FN Archimer Export Format
PT J
TI A new starting point for the South and Equatorial Atlantic Ocean
BT 
AF MOULIN, Maryline
   ASLANIAN, Daniel
   UNTERNEHR, Patrick
AS 1:1,2;2:1;3:3;
FF 1:PDG-DOP-DCB-GM-LGG;2:PDG-DOP-DCB-GM-LGG;3:;
C1 IFREMER, Ctr Brest, DRO Geosci Marines, F-29280 Plouzane, France.
   Univ Lisbon, Fac Ciencias, IDL, LATTEX, P-1749016 Lisbon, Portugal.
   Total, Explorat Prod Geosci Projets Nouveaux Expertise G, F-92078 Paris, France.
C2 IFREMER, FRANCE
   UNIV LISBON, PORTUGAL
   TOTAL, FRANCE
SI BREST
SE PDG-DOP-DCB-GM-LGG
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-europe
IF 5.833
TC 378
UR https://archimer.ifremer.fr/doc/00000/11160/7883.pdf
LA English
DT Article
CR R.V VEMA
   R.V VEMA LEG I CH77
   R.V VEMA LEG II CH78
   R.V VEMA LEG III CH79
   SANBA
   WALDA-001  CH18
   WALDA-002  CH19
   WALDA-003  CH20
   WALDA-004  CH21
   WALDA-005  CH22
   ZAIANGO-OBS-BIOL
   ZAIANGO1
   ZAIANGO2
   ZAIANGOSMT
BO Jean Charcot
   Le Suroît
   Anchored Buoy
   L'Atalante
   Le Nadir
DE ;initial kinematic reconstruction;South and Equatorial Atlantic Oceans;intraplate deformation;magnetic anomalies
AB The opening of the Equatorial and South Atlantic Oceans is still a matter of debate, particularly as concerns the locations of the intraplate deformation. We propose here a critical review of the kinematic models published since Bullard et al., 1965, based on a series of constraints: new interpretation of the magnetic anomalies, seafloor isochrons, flow lines, fracture zones, continental and oceanic homologous structures and radiometric dating of igneous rocks. All of these models present numerous unexplained misfits (gaps, overlaps and misalignments). We present here a new evolution of the Equatorial and South Atlantic Ocean from the tightest reconstruction to Chron C34. This new model confirms the hypothesis of a northward propagation of the South American deformation proposed by Eagles, but rejuvenates slightly the ages for this propagation and refines the plate reconstructions. In particular, we highlight the role of the kinematic "buffer" Santos block, located between the salty Aptian Central segment in the North and the Volcanic Hauterivian Austral segment in the South. The new initial fit presented in this study represents the tightest reconstruction that could be obtained and constitutes the base canvas on which the problem of the continental margin genesis should be addressed.
PY 2010
SO Earth Science Reviews
SN 0012-8252
PU Elsevier Science Bv
VL 98
IS 1-2
UT 000274559600001
BP 1
EP 37
DI 10.1016/j.earscirev.2009.08.001
ID 11160
ER

EF