Articles | Volume 10, issue 4
https://doi.org/10.5194/se-10-1099-2019
© 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-10-1099-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
10 Jul 2019
Research article |
| 10 Jul 2019
Lithosphere tearing along STEP faults and synkinematic formation of lherzolite and wehrlite in the shallow subcontinental mantle
Instituto Andaluz de Ciencias de la Tierra, CSIC & Universidad de
Granada, Av. de las Palmeras 4, 18100 Armilla, Granada, Spain
Departamento de Geodinámica, Facultad de Ciencias, Universidad de
Granada, Campus de Fuentenueva s/n, 18071 Granada, Spain
Carlos J. Garrido
Instituto Andaluz de Ciencias de la Tierra, CSIC & Universidad de
Granada, Av. de las Palmeras 4, 18100 Armilla, Granada, Spain
Guillermo Booth-Rea
Departamento de Geodinámica, Facultad de Ciencias, Universidad de
Granada, Campus de Fuentenueva s/n, 18071 Granada, Spain
Claudio Marchesi
Instituto Andaluz de Ciencias de la Tierra, CSIC & Universidad de
Granada, Av. de las Palmeras 4, 18100 Armilla, Granada, Spain
Departamento de Mineralogía y Petrología, Facultad de Ciencias,
Universidad de Granada, Campus de Fuentenueva s/n, 18071 Granada, Spain
Jean-Louis Bodinier
Géosciences Montpellier, UMR 5243, CNRS & Université de
Montpellier, Place E. Bataillon, 34095 Montpellier, France
Jean-Marie Dautria
Géosciences Montpellier, UMR 5243, CNRS & Université de
Montpellier, Place E. Bataillon, 34095 Montpellier, France
Amina Louni-Hacini
Faculté des Sciences de la Terre, de Géographie et de
l'Aménagement du Territoire – Université des Sciences et de la
Technologie Houari Boumédiène – Laboratoire de Métallogénie
et Magmatisme de l'Algérie, 32, El Alia, 16111, Bab Ezzouar, Algiers,
Algeria
Abla Azzouni-Sekkal
Faculté des Sciences de la Terre, de Géographie et de
l'Aménagement du Territoire – Université des Sciences et de la
Technologie Houari Boumédiène – Laboratoire de Métallogénie
et Magmatisme de l'Algérie, 32, El Alia, 16111, Bab Ezzouar, Algiers,
Algeria
Faculté des Sciences de la Nature et de la Vie et des Sciences de la
Terre et de l'Univers, Université Abou Bekr Belkaïd, BP 119,
13000, Tlemcen, Algeria
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Cited
12 citations as recorded by crossref.
- Geodynamic Modeling of Edge-Delamination Driven by Subduction-Transform Edge Propagator Faults: The Westernmost Mediterranean Margin (Central Betic Orogen) Case Study A. Negredo et al. 10.3389/feart.2020.533392
- Polyphase Tectonic Evolution of Fore‐Arc Basin Related to STEP Fault as Revealed by Seismic Reflection Data From the Alboran Sea (W‐Mediterranean) E. d'Acremont et al. 10.1029/2019TC005885
- Transpressional deformation in the lithospheric mantle beneath the North Anatolian Fault Zone V. Chatzaras et al. 10.1016/j.tecto.2021.228989
- Effects of melt-percolation, refertilization and deformation on upper mantle seismic anisotropy: constraints from peridotite xenoliths, Marie Byrd Land, West Antarctica V. Chatzaras & S. Kruckenberg 10.1144/M56-2020-16
- New insights on the Alboran Sea basin extension and continental collision from magnetic anomalies related to magmatism (western Mediterranean) V. Tendero-Salmerón et al. 10.1016/j.margeo.2021.106696
- Interplay between melt infiltration and deformation in the deep lithospheric mantle (External Liguride ophiolite, North Italy) K. Hidas et al. 10.1016/j.lithos.2020.105855
- The evolution of the westernmost Mediterranean basins L. Gómez de la Peña et al. 10.1016/j.earscirev.2020.103445
- Back‐Arc Dynamics Controlled by Slab Rollback and Tearing: A Reappraisal of Seafloor Spreading and Kinematic Evolution of the Eastern Algero‐Balearic Basin (Western Mediterranean) in the Middle‐Late Miocene S. Haidar et al. 10.1029/2021TC006877
- Two Cenozoic Extensional Phases in Mallorca and Their Bearing on the Geodynamic Evolution of the Western Mediterranean L. Moragues et al. 10.1029/2021TC006868
- Application of Automated Throw Backstripping Method to Characterize Recent Faulting Activity Migration in the Al Hoceima Bay (Northeast Morocco): Geodynamic Implications V. Tendero-Salmerón et al. 10.3389/feart.2021.645942
- Microstructural Analysis of a Mylonitic Mantle Xenolith Sheared at Laboratory-like Strain Rates from the Edge of the Wyoming Craton Y. Boneh et al. 10.3390/min11090995
- Ongoing Inversion of a Passive Margin: Spatial Variability of Strain Markers Along the Algerian Margin and Basin (Mediterranean Sea) and Seismotectonic Implications P. Leffondré et al. 10.3389/feart.2021.674584
11 citations as recorded by crossref.
- Geodynamic Modeling of Edge-Delamination Driven by Subduction-Transform Edge Propagator Faults: The Westernmost Mediterranean Margin (Central Betic Orogen) Case Study A. Negredo et al. 10.3389/feart.2020.533392
- Polyphase Tectonic Evolution of Fore‐Arc Basin Related to STEP Fault as Revealed by Seismic Reflection Data From the Alboran Sea (W‐Mediterranean) E. d'Acremont et al. 10.1029/2019TC005885
- Transpressional deformation in the lithospheric mantle beneath the North Anatolian Fault Zone V. Chatzaras et al. 10.1016/j.tecto.2021.228989
- Effects of melt-percolation, refertilization and deformation on upper mantle seismic anisotropy: constraints from peridotite xenoliths, Marie Byrd Land, West Antarctica V. Chatzaras & S. Kruckenberg 10.1144/M56-2020-16
- New insights on the Alboran Sea basin extension and continental collision from magnetic anomalies related to magmatism (western Mediterranean) V. Tendero-Salmerón et al. 10.1016/j.margeo.2021.106696
- Interplay between melt infiltration and deformation in the deep lithospheric mantle (External Liguride ophiolite, North Italy) K. Hidas et al. 10.1016/j.lithos.2020.105855
- The evolution of the westernmost Mediterranean basins L. Gómez de la Peña et al. 10.1016/j.earscirev.2020.103445
- Back‐Arc Dynamics Controlled by Slab Rollback and Tearing: A Reappraisal of Seafloor Spreading and Kinematic Evolution of the Eastern Algero‐Balearic Basin (Western Mediterranean) in the Middle‐Late Miocene S. Haidar et al. 10.1029/2021TC006877
- Two Cenozoic Extensional Phases in Mallorca and Their Bearing on the Geodynamic Evolution of the Western Mediterranean L. Moragues et al. 10.1029/2021TC006868
- Application of Automated Throw Backstripping Method to Characterize Recent Faulting Activity Migration in the Al Hoceima Bay (Northeast Morocco): Geodynamic Implications V. Tendero-Salmerón et al. 10.3389/feart.2021.645942
- Microstructural Analysis of a Mylonitic Mantle Xenolith Sheared at Laboratory-like Strain Rates from the Edge of the Wyoming Craton Y. Boneh et al. 10.3390/min11090995
Discussed (preprint)
Latest update: 29 Mar 2023
Short summary
Subduction-transform edge propagator (STEP) faults are the locus of continual lithospheric tearing at the edges of subducted slabs, resulting in sharp changes in the lithospheric thickness and triggering lateral and/or near-vertical mantle flow. Here, we study upper mantle rocks recovered from a STEP fault context by < 4 Ma alkali volcanism. We reconstruct how the microstructure developed during deformation and coupled melt–rock interaction, which are promoted by lithospheric tearing at depth.
Subduction-transform edge propagator (STEP) faults are the locus of continual lithospheric...
