FN Archimer Export Format
PT J
TI Structure across the northeastern margin of Flemish Cap, offshore Newfoundland from Erable multichannel seismic reflection profiles: evidence for a transtensional rifting environment
BT 
AF WELFORD, J. Kim
   HALL, Jeremy
   SIBUET, Jean-Claude
   SRIVASTAVA, Shiri P.
AS 1:1;2:1;3:2;4:3;
FF 1:;2:;3:PDG-DOP-DCB-GM-LGG;4:;
C1 Mem Univ Newfoundland, Dept Earth Sci, St John, NF, Canada.
   IFREMER, Ctr Brest, Dept Geosci Marines, Plouzane, France.
   Geol Survey Canada, Bedford Inst Oceanog, Dartmouth, NS, Canada.
C2 UNIV NEWFOUNDLAND, CANADA
   IFREMER, FRANCE
   GEOL SURVEY CANADA ATLANTIC, CANADA
SI BREST
SE PDG-DOP-DCB-GM-LGG
IN WOS Ifremer jusqu'en 2018
   copubli-int-hors-europe
IF 2.411
TC 28
UR https://archimer.ifremer.fr/doc/00017/12776/11313.pdf
LA English
DT Article
CR REFRAMARGE (LEG 1)
   REFRAMARGE (LEG 2)
BO Le Suroît
DE ;Controlled source seismology;Continental margins: divergent;Continental tectonics: extensional;Submarine tectonics and volcanism;Crustal structure;Atlantic Ocean
AB P>We present the results from processing and interpreting nine multichannel seismic reflection lines collected during the 1992 Erable experiment over the northeastern margin of Flemish Cap offshore Newfoundland. These lines, combined into five cross-sections, provide increased seismic coverage over this lightly probed section of the margin and reveal tectonically significant along-strike variations in the degree and compartmentalization of crustal thinning. Similar to the southeastern margins of Flemish Cap and the Grand Banks, a transitional zone of exhumed serpentinized mantle is interpreted between thinned continental and oceanic crust. The 25 km wide transitional zone bears similarities to the 120 km wide transitional zone interpreted as exhumed serpentinized mantle on the conjugate Irish Atlantic margin but the significant width difference is suggestive of an asymmetric conjugate pair. A 40-50 km wide zone of inferred strike-slip shearing is interpreted and observed to extend along most of the northeastern margin of Flemish Cap. Individual shear zones (SZs) may represent extensions of SZs and normal faults within the Orphan Basin providing further evidence for the rotation and displacement of Flemish Cap out of Orphan Basin. The asymmetry between the Flemish Cap and Irish conjugate pairs is likely due in large part to the rotation and displacement of Flemish Cap which resulted in the Flemish Cap margin displaying features of both a strike-slip margin and an extensional margin.
PY 2010
PD NOV
SO Geophysical Journal International
SN 0956-540X
PU Wiley-blackwell Publishing, Inc
VL 183
IS 2
UT 000283172100006
DI 10.1111/j.1365-246X.2010.04779.x
ID 12776
ER

EF