Neogene–Quaternary tectonic stratigraphy of the eastern Southern Alps, NE Italy

Caputo, Riccardo; Poli, Maria Eliana; Zanferrari, Adriano

doi:10.1016/j.jsg.2010.06.004

Cited by 51 publications

(86 citation statements)

References 54 publications

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“…2A). This fault is correlative with the inferred structure known in literature as the Sirmione-Garda fault (Carton and Castaldini, 1985, and references therein). Pliocene-Pleistocene seismic refl ectors in the Lake Garda area are poorly imaged in the available seismic profi les, but some disturbance along the Sirmione Fault seems to occur up to the level of the R surface (base of the PS2, ca.…”

Section: Southern Alps Structuressupporting

confidence: 76%

“…4.0 Ma. The intra-Zanclean event can be interpreted according to Caputo et al (2010) as a period of decoupling along the basal detachment layer of the Apennines critical taper, during which the convergence between the Apennines and Alps was accommodated by the frontal propagation of the Apennines thrusts, in agreement with what was observed in the subsurface (Ghielmi et al, 2010). The oldest event of contractional deformation observed in the SB1 conglomerate by Picotti et al (1997) is parallel to the direction of the Northern Apennine migration, suggesting that, after the initial intra-Zanclean propagation of the Apennines thrusts, the stress was transferred through the Adria plate foreland and accommodated by the Alpine margin.…”

Section: Discussionmentioning

confidence: 99%

“…6A). In general, the solution pits occur on opposite poles of the pebble surfaces according to the orientation of the maximum compressional stress parallel to their long axis (Caputo et al, 2010, and references therein). Striae and grooves on pebble surfaces vary from parallel to curved on fl at surfaces.…”

Section: Structural Geologymentioning

confidence: 99%

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Evidence for late Alpine tectonics in the Lake Garda area (northern Italy) and seismogenic implications

Scardia

Festa

Monegato

et al. 2014

Geological Society of America Bulletin

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We investigated the recent evolution of the Po Plain-Alps system by integrating subsurface geophysical data from the Po Plain with new stratigraphic and structural observations from the Southern Alps margin. Inversion of structural data and chronology provided by stratigraphic constraints led to the defi nition of three tectonic events since the Pliocene, namely, the intra-Zanclean, the Gelasian, and the Middle Pleistocene, driven by an axis of maximum compression formerly oriented NE (intra-Zanclean) and then to the NNW (Gelasian and Middle Pleistocene). The associated deformation has been accommodated by two sets of faults consisting of NNE-trending thrust faults, mostly represented in the western sector of Lake Garda, and NW-trending strike-slip faults, observed in the southern and eastern sectors. The interplay between these two sets of faults is interpreted to produce short (<10 km length) thrust ramps activated in left transpression, bounded by longer (30-60 km) transfer faults activated in a right-lateral strike-slip motion. Based on this structural model, we infer moderate seismicity (M w < 6) associated with the NNE-directed thrusts and stronger earthquakes (also M w > 6.5) along the NW-trending strike-slip faults. In this framework, the newly defi ned Nogara fault and the Sant'Ambrogio fault, all pertaining to the NW-trending system, are regarded as potential candidates for the seismogenic source of the January A.D. 1117 event, the most destructive earthquake in the Po Plain.

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Section: Southern Alps Structuressupporting

confidence: 76%

Section: Discussionmentioning

confidence: 99%

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Evidence for late Alpine tectonics in the Lake Garda area (northern Italy) and seismogenic implications

Scardia

Festa

Monegato

et al. 2014

Geological Society of America Bulletin

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“…The geological map of Jurkovšek (1986) was later updated by Buser & Draksler (1993) and Buser (2009). The structure of this region is rather complex due to the Alpine tectonics (Doglioni & Bosellini 1987;Poli & Zanferarri 1995;Placer 1999;Castellarin & Cantelli 2000): the Late Cretaceous to Paleogene NE-vergent Dinaric thrusts partially overlap with Neogene N-verging Alpine thrusts (Doglioni & Bosellini 1987;Placer 1999Placer , 2008Kastelic et al 2008), both being further cut and displaced by dextral strike-slip faults active since the Pliocene (Castellarin et al 2006;Vrabec & Fodor 2006;Kastelic et al 2008;Caputo et al 2010;Kastelic & Carafa 2012). In this complex array of structural features, the Tamar Valley area belongs to the informal "Tamar" tectonic block of the Southern Alps, which is separated from the Krn tectonic block by the Resia-Val Coritenza backthrust (Cousin 1981;Venturini & Carulli 2002;Figs.…”

Section: Geological Settingmentioning

confidence: 99%

Paleogeographic significance of Upper Triassic basinal succession of the Tamar Valley, northern Julian Alps (Slovenia)

Gale¹,

Celarc²,

Caggiati³

et al. 2015

Geologica Carpathica

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Abstract:The Julian Alps (western Slovenia) structurally belong to the eastern Southern Alps. The Upper Triassic succession mostly consists of shallow water platform carbonates of the Dolomia Principale-Dachstein Limestone system and a deep water succession of the Slovenian Basin outcropping in the southern foothills of the Julian Alps. In addition to the Slovenian Basin, a few other intraplatform basins were present, but they remain poorly researched and virtually ignored in the existing paleogeographic reconstructions of the eastern Southern Alps. Herein, we describe a deepening-upward succession from the Tamar Valley (north-western Slovenia), belonging to the Upper Triassic Tarvisio Basin. The lower, Julian-Tuvalian part of the section comprises peritidal to shallow subtidal carbonates (Conzen Dolomite and Portella Dolomite), and an intermediate carbonate-siliciclastic unit, reflecting increased terrigenous input and storm-influenced deposition (Julian-lowermost Tuvalian shallow-water marlstone and marly limestone of the Tor Formation). Above the drowning unconformity at the top of the Portella Dolomite, Tuvalian well-bedded dolomite with claystone intercalations follows (Carnitza Formation). The latter gradually passes into the uppermost Tuvalian-lowermost Rhaetian bedded dolomite with chert and slump breccias, deposited on a slope and/or at the toe-of-slope (Bača Dolomite). Finally, basinal thin-bedded bituminous limestone and marlstone of Rhaetian age follow (Frauenkogel Formation). The upper part of the Frauenkogel Formation contains meter-scale platform-derived limestone blocks, which are signs of platform progradation. The Tarvisio Basin may have extended as far as the present Santo Stefano di Cadore area, representing a notable paleogeographic unit at the western Neotethys margin.

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“…Tectonic features provided by Placer (1981Placer ( , 2008Placer ( , 2015, Placer, Vrabec, and Celarc (2010), Del Ben, Finetti, Rebez, and Slejko (1991), Busetti et al (2010aBusetti et al ( , 2010bBusetti et al ( , 2013, Caputo, Poli, and Zanferrari (2010), Carulli (2011), Furlani et al (2011) have been considered and revised.…”

Section: Methodsmentioning

confidence: 99%

Geology of the Classical Karst Region (SW Slovenia–NE Italy)

et al. 2016

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The paper aims to present the geology of the western part of the Classical Karst (NW Dinarides), located at the border between Slovenia and Italy. The work is based on archive, published and new data collected by Slovenian and Italian researchers within several scientific national and Cross Border Cooperation projects. The map, produced at a scale of 1:50,000, summarizes the lithological and structural setting and is supplemented by three geological cross-sections of the study area.ARTICLE HISTORY

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Neogene–Quaternary tectonic stratigraphy of the eastern Southern Alps, NE Italy

Cited by 51 publications

References 54 publications

Evidence for late Alpine tectonics in the Lake Garda area (northern Italy) and seismogenic implications

Evidence for late Alpine tectonics in the Lake Garda area (northern Italy) and seismogenic implications

Paleogeographic significance of Upper Triassic basinal succession of the Tamar Valley, northern Julian Alps (Slovenia)

Geology of the Classical Karst Region (SW Slovenia–NE Italy)

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