TY - JOUR
T1 - From subduction to transform motion
T2 - a seabeam survey of the Hellenic trench system
AU - Le Pichon, Xavier
AU - Angelier, Jacques
AU - Aubouin, Jean
AU - Lyberis, Nicolas
AU - Monti, Serge
AU - Renard, Vincent
AU - Got, Henri
AU - Hsü, Ken
AU - Mart, Yossi
AU - Mascle, Jean
AU - Matthews, Drummond
AU - Mitropoulos, Dimitri
AU - Tsoflias, Pandelis
AU - Chronis, Georges
PY - 1979/9
Y1 - 1979/9
N2 - Preliminary results of a multi-narrow beam survey of the Hellenic trench system, in the Eastern Mediterranean, are presented. The southwestern Ionian branch is divided in small basins, partly filled with Pleistocene sediments. The morphology suggests that the basins are deformed by a compressional stress acting roughly perpendicularly to the trench along N50°E. This direction is the direction of the regional slip vector of the shallow thrust-type earthquakes. The structure of the southeastern Pliny-Strabo branch is quite different. Narrow en-échelon slots, oriented N40°E, have been mapped within the main troughs oriented N60°E. The regional earthquake slip vector is also oriented along N40°E. We conclude that the Hellenic trench system is an active subduction system, dominated by thrust along the Ionian branch and by transform motion along the Pliny-Strabo branch.
AB - Preliminary results of a multi-narrow beam survey of the Hellenic trench system, in the Eastern Mediterranean, are presented. The southwestern Ionian branch is divided in small basins, partly filled with Pleistocene sediments. The morphology suggests that the basins are deformed by a compressional stress acting roughly perpendicularly to the trench along N50°E. This direction is the direction of the regional slip vector of the shallow thrust-type earthquakes. The structure of the southeastern Pliny-Strabo branch is quite different. Narrow en-échelon slots, oriented N40°E, have been mapped within the main troughs oriented N60°E. The regional earthquake slip vector is also oriented along N40°E. We conclude that the Hellenic trench system is an active subduction system, dominated by thrust along the Ionian branch and by transform motion along the Pliny-Strabo branch.
UR - http://www.scopus.com/inward/record.url?scp=0000979623&partnerID=8YFLogxK
U2 - 10.1016/0012-821X(79)90082-7
DO - 10.1016/0012-821X(79)90082-7
M3 - Article
AN - SCOPUS:0000979623
SN - 0012-821X
VL - 44
SP - 441
EP - 450
JO - Earth and Planetary Science Letters
JF - Earth and Planetary Science Letters
IS - 3
ER -