FN Archimer Export Format
PT J
TI Crustal structure of the Ionian basin and eastern Sicily margin: results from a wide-angle seismic survey.
BT 
AF DELLONG, David
   KLINGELHOEFER, Frauke
   KOPP, Heidrun
   GRAINDORGE, David
   MARGHERITI, Lucia
   MORETTI, Milena
   MURPHY, Shane
   GUTSCHER, Marc-Andre
AS 1:1,2;2:2;3:3;4:1;5:4;6:4;7:2;8:1;
FF 1:PDG-REM-GM-LAD;2:PDG-REM-GM-LAD;3:;4:;5:;6:;7:PDG-REM-GM-LAD;8:;
C1 Univ Brest, CNRS, Lab Geosci Ocean, IUEM, Plouzane, France.
   IFREMER, Ctr Brest, Geosci Marines, Plouzane, France.
   Geomar Helmholtz Ctr Ocean Res, Kiel, Germany.
   Ist Nazl Geofis & Vulcanol, Rome, Italy.
C2 UBO, FRANCE
   IFREMER, FRANCE
   GEOMAR HELMHOLTZ CTR OCEAN RES, GERMANY
   INGV, ITALY
SI BREST
SE PDG-REM-GM-LAD
UM LGO
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-europe
   copubli-univ-france
IF 3.585
TC 41
UR https://archimer.ifremer.fr/doc/00427/53885/54956.pdf
   https://archimer.ifremer.fr/doc/00427/53885/54957.pdf
LA English
DT Article
DE ;Ionian basin;crustal structure;wide-angle seismic;geodynamic;Mediterranean;Malta Escarpment
AB In the Ionian Sea (Central Mediterranean) the slow convergence between Africa and Eurasia results in the formation of a narrow subduction zone. The nature of the crust of the subducting plate remains debated and could represent the last remnants of the Neo-Tethys ocean. The origin of the Ionian basin is also under discussion, especially concerning the rifting mechanisms as the Malta Escarpment could represent a remnant of this opening. This subduction retreat toward the south-east (motion occurring since the last 35 Ma) but is confined to the narrow Ionian Basin. A major lateral slab tear fault is required to accommodate the slab roll-back. This fault is thought to propagate along the eastern Sicily margin but its precise location remains controversial. This study focuses on the deep crustal structure of the Eastern-Sicily margin and the Malta Escarpment. We present two two-dimensional P-wave velocity models obtained from forward modeling of wide-angle seismic data acquired onboard the R/V Meteor during the DIONYSUS cruise in 2014. The results image an oceanic crust within the Ionian basin as well as the deep structure of the Malta Escarpment, which presents characteristics of a transform margin. A deep and asymmetrical sedimentary basin is imaged south of the Messina strait and seems to have opened between the Calabrian and Peloritan continental terranes. The interpretation of the velocity models suggests that the tear fault is located east of the Malta Escarpment, along the Alfeo fault system (AFS). 
PY 2018
PD MAR
SO Journal Of Geophysical Research-solid Earth
SN 2169-9313
PU Amer Geophysical Union
VL 123
IS 3
UT 000430393900004
BP 2090
EP 2114
DI 10.1002/2017JB015312
ID 53885
ER

EF