Abstract
The sequence of processes that lead from continental rifting to oceanic drifting during the genesis of passive margins remains debated. Wide-angle seismics has, over the past decades, proven an efficient tool to image the architecture and to quantify the acoustic velocity of continental margins. These data, combined with structural interpretation and stratigraphic/kinematic/mechanical numerical modeling, have led to better characterization of the crustal and mantellic processes active from rifting to drifting. The Protoc project is focused on the accretion of proto-oceanic crust that occurs before the more homogeneous and stable oceanic drift.
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Van Hinsbergen, D.J.J., et al.: Origin and consequences of western Mediterranean subduction, rollback, and slab segmentation. Tectonics 33, 393–419 (2014). https://doi.org/10.1002/2013TC003349
Leroux, et al.: Atlas of the stratigraphic markers in the western Mediterranean sea with focus on the Gulf of Lion. Commission de la Carte Géologique du Monde (in press)
Gardosh, M.A., et al.: Tethyan rifting in the Levant region and its role in Early Mesozoic crustal evolution. Geol. Soc. London Spec. Publ. 341, 9–36 (2010). https://doi.org/10.1144/SP341.2
Montadert, L., et al.: Petroleum systems offshore Cyprus. AAPG Memoir 106, 301–334 (2014). https://doi.org/10.1036/13431860M1063611
Moulin, M., et al.: Geological constraints on the evolution of the Angolan margin based on reflection and refraction seismic data (ZaiAngo project). Geophys. J. Int. 162, 793–810 (2005). https://doi.org/10.1111/j.1365-246X.2005.02668.x
Aslanian, D., et al.: Brasilian and Angolan Passive Margins: the kinematic constraints. Tectonophysics Spec. Issue Role Magmatism 468, 98–112 (2009). https://doi.org/10.1016/j.tecto.2008.12.016
Evain, M., et al.: Deep structure of the Santos Basin-São Paulo Plateau System (SSPS). Geophys. J. Int. 120(8), 5401–5431 (2015). https://doi.org/10.1002/2014jb011561
Loureiro, A., et al.: Imaging exhumed lower continental crust in the distal Jequitinhonha basin, Brazil. J. S. Am. Earth Sci. 84, 351–372 (2018). https://doi.org/10.1016/j.jsames.2018.01.009
Moulin, M., et al.: Deep crustal structure across an young passive margin from wide-angle and reflection seismic data (The SARDINIA Experiment)—I. Gulf of Lion’s margin. BSGF 186, 309–330 (2015). https://doi.org/10.2113/gssgfbull.186.4-5.309
Afilhado, A., et al.: Deep crustal structure across an young passive margin from wide-angle and reflection seismic data (The SARDINIA Experiment)—II. Sardinia’s margin. BSGF, ILP Special volume 186, 331–351 (2015). https://doi.org/10.2113/gssgfbull.186.4-5.331
Jolivet, L., et al.: Continental breakup and the dynamics of rifting in back-arc basins: the Gulf of Lion margin. Tectonics 34, 662–679 (2015). https://doi.org/10.1002/2014tc003570
Boillot, G., Froitzheim, N.: Non-volcanic rifted margins, continental break-up and the onset of sea-floor spreading: some outstanding questions. Geol. Soc. London Spec. Publ. 187, 9–30 (2001). https://doi.org/10.1144/gsl.sp.2001.187.01.02
Lavier, L., Manatschal, G.: A mechanism to thin the continental lithosphere at magma-poor margins. Nature 440, 324–328 (2006). https://doi.org/10.1038/nature04608
Klingelhoefer, F., et al.: Imaging proto-oceanic crust off the Brazilian Continental Margin. Geophys. J. Int. 200(1), 471–488 (2014). https://doi.org/10.1093/gji/ggu387
McKenzie, D., et al.: Characteristics and consequences of flow in the lower crust. J. Geophys. Res. 105(B5), 11029–11046 (2000). https://doi.org/10.1029/1999JB900446
Bott, M.H.P.: Evolution of young continental margins and formation of shelf basin. Tectonophysics 11, 319–337 (1971). https://doi.org/10.1016/0040-1951(71)90024-2
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Schnürle, P. et al. (2019). From Rifting to Spreading: The Proto-Oceanic Crust. In: Rossetti, F., et al. The Structural Geology Contribution to the Africa-Eurasia Geology: Basement and Reservoir Structure, Ore Mineralisation and Tectonic Modelling. CAJG 2018. Advances in Science, Technology & Innovation. Springer, Cham. https://doi.org/10.1007/978-3-030-01455-1_72
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