FN Archimer Export Format
PT J
TI Impact of tectonic and volcanism on the Neogene evolution of isolated carbonate platforms (SW Indian Ocean)
BT 
AF COURGEON, Simon
   JORRY, Stephan
   JOUET, Gwenael
   CAMOIN, G.
   BOUDAGHER-FADEL, M. K.
   BACHELERY, P.
   CALINE, B.
   BOICHARD, R.
   REVILLON, Sidonie
   THOMAS, Yannick
   THEREAU, Estelle
   GUERIN, Charline
AS 1:1,2;2:2;3:2;4:1;5:3;6:4;7:5;8:5;9:6;10:1;11:1;12:1;
FF 1:PDG-REM-GM-LGS;2:PDG-REM-GM-LGS;3:PDG-REM-GM-LGS;4:;5:;6:;7:;8:;9:;10:PDG-REM-GM-LAD;11:PDG-REM-GM-LAD;12:PDG-REM-GM-CTDI;
C1 Aix Marseille Univ, CNRS, IRD, Coll France,CEREGE, Aix En Provence, France.
   IFREMER, Unite Geosci Marines, F-29280 Plouzane, France.
   UCL, Earth Sci, 2 Taviton St, London WC1H 0BT, England.
   Univ Clermont Auvergne, CNRS, IRD, OPGC,Lab Magmas & Volcans, F-63000 Clermont Ferrand, France.
   CSTJF, TOTAL Explorat & Prod, Ave Larribau, F-64000 Pau, France.
   IUEM, UMR 6538, Lab Domaines Ocean, SEDISOR, F-29280 Plouzane, France.
C2 UNIV AIX MARSEILLE, FRANCE
   IFREMER, FRANCE
   UNIV COLL LONDON, UK
   UNIV CLERMONT AUVERGNE, FRANCE
   CSTJF, FRANCE
   UBO, FRANCE
SI BREST
SE PDG-REM-GM-LGS
   PDG-REM-GM-LAD
   PDG-REM-GM-CTDI
UM LGO
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-europe
   copubli-univ-france
IF 2.575
TC 35
UR https://archimer.ifremer.fr/doc/00384/49554/50048.pdf
LA English
DT Article
CR PAMELA-MOZ01
   PAMELA-MOZ04
   PTOLEMEE
BO L'Atalante
   Pourquoi pas ?
DE ;Carbonate platform;Drowning;Volcanism;Tectonic;Mozambique Channel
AB Understanding the impact of tectonic activity and volcanism on long-term (i.e. millions years) evolution of shallow-water carbonate platforms represents a major issue for both industrial and academic perspectives. The southern central Mozambique Channel is characterized by a 100 km-long volcanic ridge hosting two guyots (the Hall and Jaguar banks) and a modern atoll (Bassas da India) fringed by a large terrace. Dredge sampling, geophysical acquisitions and submarines videos carried out during recent oceanographic cruises revealed that submarine flat-top seamounts correspond to karstified and drowned shallow-water carbonate platforms largely covered by volcanic material and structured by a dense network of normal faults. Microfacies and well-constrained stratigraphic data indicate that these carbonate platforms developed in shallow-water tropical environments during Miocene times and were characterized by biological assemblages dominated by corals, larger benthic foraminifera, red and green algae. The drowning of these isolated carbonate platforms is revealed by the deposition of outer shelf sediments during the Early Pliocene and seems closely linked to (1) volcanic activity typified by the establishment of wide lava flow complexes, and (2) to extensional tectonic deformation associated with high-offset normal faults dividing the flat-top seamounts into distinctive structural blocks. Explosive volcanic activity also affected platform carbonates and was responsible for the formation of crater(s) and the deposition of tuff layers including carbonate fragments. Shallow-water carbonate sedimentation resumed during Late Neogene time with the colonization of topographic highs inherited from tectonic deformation and volcanic accretion. Latest carbonate developments ultimately led to the formation of the Bassas da India modern atoll. The geological history of isolated carbonate platforms from the southern Mozambique Channel represents a new case illustrating the major impact of tectonic and volcanic activity on the long-term evolution of shallow-water carbonate platforms. 
PY 2017
PD JUL
SO Sedimentary Geology
SN 0037-0738
PU Elsevier Science Bv
VL 355
UT 000403130000007
BP 114
EP 131
DI 10.1016/j.sedgeo.2017.04.008
ID 49554
ER

EF