A computer fit of Corsica and Sardinia against southern France

Westphal, M.; Bardon, C.; Bossert, A.; Hamzeh, R.

doi:10.1016/0012-821x(73)90046-0

Cited by 30 publications

(10 citation statements)

References 7 publications

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“…These data demonstrate that precise reconstruction on the basis of only bathymetric contours (Westphal et al, 1973) is insufficient.…”

Section: Geometry Of Openingmentioning

confidence: 86%

“…A conventional model suggests a single 40°-50°c ounterclockwise rotation of the block with a pole of rotation close to the Gulf of Genoa. The authors used bathymetric assemblages and paleomagnetic data to arrive at this conclusion (Carey, 1958;Nairn et al, 1968;Alvarez, 1972;Le Pichon et al, 1971;Westphal et al, 1973). In this model Corsica is closed to Provence and Sardinia is closed to the Gulf of Lion.…”

Section: Geometry Of Openingmentioning

confidence: 99%

See 1 more Smart Citation

Structure and Evolution of the Mediterranean Basins

Biju-Duval¹,

Letouzey²,

Montadert³

1978

Initial Reports of the Deep Sea Drilling Project

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In this paper we attempt to reconstruct the general history of the Alpine-Mediterranean realm on the basis of geological crosssections onland and offshore, general mapping of the basins and the main structural units of the Mediterranean area, and geophysical data. The history of the Alpine-Mediterranean realm is related to the plate movements of Europe and Africa and associated with the opening of the Atlantic. After a first stage with a broad oceanic domain (Tethys), the opening of a proto-eastern Mediterranean and the formation of active margins south of Europe modified the physiography until the stage of continental collision. The western and eastern Mediterranean basins differ. The western basins are very young: Oligocene-Miocene episutural and intracontinental marginal basins, recently rejuvenated (Tyrrhenian Sea) and always part of the Alpine orogenic belt. The eastern basins are remnants of a former much larger Mesozoic basin south of the still active Alpine belt. The Cyprus, Aegean, and Calabrian arcs are described successively. Diagrammatic sections and schematic maps show this Cenozoic evolution and a speculative history is presented.

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“…These data demonstrate that precise reconstruction on the basis of only bathymetric contours (Westphal et al, 1973) is insufficient.…”

Section: Geometry Of Openingmentioning

confidence: 86%

Section: Geometry Of Openingmentioning

confidence: 99%

Structure and Evolution of the Mediterranean Basins

Biju-Duval¹,

Letouzey²,

Montadert³

1978

Initial Reports of the Deep Sea Drilling Project

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“…At that time the more internal units (Ligurian oceanic domain), which were incorporated in the Apennine chain during the Late Cretaceous, formed a double verging orogenic wedge, related to northeastward subduction of the Adriatic‐Ionian lithosphere. The proposed position of the Corsica‐Sardinia block, located adjacent to southern France, was originally suggested by Argand [] and has been later confirmed by a large amount of geological, geophysical, and paleomagnetic evidences [ De Jong and Manzoni , ; De Jong et al ., ; Zijderveld et al ., ; Alvarez , ; Alvarez et al ., ; De Jong et al ., ; Westphal et al ., ; Montigny et al ., ; Burrus , ; Edel , ; Vigliotti et al ., ; Speranza et al ., ; Gattacceca et al ., ].…”

Section: Discussionmentioning

confidence: 99%

Paleomagnetic evidence for a post‐Eocene 90° CCW rotation of internal Apennine units: A linkage with Corsica‐Sardinia rotation?

et al. 2014

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We report on an extensive paleomagnetic study (36 sites) of the Tuscan Nappe succession from the Northern Apennines Arc, aimed to reconstruct the tectonic evolution of the internal sector of this chain. We analyzed Eocene pelagic foreland ramp deposits (Scaglia Toscana Formation) and Oligocene-lower Miocene siliciclastic turbidites (Macigno and Falterona Formations). Paleomagnetic results show that the internal sector of the Northern Apennines underwent large counterclockwise (CCW) rotations with respect to the Adria-Africa foreland. A decrease in the rotation magnitude was observed from the southern to the northern sector of the arc (from 91 to 36°). This trend is opposite to that observed in the more external units of Northern Apennines and demonstrates that the oroclinal bending model, which has been proposed for the external units of the chain, is not appropriate to explain the evolution of the internal sector of the arc. On the basis of the observed paleomagnetic pattern, we propose a new tectonic model in which the Tuscan and Falterona-Cervarola units in the southern area were first rotated CCW along with the Corsica-Sardinia block during its lower Miocene rotational drifting and were later involved in the main phases of rotational emplacement and translation toward the outermost sector (Umbria domain), thus yielding the final curved shape of the Northern Apennines chain. Data from this study represent the first paleomagnetic evidence of the influence of the Corsica-Sardinia CCW rotation in the Apennines orogenic wedge deformation, in the general framework of the geodynamic evolution of the Central Mediterranean subduction system.

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“…A counter-clockwise rotation of the Corso-Sardinian block relative to the Western European plate producing the opening of the Liguro-Provençal Basin took place during the Neogene rifting event, probably in the early Miocene (Alvarez, 1972;Westphal et al, 1973;Arthaud and Matte, 1977a;Matte, 2001;Gattacceca et al, 2007). Different plate tectonic models have been used to describe this event (Alvarez et al 1973;de Jong et al 1973;Manzoni, 1975;Cohen, 1980;Montigny et al 1981;Vigliotti et al, 1990;Speranza et al 2002;Rollet et al, 2002;Ferrandini et al, 2003).…”

Section: Effects Of Neogene Rifting Eventmentioning

confidence: 94%