FN Archimer Export Format
PT J
TI Neogene-Quaternary architecture and sedimentary processes on an isolated carbonate-fed deep-water basin (Fairway Basin, Southwest Pacific)
BT 
AF PATTIER, France
   Etienne, S.
   Collot, J
   Patriat, Martin
   Tournadour, Elsa
   Roest, Walter
   Rouillard, P.
AS 1:1,2,3;2:1,2;3:2;4:2,3;5:1,2;6:3;7:2;
FF 1:;2:;3:;4:PDG-REM-GM-LAD;5:PDG-REM-GM-LAD;6:PDG-REM-GM-LAD;7:;
C1 ADECAL Technopole, ZoNéCo Research Program, Nouméa, New Caledonia
   Geological Survey of New Caledonia, DIMENC, BP 465, 98845 Nouméa, New Caledonia
   Ifremer, Géosciences Marines, CS 10070, 29280 Plouzané, France
C2 ADECAL TECHNOPOLE, FRANCE
   DIMENC, FRANCE
   IFREMER, FRANCE
SI BREST
SE PDG-REM-GM-LAD
IN WOS Ifremer UPR
   copubli-france
IF 3.04
TC 4
UR https://archimer.ifremer.fr/doc/00488/60001/63237.pdf
LA English
DT Article
CR FAUST1
   MD 153 / AUSFAIR
   NOUCAPLAC
   TECTA
   ZONECO11
   ZONECO4
   ZONECO5
BO Marion Dufresne
   L'Atalante
DE ;Deep-water carbonates;Submarine landslides;Turbidites;Polygonal faulting;Fluid escape;Fairway Basin
AB The Fairway Basin is an intracratonic deep-water basin inherited from cretaceous rifting, perched between the Lord Howe Rise and the New Caledonia Basin in the Southwest Pacific. Its originality lies in its atypical present-day physiography and its carbonate-dominated sedimentary setting since the Miocene. Although very limited well controls are available, its overall structure, seismic stratigraphy and architecture are relatively well known. However, little is known on the detailed sedimentary processes controlling its recent infill. Its remote location from any major clastic sediment sources provides a great setting to study deep-water carbonate sedimentary processes. In this paper, we propose a detailed analysis of surface morphologies based on existing multibeam and subbottom echosounding data together with an analysis of the Neogene to Quaternary basin-fill based on seismic reflection data. This allows us to discuss active sedimentary processes, notably gravity flow processes which are thought to be active since the Middle Miocene. These processes are evidenced by both surface and subsurface features, such as submarine canyons, channels and lobes, composite scarps and mass transport deposits (MTDs). In the northern part of the basin, a 400 km-long axial turbidite system is developed close to the Lansdowne Bank, a partly drowned isolated carbonate platform, where present-day sediment remobilisation seems to be essentially sourced from intra-slope instabilities. These reworked sediments extend over an area of 16,000 km2. Along with this axial turbidite system, seismic data show two main mass transport complexes (covering an area of ca 20% of the basin's surface) originating from the slopes of the basin. The potential triggering mechanisms of MTDs of the northern complex might be directly attributed to overloading and high slope values of the Lansdowne Bank area (>1.5°). For the southern complex, surface slope values are lower (<1.4°), and the role of fluid migration and escape is discussed. The Fairway Basin indeed shows strong evidences for fluid generation (e.g. polygonal faulting, pockmarks, presence of a widespread Opal-A/Opal-CT diagenesis-related bottom simulating reflectors) and fluid overpressures. 
PY 2019
PD JUN
SO Marine Geology
SN 0025-3227
PU Elsevier BV
VL 413
UT 000474677200003
BP 27
EP 47
DI 10.1016/j.margeo.2019.04.003
ID 60001
ER

EF