The interaction of extensional and contractional deformations in the outer zones of the Central Apennines, Italy

Scisciani, Vittorio; Tavarnelli, Enrico; Calamita, Fernando

doi:10.1016/s0191-8141(01)00164-x

Cited by 122 publications

(49 citation statements)

References 30 publications

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“…The stratigraphic succession includes a 2 km-thick sequence of Cretaceous to Miocene carbonate units, which are related to different depositional settings (platform and slope/ramp) originally pertaining to the northernmost sector of the Apulian Platform realm. The Apulian carbonate units are overlain by siliciclastic deposits of Messinian-to-Pleistocene age originally deposited within the PeriAdriatic foredeep basin of the central Apennines fold-and-thrust belt (Scisciani et al, 2002). According to Ghisetti and Vezzani (2002) and Agosta et al (2009), the development of the Majella thrust-related anticline occurred during the Middle-to-Late Pliocene.…”

Section: Geological Setting Lithological Description and Rocks Charamentioning

confidence: 99%

Deformation bands in porous carbonate grainstones: Field and laboratory observations

Cilona

Baud

Tondi

et al. 2012

Journal of Structural Geology

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a b s t r a c tRecent field-based studies documented deformation bands in porous carbonates; these structures accommodate volumetric and/or shear strain by means of pore collapse, grain rotation and/or sliding. Microstructural observations of natural deformation bands in carbonates showed that, at advanced stages of deformation, pressure solution helps to reduce the grain size, enhancing comminuted flow and forming narrow cataclastic zones within the bands. In contrast, laboratory studies on the mechanics of deformation bands in limestones identified grain crushing, pore collapse and mechanical twinning as the micromechanisms leading to strain localization.Here, we present a multidisciplinary field and laboratory study performed on a Cretaceous carbonate grainstone to investigate the microprocesses associated to deformation banding in this rock. A quantitative microstructural analysis, carried out on natural deformation bands aimed at defining the spatial distribution of pressure solutions, was accompanied by a force chain orientation study. Two sets of triaxial experiments were performed under wet conditions on selected host rock samples. The deformed samples often displayed a shear-enhanced compaction behavior and strain hardening, associated with various patterns of strain localization.We constrained the pressure conditions at which natural deformation bands developed by reproducing in laboratory both low and high angle to the major principal stress axis deformation bands. The comparison among natural and laboratory-formed structures, allowed us to gain new insights into the role, and the relative predominance, of different microprocesses (i.e. microcracking, twinning and pressure solution) in nature and laboratory.

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Section: Geological Setting Lithological Description and Rocks Charamentioning

confidence: 99%

Deformation bands in porous carbonate grainstones: Field and laboratory observations

Cilona

Baud

Tondi

et al. 2012

Journal of Structural Geology

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“…Gran Sasso Range (GSR), where the LNGS is located, represents the northernmost front of the Abruzzi Apennines (Scisciani et al, 2002;Sani et al, 2004;Scrocca et al, 2005;Billi and Tiberti, 2009). Structural elements are represented by a complex system of overturned anticlines and related thrusts (Vezzani and Ghisetti, 1998;Ghisetti and Vezzani, 1999;Speranza et al, 2003;Calamita et al, 2006).…”

Section: The Geology Framework Of Central Italymentioning

confidence: 99%

U and Th content in the Central Apennines continental crust: A contribution to the determination of the geo-neutrinos flux at LNGS

Coltorti

Boraso

Mantovani

et al. 2011

Geochimica et Cosmochimica Acta

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“…The Maiella Massif represents the outermost outcropping carbonate anticline of the Central Apennines, involving Early Cretaceous-Miocene carbonate platform and slope-basin successions (e.g., Donzelli, 1969;Patacca and Scandone, 1989;Festa et al, 2014, and references therein). The Maiella anticline is related to the emplacement of a Pliocene-early Pleistocene NW-SE/NNE-SSW-trending curved frontal thrust, buried beneath Mio-Pliocene siliciclastic deposits and Molise allochthonous Units (e.g., Scisciani et al, 2002;Pizzi, 2003). Along the Taranta Valley the Paleocene-upper Oligocene carbonate ramp succession is spectacularly exposed and results affected by E-W prethrusting conjugate normal fault systems ( Fig.…”

Section: Geological and Structural Settingmentioning

confidence: 99%

“…The Apennines are a Neogene-Quaternary foreland-verging fold-and-thrust belt, showing a complex structural arrangement derived from the interaction between contractional structures and pre-existing extensional faults (e.g., Coward et al, 1999;Scisciani et al, 2002;Tozer et al, 2002;Butler et al, 2006;Calamita et al, 2011;Scisciani, 2009;Di Domenica et al, 2014a, b;Pace et al, 2014;Cardello and Doglioni, 2015). The orogenesis involved Triassic-toMiocene sedimentary successions related to different basin and platform paleogeographic domains of the Adria Mesozoic paleomargin (e.g., Ciarapica and Passeri, 2002;Patacca and Scandone, 2007).…”

Section: Geological and Structural Settingmentioning

confidence: 99%

Defining a mid-Holocene earthquake through speleoseismological and independent data: implications for the outer Central Apennines (Italy) seismotectonic framework

Domenica

Pizzi

2017

Solid Earth

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Abstract. A speleoseismological study has been conducted in the Cavallone Cave, located in the easternmost carbonate sector of the Central Apennines (Maiella Massif), in a seismically active region interposed between the post-orogenic extensional domain, to the west, and the contractional one, to the east. The occurrence of active "silent normal faults", to the west, close to blind thrusts, to the east, raises critical questions about the seismic hazard for this transitional zone. Large collapses of cave ceilings, fractures, broken speleothems with new re-growing stalagmites on their top, preferential orientation of fallen stalagmites and the absence of thin and long concretions have been observed in many portions of the karst conduit. This may indicate that the cave suffered sudden deformation events likely linked to the occurrence of past strong earthquakes. Radiocarbon dating and, above all, the robust correspondence with other coeval on-fault and off-fault geological data collected in surrounding areas outside the cave, provide important constraints for the individuation of a mid-Holocene paleoearthquake around 4.6-4.8 kyr BP. On the basis of the available paleoseismological data, possible seismogenic sources can be identified with the Sulmona normal fault and other active normal fault segments along its southern prosecution, which recorded synchronous strong paleoevents. Although the correlation between speleotectonic observations and quantitative modeling is disputed, studies on possible effects of earthquake on karstic landforms and features, when corroborated by independent data collected outside caves, can provide a useful contribution in discovering past earthquakes.

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The interaction of extensional and contractional deformations in the outer zones of the Central Apennines, Italy

Cited by 122 publications

References 30 publications

Deformation bands in porous carbonate grainstones: Field and laboratory observations

Deformation bands in porous carbonate grainstones: Field and laboratory observations

U and Th content in the Central Apennines continental crust: A contribution to the determination of the geo-neutrinos flux at LNGS

Defining a mid-Holocene earthquake through speleoseismological and independent data: implications for the outer Central Apennines (Italy) seismotectonic framework

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