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East-west extension and Holocene normal-fault scarps in the Hellenic arc

1992; Geological Society of America; Volume: 20; Issue: 6 Linguagem: Inglês

10.1130/0091-7613(1992)020 2.3.co;2

1943-2682

Rolando Armijo, H. Lyon‐Caen, D. Papanastassiou,

Earthquake Detection and Analysis

Research Article| June 01, 1992 East-west extension and Holocene normal-fault scarps in the Hellenic arc R. Armijo; R. Armijo 1Institut de Physique du Globe, 4 place Jussieu, 75252 Paris Cedex 05, France Search for other works by this author on: GSW Google Scholar H. Lyon-Caen; H. Lyon-Caen 1Institut de Physique du Globe, 4 place Jussieu, 75252 Paris Cedex 05, France Search for other works by this author on: GSW Google Scholar D. Papanastassiou D. Papanastassiou 2National Observatory of Athens, P.O. Box 20048, 11810 Athens, Greece Search for other works by this author on: GSW Google Scholar Geology (1992) 20 (6): 491–494. https://doi.org/10.1130/0091-7613(1992)020 2.3.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation R. Armijo, H. Lyon-Caen, D. Papanastassiou; East-west extension and Holocene normal-fault scarps in the Hellenic arc. Geology 1992;; 20 (6): 491–494. doi: https://doi.org/10.1130/0091-7613(1992)020 2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Examination of surface fault traces with Spot images and in the field corroborates the inference that the active tectonics of southern Peloponnesus and Crete are dominated by approximately north-south normal faulting and approximately east-west extension. The heights of Holocene normal-fault scarps yield first-order regional estimates of fault slip rates between 0.1 and 2-3 mm/yr. Most of the surface scarps probably ruptured during past earthquakes, such as that which destroyed Sparta in 464 B.C. On the Sparta fault the Holocene average slip rate and the recurrence time of large earthquakes may be ∼1 mm/yr and 3000 yr, respectively. The regional pattern of Quaternary faulting suggests that the east-west extension near the Hellenic subduction zone is fast (about 5%-10%/m.y.). The change from north-south to east-west extension in the late Pliocene (∼2-4 Ma) implies that the Aegean is starting to collide with the northern margin of Africa. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.