementary approach, independent from paleomagnetic measurements, to decipher past GDM fluctuations. This is particularly important in the Montalbano Jonico succession (South Italy) since it is candidate to host the Global Stratotype Section and Point of the Middle Pleistocene Stage but where the magnetostratigraphic positioning of the Matuyama-Brunhes boundary (MBB) has not been available up to now. This study presents (1) original authigenic Be-10 cosmogenic nuclide and Be stable isotope results, and (2) new high-resolution benthic oxygen isotope record covering termination IX and Marine Isotope Stage (MIS) 19. A robust chronological framework is established on the basis of (i) our oxygen isotope stratigraphy, using the strong analogies between MIS 1 and MIS 19c in terms of orbital forcing and CO2 level, and (ii) one precise Ar-40/Ar-39 date obtained in the tephra layer V4. The authigenic Be-10/Be-9 ratio record marks the atmospheric Be-10 overproduction linked to the dipole low accompanying the MBB transition, with a characteristic twofold increase of the Be-10 production at the end of MIS 19c and early MIS 19b. This signature is similar to those described in both marine and ice core records. The detailed chronostratigraphy constrained by a radiometrically-dated tephra layer (773.9 +/- 1.3 ka) within the MBB interval, makes it possible to discuss the structure and to assess the timing of the Be-10-production changes, and thus the MBB geomagnetic variations, with an unprecedented accuracy for a marine archive (sedimentation rates similar to 80 cm/ka). These new cosmogenic nuclide production signatures provide the only missing constraint required for retaining the Montalbano Jonico succession as a global-scale correlation reference section for the Early-Middle Pleistocene boundary. 
PY 2017
PD FEB
SO Earth And Planetary Science Letters
SN 0012-821X
PU Elsevier Science Bv
VL 460
UT 000393008500027
BP 255
EP 267
DI 10.1016/j.epsl.2016.11.052
ID 53183
ER

EF