FN Archimer Export Format
PT J
TI The Celtic Sea banks: an example of sand body analysis from very high-resolution seismic data
BT 
AF MARSSET, Tania
   TESSIER, Bernadette
   REYNAUD, Jean-Yves
   DE BATIST, M
   PLAGNOL, Clara
AS 1:1;2:2;3:2;4:3;5:1;
FF 1:;2:;3:PDG-DOP-DCB-GM-LES;4:;5:PDG-DOP-DCB-GM-LES;
C1 IFREMER, DRO, GM, Lab Environnements Sedimentaires, F-29280 Plouzane, France.
   Univ Lille 1, Lab Sedimentol & Geodynam, F-59655 Villeneuve Dascq, France.
   State Univ Ghent, Inst Geol, Renard Ctr Marine Geol, B-9000 Ghent, Belgium.
C2 IFREMER, FRANCE
   UNIV LILLE, FRANCE
   UNIV GHENT, BELGIUM
SI BREST
SE PDG-DOP-DCB-GM-LES
IF 1.901
TC 26
UR https://archimer.ifremer.fr/doc/00061/17192/14693.pdf
LA English
DT Article
CR BELGICA 94
   SEDIMANCHE 1
   SEDIMANCHE 2
BO Belgica
   L'Atalante
   Le Suroît
DE ;sand bank;tidal dynamics;dunes;channels;Celtic Sea;very high-resolution seismics
AB Very high-resolution seismic data from the Kaiser-I-Hind sand bank (southern Celtic Sea) recently highlighted the internal structure of the enigmatic Celtic Banks, which are among the deepest and largest shelf sand ridges. The main body of the bank is made up of 4 seismic/depositional units which reflect a transgressive evolution. New data on the detailed architecture of two of these units allow discussion of bank growth in terms of either (1) a channel–levee system preserved both by lateral migration and aggradation of the channels, or (2) a package of large offshore tidal sediment bodies (bar chains and/or giant dunes). Careful geometrical observations of seismic discontinuities make the second hypothesis more likely. The unit architecture is analysed in terms of long- to short-term processes of build-up. Long-term processes are evinced by the landward stacking of erosive sub-units in response of the last post-glacial sea-level rise, whereas short-term processes control the seaward progradation of sand bodies and fills due to the ebb predominance of the Western Channel Approaches.
PY 1999
PD JUL
SO Marine Geology
SN 0025-3227
PU Elsevier Science Bv
VL 158
IS 1-4
UT 000080242500006
BP 89
EP 109
DI 10.1016/S0025-3227(98)00188-1
ID 17192
ER

EF