Alpine structural and metamorphic signature of the Sila Piccola Massif nappe stack (Calabria, Italy): Insights for the tectonic evolution of the Calabrian Arc

Rossetti, Federico; Faccenna, Claudio; Goffé, Bruno; Monié, Patrick; Argentieri, Alessio; Funiciello, R.; Mattei, Massimo

doi:10.1029/2000tc900027

Cited by 128 publications

(120 citation statements)

References 45 publications

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“…It should be noted that the sequence described here generally agrees with the classic picture of Amodio-Morelli et al (1976), which fi t our fi eld observations better than does the reinterpretation of Rossetti et al (2001Rossetti et al ( , 2004.…”

Section: Regional Geology Of Northern Calabriasupporting

confidence: 90%

Cold and old: The rock record of subduction initiation beneath a continental margin, Calabria, southern Italy

et al. 2012

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We present data from northern Calabria, in southern Italy, which show that subduction may have initiated beneath a continental margin east of the Corsica-Sardinia-Calabria block during the Eocene. Calabria lacks ophiolites (oceanic rocks) within the upper plate, which are the strongest evidence for intraoceanic subduction initiation. The structurally higher nappes of the Calabrian subduction complex include continental crustal material, a feature that is also inconsistent with intraoceanic subduction initiation. In addition, Calabria lacks an amphibolitefacies metamorphic sole, regarded by some as a consequence of intraoceanic subduction initiation in young oceanic lithosphere. The age of blueschist metamorphism, compared with ages of arc volcanism in Sardinia, indicates preservation of rocks subducted and accreted during or shortly after subduction initiation, precluding signifi cant subduction erosion. Peak subduction-related metamorphism reached blueschist facies, including rocks that apparently accreted early, during or shortly after subduction initiation. The protoliths of these rocks were ≥80 m.y. old at the time of subduction, indicating that subduction began in old and cold lithosphere along a continental margin. Subduction initiation here suggests that the serpentinization of the upper mantle, observed in the Tethyan rocks of Calabria, may have been important in weakening the oceanic lithosphere at the continental margin. Alpine subduction may have initiated in a similar manner along other reaches of the orogen.

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Section: Regional Geology Of Northern Calabriasupporting

confidence: 90%

Cold and old: The rock record of subduction initiation beneath a continental margin, Calabria, southern Italy

et al. 2012

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“…By analyzing the polarity of fault arrays in relation to regional detachment faults, Stewart and Argent (2000) concluded that the presence of an underlying detachment clearly favors fault systems, which are synthetic to the underlying detachment. If these conclusions are applied here, the geometry of the early stages of rifting in Calabria was controlled by regional, ductile-to-brittle, top-tothe-W simple shear extension, which has been previously recognized as responsible for attenuation of the orogenic crustal section (Rossetti et al, 2001.…”

Section: Structural Architecture Of the Crati Basinmentioning

confidence: 98%

The architecture of brittle postorogenic extension: Results from an integrated structural and paleomagnetic study in north Calabria (southern Italy)

Cifelli

Rossetti

Mattei

2007

Geological Society of America Bulletin

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An integrated structural and paleomagnetic study was carried out on NeogeneQuaternary clastic sedimentary sequences exposed in north Calabria to defi ne the brittle postorogenic evolution of the inner sector of the Calabrian arc. The structural, mineralogical, and magnetic fabric data presented in this paper suggest that the postorogenic basins of north Calabria originated and developed under an extensional tectonic regime that has been active since the middle Miocene. Results were used to defi ne the spatial and temporal evolution of the extensional fault systems in the framework of extensional processes active in the backarc region of the southeastward-migrating Apennine subduction system. Our data indicate that regional backarc extension operated in the brittle crust, and the data trace a continuous evolution from low-to high-angle extensional faulting. Paleomagnetic data show that this continuous extensional process was accompanied by complex interactions among faultbounded crustal blocks. In fact, the extensional domain is subdivided into different structural compartments, separated by the adjustment in the fault strike imposed by the regional rotation pattern.

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“…The causes of the fi rst cooling phase have been extensively discussed Wallis et al, 1993;Messina et al, 1996;Bonardi et al, 2001;Rossetti et al, 2001;Iannace et al, 2007), while causes and mechanisms of the second one have never been investigated.…”

Section: Introductionmentioning

confidence: 99%

Shallow burial and exhumation of the Peloritani Mountains (NE Sicily, Italy): Insight from paleothermal and structural indicators

Aldega

Corrado

Paolo

et al. 2010

Geological Society of America Bulletin

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We used vitrinite reflectance and mixed-layered clay minerals to investigate levels of diagenesis of the Oligocene-Miocene basin developed on the nappes of the Alpine orogen exposed in the Peloritani Mountains (NE Sicily). Paleothermal indicators were integrated with stratigraphic and structural analyses and published apatite fission-track and (U-Th-Sm)/He ages to define the late evolutionary stages of the Peloritani Mountains.This multi-method approach allowed us to reconstruct the paleogeothermal gradient of the basin in Oligocene-Miocene times, to constrain its burial evolution, and discriminate between areas where it has been affected by sedimentary and/or tectonic load. In the southern area of the basin, organic and inorganic thermal parameters increase as function of depth, suggesting that their evolution was ruled by sedimentary burial. They record a decrease in paleogeothermal gradient values marking the evolution of the basin from a forearc to a thrust-top setting during the convergence-collision process between the Calabria-Peloritani Arc and the African plate. On the other hand, in the northern edge of the basin, vitrinite reflectance values(0.46%–0.58%) indicate that the Thermal evolution of this area was controlled by tectonic burial related to late Langhian–early Serravallian out-of-sequence thrust tectonics.The tectonic overburden has been totally removed by extensional tectonics and/or erosion since the late Miocene. The short timespan at maximum temperature (<2 m.y.) elapsing between thrust stack emplacement and the beginning of tectonic overburden removal has allowed only vitrinite reflectance and thermochronological indicators to record this compressive reactivation

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Alpine structural and metamorphic signature of the Sila Piccola Massif nappe stack (Calabria, Italy): Insights for the tectonic evolution of the Calabrian Arc

Cited by 128 publications

References 45 publications

Cold and old: The rock record of subduction initiation beneath a continental margin, Calabria, southern Italy

Cold and old: The rock record of subduction initiation beneath a continental margin, Calabria, southern Italy

The architecture of brittle postorogenic extension: Results from an integrated structural and paleomagnetic study in north Calabria (southern Italy)

Shallow burial and exhumation of the Peloritani Mountains (NE Sicily, Italy): Insight from paleothermal and structural indicators

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