Relations between surface faulting and granite intrusions in analogue models of strike-slip deformation

Corti, Giacomo; Moratti, Giovanna; Sani, Federico

doi:10.1016/j.jsg.2005.05.011

Cited by 50 publications

(63 citation statements)

References 24 publications

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“…23a) (Román-Berdiel 1999;Bonini et al 2001;Corti et al 2003), transtension , strike-slip faulting (Fig. 23b) (Román-Berdiel et al 1997;Román-Berdiel 1999;Corti et al 2005;Holohan et al 2008b), transpression (Benn et al 1998(Benn et al , 2000, to pure compression (Fig. 23c, d) (Musumeci et al 2005;Mazzarini et al 2010;Montanari et al 2010a, b).…”

Section: Surface Deformation Relatedmentioning

confidence: 99%

“…Its viscosity is hence a constant at a given temperature and has been measured at *1-3 × 10 4 Pa s at room temperature (Table 2; e.g. Weijermars 1986;Corti et al 2005). As temperature varies, the viscosity of PDMS follows an Arrhenius law (Hailemariam and Mulugeta 1998;Cagnard et al 2006), i.e., it decreases exponentially with increasing temperature.…”

Section: "High" Viscosity Magmamentioning

confidence: 99%

“…Decreasing the viscosity of PDMS is achieved by mixing it with oleic acid, such as described by e.g. Corti et al (2005) and Reber et al (2013), although the PDMS-oleic acid mixture becomes sticky and challenging to handle. These two procedures provide an enlarged analogue magma viscosity range of between *7 × 10 3 and *5 × 10 5 Pa s, i.e.…”

Section: "High" Viscosity Magmamentioning

confidence: 99%

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Laboratory Modelling of Volcano Plumbing Systems: A Review

Galland

Holohan

Vries

et al. 2015

Advances in Volcanology

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We review the numerous experimental studies dedicated to unravelling the physics and dynamics of various parts of a volcanic plumbing system. Section 1 lists the model materials commonly used for model magmas or model rocks. We describe these materials' mechanical properties and discuss their suitability for modelling sub-volcanic processes. Section 2 examines the fundamental concepts of dimensional analysis and similarity in laboratory modelling. We provide a step-by-step explanation of how to apply dimensional analysis to laboratory models in order to identify fundamental physical laws that govern the modelled processes in dimensionless (i.e. scale independent) form. Section 3 summarises and discusses the past applications of laboratory models to understand numerous features of volcanic plumbing systems. These include: dykes, cone sheets, sills, laccoliths, caldera-related structures, ground deformation, magma/fault interactions, and explosive vents. We outline how laboratory models have yielded insights into the main geometric and mechanical controls on the development of each part of the volcanic

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Section: Surface Deformation Relatedmentioning

confidence: 99%

Section: "High" Viscosity Magmamentioning

confidence: 99%

Section: "High" Viscosity Magmamentioning

confidence: 99%

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Laboratory Modelling of Volcano Plumbing Systems: A Review

Galland

Holohan

Vries

et al. 2015

Advances in Volcanology

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“…In his experiments, Ramberg used a centrifuge model arrangement capable of reaching an acceleration of 4000 × g. Roman-Berdiel et al (1997) and Roman-Berdiel (1999) studied granite emplacement by injecting low-viscosity Newtonian silicone putty into a tank of sand. Processes such as granite intrusion under the influence of tectonic stresses (Mazzarini et al, 2010), interaction with coincident faults and fractures during transpression (Benn et al, 1998), and strike-slip (Corti et al, 2005) motion have also been considered. Laboratory experiments by Roman and Jaupart (2017) document the post-emplacement behaviour of mafic intrusions as they spread at a density interface and founder as they become denser than their surroundings.…”

Section: Magma Chamber To Plutonmentioning

confidence: 99%

A review of laboratory and numerical modelling in volcanology

Kavanagh¹,

Engwell²,

Martin³

2018

Solid Earth

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Abstract. Modelling has been used in the study of volcanic systems for more than 100 years, building upon the approach first applied by Sir James Hall in 1815. Informed by observations of volcanological phenomena in nature, including eyewitness accounts of eruptions, geophysical or geodetic monitoring of active volcanoes, and geological analysis of ancient deposits, laboratory and numerical models have been used to describe and quantify volcanic and magmatic processes that span orders of magnitudes of time and space. We review the use of laboratory and numerical modelling in volcanological research, focussing on sub-surface and eruptive processes including the accretion and evolution of magma chambers, the propagation of sheet intrusions, the development of volcanic flows (lava flows, pyroclastic density currents, and lahars), volcanic plume formation, and ash dispersal.When first introduced into volcanology, laboratory experiments and numerical simulations marked a transition in approach from broadly qualitative to increasingly quantitative research. These methods are now widely used in volcanology to describe the physical and chemical behaviours that govern volcanic and magmatic systems. Creating simplified models of highly dynamical systems enables volcanologists to simulate and potentially predict the nature and impact of future eruptions. These tools have provided significant insights into many aspects of the volcanic plumbing system and eruptive processes. The largest scientific advances in volcanology have come from a multidisciplinary approach, applying developments in diverse fields such as engineering and computer science to study magmatic and volcanic phenomena. A global effort in the integration of laboratory and numerical volcano modelling is now required to tackle key problems in volcanology and points towards the importance of benchmarking exercises and the need for protocols to be developed so that models are routinely tested against "real world" data.

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“…Richard and Cobbold (1989) and Pinnet and Cobbold (1992) analyzed strain partitioning mechanisms related to transpression due to oblique convergence. Likewise, Le Guerroué and Cobbold (2006) studied the influence of erosion and sedimentation on strike-slip faults, whereas Corti et al (2005), and α=15° between the layer boundary and the plate A, in order to favor the localization of deformation in this area. Within the silicone layer, second-order oblique discontinuities filled with sand were set out in models II and III considering β angles between them and the plate A of 100º and 130º, respectively (Fig.…”

Section: Introductionmentioning

confidence: 99%

Estructura neógena de la Precordillera Andina, Argentina: aportes de modelos análogos.

Oriolo

Cristallini

Japas

et al. 2015

Andgeo

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ABSTRACT. Analogue models combining different sets of preexisting structural weaknesses were developed to understand their evolution during regional ~ENE shortening. Strain analysis of simulations was performed with the GEODEF 1.1 software, a tool that allows to quantify deformation in plan view on the basis of displacement fields. Results showed up that regional NNE heterogeneities are reactivated as dextral reverse-slip structures, though NNE neoformed thrusts are also present. Likewise, dominant sinistral strike-slip motions have been obtained for reactivated second-order WNW structures whereas sinistral reverse-slip has been recorded for NW ones. Comparison of these results with structural, kinematic and paleomagnetic data supports partitioned dextral transpression for the northern Andean Precordillera since the Miocene. Moreover, models not only confirm sinistral strike-slip motions for WNW structures of the Precordillera but also suggest that they would represent preexisting crustal fabrics that were reactivated during the Andean orogeny. These cross-strike structures have played a significant role in the construction and evolution of the fold and thrust belt as they segmentate the activity of orogen-parallel structures. RESUMEN. Estructura neógena de la Precordillera Andina, Argentina: aportes de modelos análogos. Se llevaron a cabo una serie de modelos análogos en los que se combinaron diferentes sistemas de debilidades estructurales preexistentes a fin de entender su evolución vinculada a acortamiento regional en dirección ~ENE. El análisis de la deformación de las simulaciones fue realizado a través del software GEODEF 1.1, una herramienta que permite la cuantificación de la deformación en planta sobre la base de campos de desplazamiento. Los resultados obtenidos muestran que las heterogeneidades regionales de rumbo NNE se reactivan como estructuras dextrales inversas, si bien también se generan corrimientos neoformados de igual orientación. Asimismo, se obtuvieron desplazamientos de rumbo sinistral dominante para estructuras reactivadas de segundo orden de rumbo WNW, mientras que desplazamientos sinistrales inversos se registraron en aquellas de rumbo NW. La comparación de estos resultados con datos estructurales, cinemáticos y paleomagnéticos señala la existencia de transpresión dextral particionada para el precordillera norte desde el Mioceno. A su vez, los modelos no solo confirman los desplazamientos de rumbo sinistral para las estructuras WNW de la precordillera, sino que también sugieren que estas constituirían fábricas corticales preexistentes que fueron reactivadas durante la orogenia andina. Estas estructuras oblicuas han tenido un rol significativo en la construcción y evolución de la faja plegada y corrida, ya que segmentan la actividad de las estructuras paralelas al orógeno.

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Relations between surface faulting and granite intrusions in analogue models of strike-slip deformation

Cited by 50 publications

References 24 publications

Laboratory Modelling of Volcano Plumbing Systems: A Review

Laboratory Modelling of Volcano Plumbing Systems: A Review

A review of laboratory and numerical modelling in volcanology

Estructura neógena de la Precordillera Andina, Argentina: aportes de modelos análogos.

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