FN Archimer Export Format
PT J
TI Optimising the use of marine tephrochronology in the North Atlantic: a detailed investigation of the Faroe Marine Ash Zones II, III and IV
BT 
AF GRIGGS, Adam J.
   DAVIES, Siwan M.
   ABBOTT, Peter M.
   RASMUSSEN, Tine L.
   PALMER, Adrian P.
AS 1:1;2:1;3:1;4:2;5:3;
FF 1:;2:;3:;4:;5:;
C1 Swansea Univ, Coll Sci, Dept Geog, Swansea SA2 8PP, W Glam, Wales.
   Univ Tromso, Dept Geol, Ctr Arct Gas Hydrate Environm & Climate CAGE, N-9037 Tromso, Norway.
   Royal Holloway Univ London, Dept Geog, Egham TW20 0EX, Surrey, England.
C2 UNIV SWANSEA, UK
   UNIV TROMSO, NORWAY
   UNIV ROYAL HOLLOWAY LONDON, UK
IF 4.572
TC 43
UR https://archimer.ifremer.fr/doc/00496/60734/65220.pdf
   https://archimer.ifremer.fr/doc/00496/60734/65221.xlsx
LA English
DT Article
CR IMAGES 1-MD101
BO Marion Dufresne
DE ;North Atlantic;Tephra;Taphonomy;Synchronisation;Micromorphology
AB Tephrochronology is central to the INTIMATE(1) goals for testing the degree of climatic synchroneity during abrupt climatic events that punctuated the last glacial period. Since their identification in North Atlantic marine sequences, the Faroe Marine Ash Zone II (FMAZ II), FMAZ III and FMAZ IV have received considerable attention due to their potential for high-precision synchronisation with the Greenland ice-cores. In order to optimise the use of these horizons as isochronous markers, a detailed re-investigation of their geochemical composition, sedimentology and the processes that deposited each ash zone is presented. Shard concentration profiles, geochemical homogeneity and micro-sedimentological structures are investigated for each ash zone preserved within core JM11-19PC, retrieved from the southeastern Norwegian Sea on the central North Faroe Slope. This approach allows a thorough assessment of primary ash-fall preservation and secondary depositional features and demonstrates its value for assessing depositional integrity in the marine environment. Results indicate that the FMAZ II and IV are well-resolved primary deposits that can be used as isochrons for high-precision correlation studies. We outline key recommendations for future marine tephra studies and provide a protocol for optimising the application of tephrochronology to meet the INTIMATE synchronisation goals. 
PY 2014
PD DEC
SO Quaternary Science Reviews
SN 0277-3791
PU Pergamon-elsevier Science Ltd
VL 106
UT 000348010900009
BP 122
EP 139
DI 10.1016/j.quascirev.2014.04.031
ID 60734
ER

EF