Articles | Volume 10, issue 4
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

Károly Hidas, Carlos J. Garrido, Guillermo Booth-Rea, Claudio Marchesi, Jean-Louis Bodinier, Jean-Marie Dautria, Amina Louni-Hacini, and Abla Azzouni-Sekkal

Related subject area

Subject area: Tectonic plate interactions, magma genesis, and lithosphere deformation at all scales | Editorial team: Structural geology and tectonics, paleoseismology, rock physics, experimental deformation | Discipline: Tectonics
Analogue modelling of basin inversion: a review and future perspectives
Frank Zwaan, Guido Schreurs, Susanne J. H. Buiter, Oriol Ferrer, Riccardo Reitano, Michael Rudolf, and Ernst Willingshofer
Solid Earth, 13, 1859–1905,,, 2022
Short summary
Insights into the interaction of a shale with CO2
Eleni Stavropoulou and Lyesse Laloui
Solid Earth, 13, 1823–1841,,, 2022
Short summary
Tectonostratigraphic evolution of the Slyne Basin
Conor M. O'Sullivan, Conrad J. Childs, Muhammad M. Saqab, John J. Walsh, and Patrick M. Shannon
Solid Earth, 13, 1649–1671,,, 2022
Short summary
Control of crustal strength, tectonic inheritance, and stretching/ shortening rates on crustal deformation and basin reactivation: insights from laboratory models
Benjamin Guillaume, Guido M. Gianni, Jean-Jacques Kermarrec, and Khaled Bock
Solid Earth, 13, 1393–1414,,, 2022
Short summary
Construction of the Ukrainian Carpathian Wedge from low-temperature thermochronology and tectono-stratigraphic analysis
Marion Roger, Arjan de Leeuw, Peter van der Beek, Laurent Husson, Edward R. Sobel, Johannes Glodny, and Matthias Bernet
EGUsphere,,, 2022
Short summary

Cited articles

Abbassene, F., Chazot, G., Bellon, H., Bruguier, O., Ouabadi, A., Maury, R. C., Déverchére, J., Bosch, D., and Monié, P.: A 17 Ma onset for the post-collisional K-rich calc-alkaline magmatism in the Maghrebides: Evidence from Bougaroun (northeastern Algeria) and geodynamic implications, Tectonophysics, 674, 114–134,, 2016. 
Arai, S.: Characterization of spinel peridotites by olivine-spinel compositional relationships: Review and interpretation, Chem. Geol., 113, 191–204,, 1994. 
Asimow, P. D. and Stolper, E. M.: Steady-state mantle-melt interactions in one dimension, I, Equilibrium transport and melt focusing, J. Petrol., 40, 475–494, 1999. 
Azdimousa, A., Jabaloy-Sánchez, A., Münch, P., Martínez-Martínez, J. M., Booth-Rea, G., Vázquez-Vílchez, M., Asebriy, L., Bourgois, J., and González-Lodeiro, F.: Structure and exhumation of the Cap des Trois Fourches basement rocks (Eastern Rif, Morocco), J. Afr. Earth Sci., 150, 657–672,, 2019. 
Bachmann, F., Hielscher, R., and Schaeben, H.: Texture analysis with MTEX – free and open source software toolbox, Sol. St. Phen., 160, 63–68, 2010. 
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.