Analogue modeling as a tool to assist seismic structural interpretation in the Andean fold-and-thrust belt

Ferrer, Oriol; Santolaria, Pablo; Muñoz, Josep Antón; Granado, Pablo; Roca, Eduard; Gratacós, Òscar; Snidero, Marco

doi:10.1016/b978-0-323-85175-6.00003-1

Cited by 5 publications

(4 citation statements)

References 66 publications

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“…Onset of salt evacuation was triggered by pouring the first syn‐kinematic sand layer around the location of what‐would‐be the minibasin depocenters (minibasin seeding areas in Figure 2b). Sand deposited in such a way led to a localized sedimentary differential loading that triggered minibasins vertical sinking, while model salt is evacuated from below the minibasin depocenters toward flanking salt walls (e.g., Ferrer et al., 2022; Rowan & Vendeville, 2006; Santolaria, Ferrer, et al., 2021; Santolaria, Granado, et al., 2021; Warsitzka et al., 2013). Additional sand layers filled the accommodation space created by the minibasin's sinking which, in its turn, created positive feedback between sedimentary differential loading and sinking.…”

Section: Analog Modelingmentioning

confidence: 99%

“…Large-transport thrusts have been described in natural fold-and-thrust belts involving salt décollements such as the Salt Range in Pakistan (Grelaud et al, 2002), the Quele Fault in the Kuqa Basin of NW China (Izquierdo-Llavall et al, 2018;Rowan, 2017), and the Chazuta thrust in the Sub-Andean zone of northern Peru (Borderie et al, 2019;Eude et al, 2015;Zamora et al, 2019Zamora et al, , 2022. Mechanically, the occurrence of large-transport faults is favored by a thick and very effective, low yield-strength, or viscous layer, a sedimentary wedge on top of it (mechanically equivalent to our proto-wedge) and forward salt inflation (Borderie et al, 2019;Ferrer et al, 2022); characteristics that converge in our Models 2 and 3. Thick décollements yield a continuous feeding of the inflated salt in their hanging-wall that may eventually extrude along the front of these source-fed, large-transport thrusts, leading to additional salt sheets that may extend beyond the thrust front (Figure 10b).…”

Section: Role Of Inherited Salt-related Rifted Margin Architecture An...mentioning

confidence: 99%

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From Salt‐Bearing Rifted Margins to Fold‐And‐Thrust Belts. Insights From Analog Modeling and Northern Calcareous Alps Case Study

et al. 2022

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Section: Analog Modelingmentioning

confidence: 99%

Section: Role Of Inherited Salt-related Rifted Margin Architecture An...mentioning

confidence: 99%

From Salt‐Bearing Rifted Margins to Fold‐And‐Thrust Belts. Insights From Analog Modeling and Northern Calcareous Alps Case Study

et al. 2022

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“…Since the dawn of analogue tectonic modelling, researchers have developed a variety of techniques, ranging from (time-lapse) photography, the generation of cross-sections, and topography analysis to advanced 2D and 3D digital image correlation techniques and X-ray CT scanning (e.g. Ranalli, 2001;Bonini et al, 2012;Ferrer et al, 2022b;Zwaan and Schreurs, 2022a, b). Most studies included a combination of these techniques.…”

Section: Model Monitoring and Analysismentioning

confidence: 99%

Analogue modelling of basin inversion: a review and future perspectives

Zwaan

Schreurs²,

Buiter³

et al. 2022

Solid Earth

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Abstract. Basin inversion involves the reversal of subsidence in a basin due to compressional tectonic forces, leading to uplift of the basin's sedimentary infill. Detailed knowledge of basin inversion is of great importance for scientific, societal, and economic reasons, spurring continued research efforts to better understand the processes involved. Analogue tectonic modelling forms a key part of these efforts, and analogue modellers have conducted numerous studies of basin inversion. In this review paper we recap the advances in our knowledge of basin inversion processes acquired through analogue modelling studies, providing an up-to-date summary of the state of analogue modelling of basin inversion. We describe the different definitions of basin inversion that are being applied by researchers, why basin inversion has been historically an important research topic and what the general mechanics involved in basin inversion are. We subsequently treat the wide range of different experimental approaches used for basin inversion modelling, with attention to the various materials, set-ups, and techniques used for model monitoring and analysing the model results. Our new systematic overviews of generalized model results reveal the diversity of these results, which depend greatly on the chosen set-up, model layering and (oblique) kinematics of inversion, and 3D along-strike structural and kinematic variations in the system. We show how analogue modelling results are in good agreement with numerical models, and how these results help researchers to better understand natural examples of basin inversion. In addition to reviewing the past efforts in the field of analogue modelling, we also shed light on future modelling challenges and identify a number of opportunities for follow-up research. These include the testing of force boundary conditions, adding geological processes such as sedimentation, transport, and erosion; applying state-of-the-art modelling and quantification techniques; and establishing best modelling practices. We also suggest expanding the scope of basin inversion modelling beyond the traditional upper crustal “North Sea style” of inversion, which may contribute to the ongoing search for clean energy resources. It follows that basin inversion modelling can bring valuable new insights, providing a great incentive to continue our efforts in this field. We therefore hope that this review paper will form an inspiration for future analogue modelling studies of basin inversion.

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“…Finally, the methodology by Hubbert (1937), Cobbold (1988), andSchellart (2000) has been used to dynamically scale the models with natural analogues by a factor of 10 -5 (Table 2). allowing them to be imported into commercial software (Ferrer et al, 2022b). The resultant input data is a 3D SEG-Y of each model that is then used to perform the interpretation of the different faults and horizons.…”

Section: Mechanical Properties Of the Analogue Materials And Scalingmentioning

confidence: 99%

Structural control of inherited salt structures during inversion of a domino basement-fault system from an analogue modelling approach

Ferrer

Carola²,

McClay³

2022

Preprint

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Abstract. Inversion of an extensional domino-like basement faults system with a pre-extension decoupling layer is presented as a set of analogue models to understand the role of pre-existing structural features during inversion. The present study expands the experimental program by Ferrer et al. (2022a) in which, models were carried out with different salt and overburden thicknesses to investigate the role played by the salt and by the overburden during extension but also, how extensional structures and salt distribution condition the evolution during inversion. The results show that after total inversion of the models, the resultant structural style of deformation is highly influenced by the inherited extensional configuration and by the thickness of salt which they both condition the degree of coupling/decupling between the pre- and syn-kinematic successions. While models with thick salt can partially or totally preserve the extensional ramp-syncline basin geometry independently of the overburden thickness, models with thin salt result in a total inversion of the ramp-syncline basins with the development of crestal collapse grabens and extensional faults affecting the overburden. Compression triggered the development or reactivation of salt-related structures such as primary weld reactivations (i.e., reopening and/or obliteration), diapir rejuvenation, salt thickening, thrust emplacement, etc. The development of these elements is conditioned by the salt thickness distribution at the end of the extension and therefore, a precise understanding of inherited salt-related structures in needed so to understand the inversion of the basin as well as characterise the structural style.

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Analogue modeling as a tool to assist seismic structural interpretation in the Andean fold-and-thrust belt

Cited by 5 publications

References 66 publications

From Salt‐Bearing Rifted Margins to Fold‐And‐Thrust Belts. Insights From Analog Modeling and Northern Calcareous Alps Case Study

From Salt‐Bearing Rifted Margins to Fold‐And‐Thrust Belts. Insights From Analog Modeling and Northern Calcareous Alps Case Study

Analogue modelling of basin inversion: a review and future perspectives

Structural control of inherited salt structures during inversion of a domino basement-fault system from an analogue modelling approach

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