Morphometric analysis and amino acid geochronology of uplifted shorelines in a tectonic region near reggio Calambria, South Italy

Dumas, Bernard; Guérémy, Pierre; Hearty, Paul J.; Lhénaff, René; Raffy, Jeannine

doi:10.1016/0031-0182(88)90045-4

Cited by 38 publications

(20 citation statements)

References 12 publications

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“…Tectonic upheaval during the Pleistocene affects the Crotone basin in multiple ways, which are generally consistent with the extension and uplift reported throughout Calabria [ Dumas et al , 1988; Westaway , 1993; Tortorici et al , 1995; Cucci and Cinti , 1998; Zecchin et al , 2004b; Dewez et al , 2008]. The most dramatic local phenomenon is the uplift of the Sila Massif.…”

Section: Discussionsupporting

confidence: 77%

Arc‐parallel strain in a short rollback‐subduction system: The structural evolution of the Crotone basin (northeastern Calabria, southern Italy)

Reitz

Seeber

2012

Tectonics

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[1] Calabria, located in southern Italy, is the exposed part of the forearc in the Ionian/Tyrrhenian subduction-rollback boundary. We present a tectonic model for the evolution of Calabria during the last 12 Ma that incorporates the structure and stratigraphy of the Crotone basin. At the re-initiation of rollback, we document listric normal faults that accommodated a deep-rooted extensional regime. Extension ceased in the Tortonian and did not continue throughout rollback. The middle Tortonian to early Messinian is characterized by distal sedimentation despite rapid rollback. Westward verging thrusts in Tortonian sediments and olistrostrome deposits within the Messinian section can be explained by instabilities in the accretionary wedge during the Messinian salinity crisis. Tectonic quiescence returned to the basin after the crisis and continued until a north-south shortening event in the middle Pliocene. Our kinematic data and new evidence of two basin inversions suggest arc-parallel shortening of the forearc. We propose that this shortening correlates with the passage of the forearc through the Apulia-Nubia narrow. This data also dispute previous interpretations of the Crotone basin as a pull-apart or transtensional basin. The identification of the main structures in the Crotone basin suggest a shift from quiescence to upheaval, beginning with Pliocene arc-parallel shortening associated with the passage of the forearc through the Apulia-Nubia narrow and continuing until today.Citation: Reitz, M. A., and L. Seeber (2012), Arc-parallel strain in a short rollback-subduction system: The structural evolution of the Crotone basin (northeastern Calabria, southern Italy), Tectonics, 31, TC4017,

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Section: Discussionsupporting

confidence: 77%

Arc‐parallel strain in a short rollback‐subduction system: The structural evolution of the Crotone basin (northeastern Calabria, southern Italy)

Reitz

Seeber

2012

Tectonics

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“…The Calabrian Arc was affected by uplift since the Late Pliocene, and at a faster rate after w0.8 Ma (Dumas et al, 1982(Dumas et al, , 1988(Dumas et al, , 1999Ghisetti, 1984Ghisetti, , 1992Westaway, 1993;Miyauchi et al, 1994;Monaco and Tortorici, 2000;Olivetti et al, 2012). Regional uplift is interpreted as an isostatic response to slab break-off (Westaway, 1993;Wortel and Spakman, 2000), or as a result of the convective removal of deep roots and decoupling of the Calabria forearc from the subducting plate (Doglioni, 1991;Gvirtzman and Nur, 2001).…”

Section: Regional Settingmentioning

confidence: 99%

Pattern and rate of post-20 ka vertical tectonic motion around the Capo Vaticano Promontory (W Calabria, Italy) based on offshore geomorphological indicators

Pepe

Bertotti

Ferranti

et al. 2014

Quaternary International

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This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. a b s t r a c tThe magnitude and rate of Late PleistoceneeHolocene vertical tectonic movements offshore of the Capo Vaticano Promontory (western Calabria, southern Italy) have been measured on the basis of the presentday depth variations of the edges of submerged depositional terraces (and associated abrasion platforms) that formed below the storm-wave base, during the sea level stillstand of the Last Glacial Maximum (LGM). These depositional features, represented by submerged prograding wedges and an associated terrace-shaped upper boundary, have been identified in high-resolution seismic reflection profiles acquired along the continental shelf and the upper slope of the promontory, and are referred to in this study as "Lowstand Infralittoral Prograding Wedges (LIPWs)". Our new data and methods provide evidence that LIPWs can be used as geomorphological indicators of vertical movements in offshore settings with well controlled uncertainty. Removal of the non-tectonic component of vertical changes using an ice-volume equivalent eustatic sea level compilation indicates w11 (AE3.2) m of uplift and w25 (AE3.2) m of subsidence, from southwest to northeast, along the promontory, over a distance of w22 km, during the post-LGM. The resulting uplift and subsidence rates (including both regional and local components) for the last 20.350 (AE1.35) years are 0.54 (AE0.2) mm/y and 1.23 (AE0.25) mm/y, respectively. These results are consistent with longer-term estimates based on uplifted 215e82 ka old coastal terraces and Late Holocene shorelines. This integration of offshore and coastal markers indicates a pattern of vertical movements characterized by a marked asymmetry associated with a northeast down tilt of the Capo Vaticano Promontory. The calculated tilt rate increases by one order of magnitude during the post-LGM in respect to the time interval from 215 to 82 BP. Displacement associated with the NWeSE striking normal fault that bound the Capo Vaticano Promontory to the Gioia Tauro Basin ended in the (?) Pleistocene, and thus does not contribute to the tilt of the promontory at least during the last 215 ka.

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“…There is a shoreline measured at 45 m near the Valanidi, which could be the equivalent of strandline I1 of the Catona graben area (Figure 1). On the contrary, topography includes two platforms north of the Catona between the 47 m shoreline (terrace 11) and the 85 rn one (terrace V), while in the Reggio region only one shoreline can be located between 45 and 83 m, at 60 m (Dumas et al, 1988). Is the lack of one shoreline due to destruction by erosion or to the bad conditions for observation?…”

Section: General Uplgt With Little Diflerential Movementmentioning

confidence: 94%

“…Some of these data concern Glycymeris shells taken from the Strombus deposits. With a ratio between 046 and 0.39, these deposits correspond to stage 5e of the isotopic chronology Dumas et al, 1988). This is the oldest peak of the last Interglacial period centred around 125 k a~~.…”

Section: General Uplgt With Little Diflerential Movementmentioning

confidence: 99%

Rapid uplift, stepped marine terraces and raised shorelines on the Calabrian coast of Messina Strait, Italy

Dumas

Guérémy

Lhénaff

et al. 1993

Earth Surf Processes Landf

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A series of 26 Quaternary shorelines, stepped between present sea level and 556 m, are studied. They are part of the flight of marine terraces of the Aspromonte region. The shorelines were determined using three geomorphological models: wave-cut platforms and gravel-built terraces associated with their sea-cliff foot, and observations of lateral changes between marine terraces and fluvial terraces. The elevation of the sea-cliff foot is either measured directly, by exposure in cross-section, or by estimation from geomorphological patterns. With caution, we connect the different landmarks of the shorelines which are discontinuous because of destruction between interfluves or because they are overlain by torrential deposits.The results of mapping show that there are few differential movements from one transect to another and mean uplift rate is 98 cm ka-'. This rate is calculated on the basis of a correlation of the area studied with the Ravagnese Tyrrhenian site, 125 m high, whose date is isotopic substage 5e. Middle and Late Quaternary tectonic activity leads to faulting, slight folding and warping but some scarps associated with faults are actually ancient sea cliffs.

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Morphometric analysis and amino acid geochronology of uplifted shorelines in a tectonic region near reggio Calambria, South Italy

Cited by 38 publications

References 12 publications

Arc‐parallel strain in a short rollback‐subduction system: The structural evolution of the Crotone basin (northeastern Calabria, southern Italy)

Arc‐parallel strain in a short rollback‐subduction system: The structural evolution of the Crotone basin (northeastern Calabria, southern Italy)

Pattern and rate of post-20 ka vertical tectonic motion around the Capo Vaticano Promontory (W Calabria, Italy) based on offshore geomorphological indicators

Rapid uplift, stepped marine terraces and raised shorelines on the Calabrian coast of Messina Strait, Italy

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