Active fragmentation of Adria, the north African promontory, central Mediterranean orogen

Oldow, John S.; Ferranti, Luigi; Lewis, D. S.; Campbell, James; D’Argenio, B.; Catalano, Raimondo; Pappone, Gerardo; Carmignani, L.; Conti, Paolo; Aiken, Carlos L. V.

doi:10.1130/0091-7613(2002)030<0779:afoatn>2.0.co;2

Cited by 166 publications

(113 citation statements)

References 21 publications

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“…They show that the central and southern parts of the AdCP are very active seismotectonic belts, with the predominant northward direction of movement. This is to a large degree in agreement also with the results of measurements obtained within a broader Adriatic frame [36][37][38].…”

Section: Structural Datasupporting

confidence: 81%

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The influence of Late Cretaceous synsedimentary deformation on the Cenozoic structuration of the middle Adriatic, Croatia

Prtoljan

Jamičić

Tešović³

et al. 2007

Geodinamica Acta

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The primordially structural-lithofacial relationships in the Adriatic Carbonate Platform (AdCP) of Croatia were formed by a Late Cretaceous synsedimentary tectonics. During Cenomanian, an extensional tectonic regime differentiated AdCP into several kilometres large paleoenvironmental segments which behaved as individual depocenteres. The latest Cenomanian and earliest Turonian were tectonically relatively quiet periods during which sediments only recorded a relative sea-level rise. Compression commenced during the middle Santonian and formed first (NW-SE) gentle folds in the frontal part of the Split-Dubrovnik thrust. These folds had amplitudes of tens to hundreds of metres and are up to ten kilometres in strike. The apical parts of the anticlines were dominated by shallow-marine deposition with short emergences simultaneously, slope deposition of pelagic sediments took place in the synclines. By the end of the Campanian, compression weakened and younger sediments infilled former depressions while the deposition ended in the Adriatic hinterland of Croatia. During the Maastrichtian the compression recommenced and the index of older folds increased while new folds and reverse faults were formed. Such deformations created a differentiated morphology at the surface subsequently overlaid by Palaeogene sediments. Clastic sediments accumulated indeed in this paleodepression during the Palaeogene and Miocene-Quaternary, forming favourable structural conditions for hydrocarbon generation.

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Section: Structural Datasupporting

confidence: 81%

“…6). Recently increased seismic activity associated with reverse movement was documented within this shear zone [38,48].…”

Section: Structural Datamentioning

confidence: 99%

The influence of Late Cretaceous synsedimentary deformation on the Cenozoic structuration of the middle Adriatic, Croatia

Prtoljan

Jamičić

Tešović³

et al. 2007

Geodinamica Acta

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“…GPS measurements show slow to very slow surface velocities around the bend of the Western Alps (e.g. Caporali & Martin, 2000;Oldow et al 2002;Serpelloni et al 2005). GPS velocities are estimated 3 to 5 mm.y -1 on the period 1995-1998, and decrease with the duration of measurements (Calais 1999;Calais et al 2000;Vigny et al 2002).…”

Section: Introduction and Current Seismotectonic Settingmentioning

confidence: 99%

Quantification of strain rate in the Western Alps using geodesy: comparisons with seismotectonics

et al. 2008

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The contrasted seismotectonic regime of the Western Alps is characterized by radial extension in the high chain, combined with local compressive areas at the foothill of the belt, and everywhere occurrence of transcurrent tectonics. Here, we compare this seismotectonic regime to a large-scale compilation of GPS measurements in the Western Alpine realm. Our analysis is based on the raw GPS database, which give the measured velocity field with respect to the so called "stable Europe", and an interpolated velocity field, in order to smooth the database on a more regular mesh. Both strain rate and rotational components of the deformation are investigated. The strain rate field shows patch-like structure, with extensional areas located in the core and to the North of the belt and compressional areas located in its periphery. Although the GPS deformation fields (both raw and interpolated) are more spatially variable than the seismotectonic field, a good qualitative correlation is established with the seismotectonic regionalization of the deformation. The rotation rate fields (both raw and interpolated) present counterclockwise rotations in the innermost part of the belt and a surprising continuous zone of clockwise rotations following the arc-shape geometry of the Western Alps along their external border. We interpret this new result in term of a counterclockwise rotation of the Apulia plate with respect to the stable Europe. This tectonic scheme may induce clockwise rotations of crustal block along the large strike-slip fault system, which runs in the outer part of the belt, from the Rhône-Simplon fault to the Belledonne fault and Southeastward, to the High-Durance and Argentera fault.

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“…[70] Corsica (CRC): No resolvable movement of one continuously recording site on Corsica with respect to Europe [Nocquet and Calais, 2003;Oldow et al, 2002] suggests little deformation of the region surrounding this point, and we assume that shortening does not occur across the island: 0 AE 2 mm/yr.…”

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confidence: 99%

Tectonics, climate, and mountain topography

et al. 2012

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[1] By regressing simple, independent variables that describe climate and tectonic processes against measures of topography and relief of 69 mountain ranges worldwide, we quantify the relative importance of these processes in shaping observed landscapes. Climate variables include latitude (as a surrogate for mean annual temperature and insolation, but most importantly for the likelihood of glaciation) and mean annual precipitation. To quantify tectonics we use shortening rates across each range. As a measure of topography, we use mean and maximum elevations and relief calculated over different length scales. We show that the combination of climate (negative correlation) and tectonics (positive correlation) explain substantial fractions (>25%, but <50%) of mean and maximum elevations of mountain ranges, but that shortening rates account for smaller portions, <25%, of the variance in most measures of topography and relief (i.e., with low correlations and large scatter). Relief is insensitive to mean annual precipitation, but does depend on latitude, especially for relief calculated over small ($1 km) length scales, which we infer to reflect the importance of glacial erosion. Larger-scale (averaged over length scales of $10 km) relief, however, correlates positively with tectonic shortening rate. Moreover, the ratio between small-scale and large-scale relief, as well as the relative relief (the relief normalized by the mean elevation of the region) varies most strongly with latitude (strong positive correlation). Therefore, the location of a mountain range on Earth with its corresponding climatic conditions, not just tectonic forcing, appears to be a key factor in determining its shape and size. In any case, the combination of tectonics and climate, as quantified here, can account for approximately half of the variance in these measures of topography. The failure of present-day shortening rates to account for more than 25% of most measures of relief raises the question: Is active tectonics overrated in attempts to account for present-day relief and exhumation rates of high terrain?

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Active fragmentation of Adria, the north African promontory, central Mediterranean orogen

Cited by 166 publications

References 21 publications

The influence of Late Cretaceous synsedimentary deformation on the Cenozoic structuration of the middle Adriatic, Croatia

The influence of Late Cretaceous synsedimentary deformation on the Cenozoic structuration of the middle Adriatic, Croatia

Quantification of strain rate in the Western Alps using geodesy: comparisons with seismotectonics

Tectonics, climate, and mountain topography

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