2016
DOI: 10.2113/gssgfbull.187.2.83
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A discussion on the validation of structural interpretations based on the mechanics of sedimentary basins in the northwestern Mediterranean fold-and-thrust belts

Abstract: Using the geologist’s interpretation of 6 published balanced cross-sections in the fold and thrust belts of the northwestern Mediterranean, a comparative analysis of the interpreted subsurface structural architecture is used to address the links between the structural style and the mechanics of fold and thrust emplacement. For each cross-section example, the geo-dataset and the methods used by the interpreters are different in quantity and quality. Here we have examined how useful is the content of information… Show more

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Cited by 6 publications
(3 citation statements)
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“…We carried out the structural validation of our interpretation by means of the 2D restoration of section 1 performed through the 2DMove software by Petroleum Experts, in line with well-established balancing and restoration techniques (e.g. Dahlstrom, 1969D;Rowan and Kligfield, 1989;Egan et al, 1997;Groshong, 2006;Groshong et al, 2012;Lovely et al, 2012;Butler, 2013;Berthelon and Sassi, 2016). The restoration was carried out for the units in the footwall of the allochthonous tectonic wedge and included: (i) removal of the allochthonous wedge; (ii) unfaulting of the shallow bending-moment faults affecting the Plio-Pleistocene sequence; (iii) unfaulting of the flower structures by adopting a trishear kinematic procedure, allowing the modelling of faults which upper tip is confined within a syn-growth sequence; (iv) unfolding to the top of the syn-growth sequence; and, (v) unfaulting of the top of the Apulian Platform carbonates (TCC).…”
Section: Structural Validation and Timing Of The Deformationmentioning
confidence: 99%
“…We carried out the structural validation of our interpretation by means of the 2D restoration of section 1 performed through the 2DMove software by Petroleum Experts, in line with well-established balancing and restoration techniques (e.g. Dahlstrom, 1969D;Rowan and Kligfield, 1989;Egan et al, 1997;Groshong, 2006;Groshong et al, 2012;Lovely et al, 2012;Butler, 2013;Berthelon and Sassi, 2016). The restoration was carried out for the units in the footwall of the allochthonous tectonic wedge and included: (i) removal of the allochthonous wedge; (ii) unfaulting of the shallow bending-moment faults affecting the Plio-Pleistocene sequence; (iii) unfaulting of the flower structures by adopting a trishear kinematic procedure, allowing the modelling of faults which upper tip is confined within a syn-growth sequence; (iv) unfolding to the top of the syn-growth sequence; and, (v) unfaulting of the top of the Apulian Platform carbonates (TCC).…”
Section: Structural Validation and Timing Of The Deformationmentioning
confidence: 99%
“…Franke et al, 2008;Morley, 2009;Hesse et al, 2009Hesse et al, , 2010King et al, 2010;Sapin et al, 2011], more to the south the resolution of the published seismic images is insucient to decipher the sequence of faults activities, in both extensional and compressional regions [Hesse et al, 2009;King et al, 2010;Sapin et al, 2011]. Without further geophysical and geological information, it is dicult to discriminate one among the dierent possible model of structural development, which lead to poorly constrain the burial, temperature and stress/strain history of each structural block [Sassi et al, 2007;Smart et al, 2012;Albertz & Sanz, 2012;Albertz & Lingrey, 2012; Berthelon & Sassi, 2016]. Ultimately, it leads to uncertainties in petroleum system modelling, seals integrity analysis, pore pressure prediction and stress regime estimation, both because state-of-the-art basin modelling software use prescribed geometries at specic geological times that need prior structural validation [Neumaier et al, 2014;Faille et al, 2014;Thibaut et al, 2014; Burgreen-Chan et al, 2016], and because 2-D/3-D fully coupled hydromechanical numerical simulations are still unable to reproduce complex 2D/3D structural geometries [e.g.…”
Section: Introductionmentioning
confidence: 99%
“…Gravity-driven deformations in shale-dominated deltas such as the Brunei margin are controlled by the strength of the clay-rich detachment that greatly depends on the magnitude of the pore uid overpressure [Rowan et al, 2004;Morley et al, 2017Morley et al, , 2018, which itself depends on the stress/strain history, burial and temperature paths and the local uid ows [Sassi et al, 2007;Beaudoin et al, 2014;Couzens-Schultz & Azbel, 2014;Berthelon & Sassi, 2016;Obradors-Prats et al, 2017]. Elevated overpressures are commonly observed in the Brunei margin [Morley, 2003;Tingay et al, 2009;Morley et al, 2011].…”
Section: Introductionmentioning
confidence: 99%