Articles | Volume 10, issue 5
https://doi.org/10.5194/se-10-1733-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-10-1733-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
23 Oct 2019
Research article |
| 23 Oct 2019
Deformation mechanisms in mafic amphibolites and granulites: record from the Semail metamorphic sole during subduction infancy
Sorbonne Université, CNRS-INSU, Institut des Sciences de la Terre
Paris, ISTeP UMR 7193, 75005 Paris, France
Philippe Agard
Sorbonne Université, CNRS-INSU, Institut des Sciences de la Terre
Paris, ISTeP UMR 7193, 75005 Paris, France
Benoît Ildefonse
Géosciences Montpellier, Université de Montpellier, CNRS, Université Antilles, CEDEX 05,
34095 Montpellier, France
Benoît Dubacq
Sorbonne Université, CNRS-INSU, Institut des Sciences de la Terre
Paris, ISTeP UMR 7193, 75005 Paris, France
Cécile Prigent
Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, IRD, IFSTTAR,
ISTerre, 38000 Grenoble, France
Claudio Rosenberg
Sorbonne Université, CNRS-INSU, Institut des Sciences de la Terre
Paris, ISTeP UMR 7193, 75005 Paris, France
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Cited
16 citations as recorded by crossref.
- Timescales of subduction initiation and evolution of subduction thermal regimes M. Soret et al. 10.1016/j.epsl.2022.117521
- Contribution of deformation and reaction of amphiboles to the weakening of the middle continental crust: A case study from sheared diorites along the Shuiyu shear zone in Northern Beijing H. Shan et al. 10.1016/j.jsg.2022.104727
- Effects of Water on the Rheology of Dominant Minerals and Rocks in the Continental Lower Crust: A Review Z. Wang et al. 10.1007/s12583-020-1307-9
- Dislocation Creep of Olivine and Amphibole in Amphibole Peridotites from Åheim, Norway S. Jung et al. 10.3390/min11091018
- Petrochronology of Wadi Tayin Metamorphic Sole Metasediment, With Implications for the Thermal and Tectonic Evolution of the Samail Ophiolite (Oman/UAE) J. Garber et al. 10.1029/2020TC006135
- One line on the map: A review of the geological history of the Semail Thrust, Oman-UAE mountains M. Searle et al. 10.1016/j.jsg.2022.104594
- Structural and Thermal Evolution of an Infant Subduction Shear Zone: Insights From Sub‐Ophiolite Metamorphic Rocks Recovered From Oman Drilling Project Site BT‐1B A. Kotowski et al. 10.1029/2021JB021702
- Texture and Shape Analysis of Quartzite Mylonites of the Metamorphic Sole of the Samail Ophiolite (Oman): Evidence for Syn- and Post-Obduction Deformation P. Hallas & W. Bauer 10.3390/geosciences11030111
- The origin and P-T conditions of the metamorphic sole rocks beneath the Late Cretaceous Pınarbaşı Ophiolite, Eastern-Central Anatolia R. Çörtük et al. 10.1080/00206814.2022.2045638
- Fluid-assisted grain size reduction leads to strain localization in oceanic transform faults M. Bickert et al. 10.1038/s41467-023-39556-5
- Relationship between microstructures and resistance in mafic assemblages that deform and transform N. Mansard et al. 10.5194/se-11-2141-2020
- Rb–Sr geochronology of metamorphic rocks from the Central Indonesian Accretionary Collision Complex: Additional age constraints for the Meratus and Luk Ulo complexes (South Kalimantan and Central Java) . Julian Alfing et al. 10.1016/j.lithos.2021.105971
- The temporal evolution of subduction initiation in the Samail ophiolite: High‐precision U–Pb zircon petrochronology of the metamorphic sole M. Rioux et al. 10.1111/jmg.12719
- Burial, Accretion, and Exhumation of the Metamorphic Sole of the Oman‐UAE Ophiolite T. Ambrose et al. 10.1029/2020TC006392
- Episodic Slow Slip Hosted by Talc‐Bearing Metasomatic Rocks: High Strain Rates and Stress Amplification in a Chemically Reacting Shear Zone W. Hoover et al. 10.1029/2022GL101083
- Development of Amphibole Crystal Preferred Orientations (CPOs) and Their Effects on Seismic Anisotropy in Deformed Amphibolites J. Liu & S. Cao 10.1029/2022JB026136
16 citations as recorded by crossref.
- Timescales of subduction initiation and evolution of subduction thermal regimes M. Soret et al. 10.1016/j.epsl.2022.117521
- Contribution of deformation and reaction of amphiboles to the weakening of the middle continental crust: A case study from sheared diorites along the Shuiyu shear zone in Northern Beijing H. Shan et al. 10.1016/j.jsg.2022.104727
- Effects of Water on the Rheology of Dominant Minerals and Rocks in the Continental Lower Crust: A Review Z. Wang et al. 10.1007/s12583-020-1307-9
- Dislocation Creep of Olivine and Amphibole in Amphibole Peridotites from Åheim, Norway S. Jung et al. 10.3390/min11091018
- Petrochronology of Wadi Tayin Metamorphic Sole Metasediment, With Implications for the Thermal and Tectonic Evolution of the Samail Ophiolite (Oman/UAE) J. Garber et al. 10.1029/2020TC006135
- One line on the map: A review of the geological history of the Semail Thrust, Oman-UAE mountains M. Searle et al. 10.1016/j.jsg.2022.104594
- Structural and Thermal Evolution of an Infant Subduction Shear Zone: Insights From Sub‐Ophiolite Metamorphic Rocks Recovered From Oman Drilling Project Site BT‐1B A. Kotowski et al. 10.1029/2021JB021702
- Texture and Shape Analysis of Quartzite Mylonites of the Metamorphic Sole of the Samail Ophiolite (Oman): Evidence for Syn- and Post-Obduction Deformation P. Hallas & W. Bauer 10.3390/geosciences11030111
- The origin and P-T conditions of the metamorphic sole rocks beneath the Late Cretaceous Pınarbaşı Ophiolite, Eastern-Central Anatolia R. Çörtük et al. 10.1080/00206814.2022.2045638
- Fluid-assisted grain size reduction leads to strain localization in oceanic transform faults M. Bickert et al. 10.1038/s41467-023-39556-5
- Relationship between microstructures and resistance in mafic assemblages that deform and transform N. Mansard et al. 10.5194/se-11-2141-2020
- Rb–Sr geochronology of metamorphic rocks from the Central Indonesian Accretionary Collision Complex: Additional age constraints for the Meratus and Luk Ulo complexes (South Kalimantan and Central Java) . Julian Alfing et al. 10.1016/j.lithos.2021.105971
- The temporal evolution of subduction initiation in the Samail ophiolite: High‐precision U–Pb zircon petrochronology of the metamorphic sole M. Rioux et al. 10.1111/jmg.12719
- Burial, Accretion, and Exhumation of the Metamorphic Sole of the Oman‐UAE Ophiolite T. Ambrose et al. 10.1029/2020TC006392
- Episodic Slow Slip Hosted by Talc‐Bearing Metasomatic Rocks: High Strain Rates and Stress Amplification in a Chemically Reacting Shear Zone W. Hoover et al. 10.1029/2022GL101083
- Development of Amphibole Crystal Preferred Orientations (CPOs) and Their Effects on Seismic Anisotropy in Deformed Amphibolites J. Liu & S. Cao 10.1029/2022JB026136
Discussed (preprint)
Latest update: 01 Oct 2023
Short summary
This study sheds light on the mineral-scale mechanisms controlling the progressive deformation of sheared amphibolites from the Oman metamorphic sole during subduction initiation and unravels how strain is localized and accommodated in hydrated mafic rocks at high temperature conditions. Our results indicate how metamorphic reactions and pore-fluid pressures driven by changes in pressure–temperature conditions and/or water activity control the rheology of mafic rocks.
This study sheds light on the mineral-scale mechanisms controlling the progressive deformation...
