Stratigraphic architecture of the Plio-Pleistocene infill of the Corinth Rift: Implications for its structural evolution

Rohais, Sébastien; Eschard, R.; Ford, Mary; Guillocheau, François; Moretti, Isabelle

doi:10.1016/j.tecto.2006.11.006

Cited by 100 publications

(231 citation statements)

References 63 publications

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“…The higher uplift rates inferred in the central sector of the northern Péloponnèse coast are also confirmed by Rohais et al (2007a), whose restoration of the syn-rift infill implies that the Krathis region was most uplifted. Moreover, uplifted Holocene marine deposits and corrosion notches along the coast of the central rift have recorded recently accelerated uplift, with rates up to 3-3.5 mm year -1 (Pirazzoli et al 2004;De Martini et al, 2004).…”

Section: Naf: North Anatolian Faultmentioning

confidence: 54%

“…Antecedent rivers incising the elevated hinterland started to accumulate, mainly north of a line joining the Pirgaki, Mamousia, and Kilini faults, huge alluvial fans going northward into giant Gilbert-type deltas. During their estimated -0.8 Ma lifetime, northward progradation of the deltas, possibly recording the northward migration of the uplifting area (Rohais et al, 2007a), progressively shifted the central gulfs southern shoreline by about 15 km (Rohais et al, 2007b). By contrast, in the west, suggest that northward migration of fault activity onto the Pirgaki and Mamousia faults occurred more abruptly at the beginning of this stage.…”

Section: Naf: North Anatolian Faultmentioning

confidence: 97%

“…The mostly north-dipping faults of the southern margin are grouped in several parallel lines of right-stepping en-échelon faults, both on-and offshore. The presence of uplifted syn-rift sediments widely exposed in the northern Peloponnese bears witness to a significant uplift of the southern rift shoulder (Rohais et al, 2007a;. By contrast, most faults of the northern margin are located in a narrow zone situated within the drowned part of the rift.…”

Section: Naf: North Anatolian Faultmentioning

confidence: 99%

“…There, up to 2800-m-thick synrift sediments have been uplifted and, subsequently, exposed to erosion (Rohais et al, 2007a). The resulting geomorphological sequence of the northern Peloponnese displays, from south to north (1) drainage networks strongly incised within former uplifted footwall blocks, with deep narrow gorges (e.g., the Vouraikos gorge) and valley depths of 500 to 800 m; (2) characteristic braided channels in the middle and lower river reaches, transferring huge amounts of sediments delivered by the eroding uplifted deltas; (3) coastal areas extending a few kilometres inland and showing poorly developed drainage systems and limited incision in the uplifting footwall of the currently active rift margin; and (4) development of large fan deltas along the modern shoreline.…”

Section: Naf: North Anatolian Faultmentioning

confidence: 99%

“…With a length of 49 km and a catchment area of 366 km 2 , the Selinous is the largest Peloponnesian river draining to the Corinth gulf. Backtilting also caused drainage reversal toward poljes developed in the limestone basement cropping out in the south (Feneos, Stymfalia), forming endorheic basins at the expense of the north-flowing rivers (Rohais et al, 2007a). Furthermore, karstic phenomena are also present in the catchments of some of these rivers (e.g., the Asopos), significantly reducing discharge and stream power in the concerned reaches.…”

Section: Naf: North Anatolian Faultmentioning

confidence: 99%

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Patterns of Quaternary uplift of the Corinth rift southern border (N Peloponnese, Greece) revealed by fluvial landscape morphometry

2015

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The Rift of Corinth is a world-class example of young active rifting and, as such, is an ideal natural laboratory of continental extension. However, though much investigated for two decades, several aspects of the mechanisms at work are still poorly understood. The aim of this paper is a detailed morphometric study of the fluvial landscape response to the tectonic uplift of the rift southern shoulder in order to reconstruct the rift's Quaternary evolution, with special attention to timing, location, and intensity of uplift episodes. Based on the use of a large set of catchment and long profile metrics complemented by the new R/S R integrative approach of the regional drainage network, we identified three distinct episodes of uplift of the northern Peloponnese coastal tract, of which the intermediate one, dated around 0.35-0.4 Ma, is only recorded in the topography of the central part of the rift shoulder, and the youngest one appears to have propagated from east to west over the last 10-20 ka. While net uplift remained minimum in the eastern part of the study area during the whole Quaternary, it shows a clear maximum in the central part of the rift shoulder since 0.4 Ma and an eastward shift of this maximum in recent times. Maximum uplift rates calculated from the morphometric data are of > 1.05 and 2-5 mm year -1 for, the mid-Middle Pleistocene and Holocene uplift episodes, respectively. The morphometric evidence reveals an onshore uplift history remarkably consistent with the rift evolution reconstructed from other data sets. In the long term, it shows a stable pattern of maximum activity in the central part of the rift, confirming previous conclusions about the absence of rift propagation. In the short term, it sheds light on a possible E-W migration of the zone of recent uplift, suggesting that in the near future fault activity and seismic hazard might concentrate in the Heliki-Aegion area, at the western tip of this uplift wave.

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Section: Naf: North Anatolian Faultmentioning

confidence: 54%

Section: Naf: North Anatolian Faultmentioning

confidence: 97%

Section: Naf: North Anatolian Faultmentioning

confidence: 99%

Section: Naf: North Anatolian Faultmentioning

confidence: 99%

Section: Naf: North Anatolian Faultmentioning

confidence: 99%

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Patterns of Quaternary uplift of the Corinth rift southern border (N Peloponnese, Greece) revealed by fluvial landscape morphometry

2015

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Interactions between plutonism and detachments during metamorphic core complex formation, Serifos Island (Cyclades, Greece)

et al. 2015

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In order to better understand the interactions between plutonic activity and strain localization during metamorphic core complex formation, the Miocene granodioritic pluton of Serifos (Cyclades, Greece) is studied. This pluton (11.6-9.5 Ma) intruded the Cycladic Blueschists during thinning of the Aegean domain along a system of low-angle normal faults belonging to the south dipping West Cycladic Detachment System (WCDS). Based on structural fieldwork, together with microstructural observations and anisotropy of magnetic susceptibility, we recognize a continuum of deformation from magmatic to brittle conditions within the magmatic body. This succession of deformation events is kinematically compatible with the development of the WCDS. The architecture of the pluton shows a marked asymmetry resulting from its interaction with the detachments. We propose a tectonic scenario for the emplacement of Serifos pluton and its subsequent cooling during the Aegean extension: (1) A first stage corresponds to the metamorphic core complex initiation and associated southwestward shearing along the Meghàlo Livadhi detachment. (2) In the second stage, the Serifos pluton has intruded the dome at shallow crustal level, piercing through the ductile/brittle Meghàlo Livadhi detachment. Southwest directed extensional deformation was contemporaneously transferred upward in the crust along the more localized Kàvos Kiklopas detachment. (3) The third stage was marked by synmagmatic extensional deformation and strain localization at the contact between the pluton and the host rocks resulting in nucleation of narrow shear zones, which (4) continued to develop after the pluton solidification.

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Rapid spatiotemporal variations in rift structure during development of the Corinth Rift, central Greece

et al. 2016

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The Corinth Rift, central Greece, enables analysis of early rift development as it is young (<5 Ma) and highly active and its full history is recorded at high resolution by sedimentary systems. A complete compilation of marine geophysical data, complemented by onshore data, is used to develop a high-resolution chronostratigraphy and detailed fault history for the offshore Corinth Rift, integrating interpretations and reconciling previous discrepancies. Rift migration and localization of deformation have been significant within the rift since inception. Over the last circa 2 Myr the rift transitioned from a spatially complex rift to a uniform asymmetric rift, but this transition did not occur synchronously along strike. Isochore maps at circa 100 kyr intervals illustrate a change in fault polarity within the short interval circa 620-340 ka, characterized by progressive transfer of activity from major south dipping faults to north dipping faults and southward migration of discrete depocenters at~30 m/kyr. Since circa 340 ka there has been localization and linkage of the dominant north dipping border fault system along the southern rift margin, demonstrated by lateral growth of discrete depocenters at~40 m/kyr. A single central depocenter formed by circa 130 ka, indicating full fault linkage. These results indicate that rift localization is progressive (not instantaneous) and can be synchronous once a rift border fault system is established. This study illustrates that development processes within young rifts occur at 100 kyr timescales, including rapid changes in rift symmetry and growth and linkage of major rift faults.

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Stratigraphic architecture of the Plio-Pleistocene infill of the Corinth Rift: Implications for its structural evolution

Cited by 100 publications

References 63 publications

Patterns of Quaternary uplift of the Corinth rift southern border (N Peloponnese, Greece) revealed by fluvial landscape morphometry

Patterns of Quaternary uplift of the Corinth rift southern border (N Peloponnese, Greece) revealed by fluvial landscape morphometry

Interactions between plutonism and detachments during metamorphic core complex formation, Serifos Island (Cyclades, Greece)

Rapid spatiotemporal variations in rift structure during development of the Corinth Rift, central Greece

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