학술논문

Holocene uplift and palaeoseismicity on the Eliki Fault, Western Gulf of Corinth, Greece
Document Type
article
Author
Source
Annals of Geophysics, Vol 39, Iss 3 (1996)
Subject
palaeoseismology
normal faulting
holocene sea-level change
14C dating
Greece
Meteorology. Climatology
QC851-999
Geophysics. Cosmic physics
QC801-809
Language
English
ISSN
1593-5213
2037-416X
Abstract
Radiocarbon dating of elevated coastal phenomena along the emergent footwall of the Eliki Fault in the West- em Gulf of Corinth has established a chronology of tectonic emergence during Holocene times. The results confirm -6 m of coastal uplift over the last 3000 years at sites both immediately adjacent to, and more distant from, the offshore l'ault. Although revealing little or no spatial vm.iation along the fault, temporally the data de- fine two phases of enhanced tectonic activity (0-3000 year B.P. and pre- 7-8000 year B.P.) separated by a 4- 5000 year period of tectonic quiescence. Well documented historical surface faulting during the most recent lclive phase testify to the contribution to net uplift played by coseismic increments, but these are considered to be superimposed on significant aseismic movements. While asesismic uplift confuses the palaeoseismic .ecord, correlation of prominent notch levels with dated raised shoreline fauna provides evidence for at least 3 surface faulting events during the past 2500 years.