Tectonic evolution of Pliocene–Pleistocene wedge-top basins of the southern Apennines: new constraints from magnetic fabric analysis

Abstract

<jats:p>In the last decades, multidiscipline investigation of the Apennine mountain belt of peninsular Italy has provided fundamental insights into the genesis and evolution of wedge-top basins. In this study, we focus on shallow-water to continental, Pliocene–Quaternary basins that formed on top of the southern Apennine allochthonous wedge after its emplacement onto a large foreland carbonate platform domain (Apulian Platform). The wedge-top basins analyzed in this study are mostly asymmetric, being bounded to the north by a normal fault showing evidence of synsedimentary activity. The basin successions are generally deformed by open folds and reverse faults resulting from shortening coeval with the sedimentation of the Lower Pliocene to lower–middle Pleistocene, upper part of the basin fill. Anisotropy of magnetic susceptibility data from the basin successions are consistent with a basin evolution characterized by an initial stage of tectonic subsidence controlled by roughly north-northwest–south-southeast-oriented extension, followed by southwest–northeast shortening active during subsequent basin filling. The latter shortening is marked by a dominant northwest–southeast mean trend of the magnetic lineation obtained from most sites in the study area and is interpreted as a result of upward propagation of deep-seated deformation (tectonic inversion) taking place within the buried Apulian Platform sitting in the footwall to the allochthonous wedge. Therefore, our results emphasize a complex interplay of different tectonic processes controlling wedge-top basin development.</jats:p>

Multiscale Fracture Analysis in a Reservoir-Scale Carbonate Platform Exposure (Sorrento Peninsula, Italy): Implications for Fluid Flow

“…Previous studies focused on these carbonates because of their analogies (in terms of age, lithology, facies, texture, and mechanical layers thickness) with the Val D' Agri and Tempa Rossa reservoir units of the Basilicata region [14,15,[27][28][29][30][31][32]. These oil reservoirs are trapped within the buried Apulian Platform carbonates by broad antiform folds deriving from thick-skinned inversion [33][34][35]. Mechanical and stratigraphic results from outcropping analogues could provide an important tool to understand fluid flow processes in the reservoirs, although the different burial depth conditions must be considered.…”

Fifty Years of Palaeomagnetic Studies in the Institute of Geophysics, Polish Academy of Sciences

“…He expanded study of European Variscans further to the west with his thesis concerning palaeomagnetism and tectogenesis of European Variscans of Northern France and Southern Belgium Szaniawski et al 2003;Averbuch et al 2002Averbuch et al , 2006Lacquement et al 2005). After finishing of his thesis he performed interdisciplinary study in the Holy Cross Mts (Szaniawski 2008;Szaniawski and Lewandowski 2009;Szaniawski et al 2011) and Carpathians in cooperation with the Geological Faculty of Warsaw University, Polish Geological Institute, and universities in Padua and Naples (Italy) (Grabowski et al 2009Mazzoli et al 2010;Zattin et al 2011;Szaniawski et al 2013, Andreucci et al 2013) as well as Apennines (Mazzoli et al 2012). He was a leader of one and co-author of three scientific projects, concerning the study of the Inner Carpathians in SE Poland and Western Ukraine, palaeomagnetism of Devonian carbonates in the Holy Cross Mts., Early Palaeozoic tectonics of the southern part of Holy Cross Mts, and palaeogeography of Baltica in the Early Palaeozoic based on the study of Bornholm deposits.…”

Tectono-sedimentary analysis using the anisotropy of magnetic susceptibility: a study of the terrestrial and freshwater Neogene of the Orava Basin

“…The application of the AMS method in orogeny-related basins and accretionary prisms predominantly concerns a structural interpretation of strain directions (e.g., Hrouda & Potfaj 1993;Parés et al 1999;Kanamatsu & Herrero-Bervera 2006;Hrouda et al 2009;Mazzoli et al 2012) and turbidity current directions (e.g., Tamaki et al 2015), while hemipelagic and pelagic sediments are examined for the occurrence and directions of bottom currents (e.g., Ellwood & Ledbetter 1977;Shor et al 1984;Joseph et al 1998;Park et al 2000;Baas et al 2007;Parés et al 2007). The sedimentological analysis supported by AMS measurements has also been done in a variety of sedimentary settings, namely: deep sea fans and turbidity deposits (von Rad 1970), deep-sea mass transport deposits (Novak et al 2014), alluvial fine-grained sediments (Garcés et al 1996;Park et al 2013), pyroclastic density currents and lahar deposits (Biró et al 2015;Ort et al 2015), as well as glacial sediments (Eyles et al 1987;Gravenor & Wong 1987).…”