Compressional intracontinental orogens: Ancient and modern perspectives

Raimondo, Tom; Hand, Martin; Collins, William J.

doi:10.1016/j.earscirev.2013.11.009

Cited by 173 publications

(138 citation statements)

References 342 publications

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“…For brittle deformation dynamic similarity can be tested with the ratio between gravitational forces and frictional forces which can be considered an analogue to the Smoluchowsky number (S m ) defined by Ramberg (1981).…”

Section: Scalingmentioning

confidence: 99%

“…The experiments are scaled according to the criteria of geometrical, rheological, dynamical and kinematic similarity (Davy and Cobbold, 1991;Ramberg, 1981;Weijermars and Schmeling, 1986).…”

Section: Scalingmentioning

confidence: 99%

“…The mechanical properties of continental lithosphere are strongly heterogeneous in space, as documented by observations and suggested by mechanical models (Burov, 2011;Cloetingh et al, 2005;Gueydan et al, 2014;Ranalli, 1997). The reactivation of lithospheric heterogeneities controlled the evolution of intra-plate orogens in Iberia (Pyrenees, Spanish Central System, Iberian Range), Australia (Petermann and Alice Spring orogens), Central America (Laramide orogen), and Central Asia (Tian Shan) (Beaumont et al, 2000;Cerca et al, 2004;Cloetingh et al, 2005;Delvaux et al, 2013;Fernández-Lozano et al, 2011;Gorczyk et al, 2013;Kennett and Iaffaldano, 2013;Raimondo et al, 2014;Sainz and Faccenna, 2001). At lithospheric scale the nature of the reactivated heterogeneities is diverse and debated.…”

Section: Introductionmentioning

confidence: 95%

“…Intra-plate orogens are the result of continental plate interior deformation due to transmission of stresses at large distances from active plate boundaries (Raimondo et al, 2014;Vauchez et al, 1998).…”

Section: Introductionmentioning

confidence: 99%

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Asymmetric vs. symmetric deep lithospheric architecture of intra-plate continental orogens

Calignano

Sokoutis

Willingshofer

et al. 2015

Earth and Planetary Science Letters

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Section: Scalingmentioning

confidence: 99%

“…The experiments are scaled according to the criteria of geometrical, rheological, dynamical and kinematic similarity (Davy and Cobbold, 1991;Ramberg, 1981;Weijermars and Schmeling, 1986).…”

Section: Scalingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Asymmetric vs. symmetric deep lithospheric architecture of intra-plate continental orogens

Calignano

Sokoutis

Willingshofer

et al. 2015

Earth and Planetary Science Letters

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“…1; Gray, 1978, Wade et al 2008). Several mechanisms have been proposed for this first order intracontinental deformation (Raimondo et al, 2014 and references therein). One possibility is thermal weakening caused by heat production from Proterozoic granitic intrusions under a thermal blanket (Hand and Sandiford, 1999).…”

Section: Localization On the Lithospheric To Kilometer Scalementioning

confidence: 99%

Weak and slow, strong and fast: How shear zones evolve in a dry continental crust (Musgrave Ranges, Central Australia)

Hawemann¹,

Mancktelow²,

Pennacchioni³

et al. 2018

Preprint

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Key Points: Ductile shearing localizes on precursor pseudotachylytes and fractures. Stress fluctuations range from 10 MPa to at least <1 GPa  Earthquakes in the lower crust can be locally triggered by stress concentrations without the transfer of stresses from the upper crust. KeywordsPseudotachylyte, lower crust, localization of deformation, stress, earthquake AbstractThe Davenport Shear Zone in Central Australia is a strike-slip fault zone developed during the Petermann Orogeny (~ 550 Ma) in an intracontinental lower crustal setting, with conditions of shearing estimated at upper amphibolite to eclogite facies (~ 650 °C, 1.2 GPa). This five kilometer thick mylonite zone encloses several large low-strain domains, allowing a thorough study of the initiation of shear zones and their progressive development. Quartzofeldspathic gneisses and granitoids contain rheologically different layers, such as quartz-rich pegmatite dykes, mafic bands and dykes, which should preferentially localize viscous deformation if favourably orientated. This is not observed, except for long, continuous and fine grained dolerite dykes. Instead, many shear zones, typically only a few millimeters to centimeters in width but extending for tens of meters, commonly exploited pseudotachylytes and are sometimes parallel to a network of little overprinted brittle fractures. The recrystallized mineral assemblage in the sheared pseudotachylyte is similar to that in the host gneiss, without associated fluid-rock interaction. Lack of localization in quartz-rich, coarser grained (typically >50 microns) rocks compared to mafic dykes, precursor factures and pseudotachylytes implies that localization in the dry lower crust preferentially occurs along elongate planar layers with a relatively fine grain size. Transient high stress events repeatedly initiated fractures, providing finer grained, weaker, planar precursors that localized subsequent ductile shear zones. This intimate interplay between brittle and ductile deformation suggests a local source for lower crustal earthquakes, rather than downward migration of earthquakes from the shallower, usually more seismogenic part of the crust.

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Strain localization at the margins of strong lithospheric domains: Insights from analog models

et al. 2015

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The lateral variation of the mechanical properties of continental lithosphere is an important factor controlling the localization of deformation and thus the deformation history and geometry of intraplate mountain belts. A series of three-layer lithospheric-scale analog models, with a strong domain (SD) embedded at various depths, are presented to investigate the development of topography and deformation patterns by having lateral heterogeneities within a weak continental lithosphere. The experiments, performed at a constant velocity and under normal gravity, indicate that the presence or absence of the SD controls whether deformation is localized or distributed at a lithospheric scale. Deformation and topography localize above the edges of the SD, while the SD region itself is characterized by minor amounts of surficial deformation and topography. The depth of the SD (within the ductile crust, ductile mantle lithosphere, or both) controls the pattern of deformation and thus the topography. The presence of a SD in the ductile crust or in the mantle results in limited surficial topographic effects but large variations in the Moho topography. Strong Moho deflection occurs when the SD is in the ductile crust, while the Moho remains almost flat when the SD is in the mantle. When the SD occupies the ductile lithosphere, the SD is tilted. These analog experiments provide insights into intraplate strain localization and could in particular explain the topography around the Tarim Basin, a lithospheric-scale heterogeneity north of the India-Asia collision zone.

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Compressional intracontinental orogens: Ancient and modern perspectives

Cited by 173 publications

References 342 publications

Asymmetric vs. symmetric deep lithospheric architecture of intra-plate continental orogens

Asymmetric vs. symmetric deep lithospheric architecture of intra-plate continental orogens

Weak and slow, strong and fast: How shear zones evolve in a dry continental crust (Musgrave Ranges, Central Australia)

Strain localization at the margins of strong lithospheric domains: Insights from analog models

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