Structure and Alpine tectonic evolution of a salt canopy in the western Betic Cordillera (Spain)

Flinch, Joan; Soto, Juan I.

doi:10.1016/j.marpetgeo.2022.105782

Cited by 12 publications

(4 citation statements)

References 97 publications

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“…2. In our case, we have not identified structures such as allochthonous salt sheets (e.g., (Flinch & Soto, 2022)), nor salt wings, nor thick sedimentary sequences filling secondary minibasins that can completely weld the source layer (e.g., (Kergaravat et al, 2017)). This is probably due to a lower thickness of the IZ evaporites, as well as to their aforementioned higher viscosity and complex rheology.…”

Section: Influence Of Preexisting Diapirs On the Orogenic Evolution O...contrasting

confidence: 57%

Contrasting Styles of Salt-Tectonic Processes in the Ionian Zone (NW Greece and S Albania)

Soto,

TRANOS,

Bega

et al. 2023

Preprint

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Section: Influence Of Preexisting Diapirs On the Orogenic Evolution O...contrasting

confidence: 57%

Contrasting Styles of Salt-Tectonic Processes in the Ionian Zone (NW Greece and S Albania)

Soto,

TRANOS,

Bega

et al. 2023

Preprint

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“…5d). Similar processes have been described in Gabon, Morocco, the sub-Alpine fold-and-thrust belt where compressional salt glaciers are developed during the growth of the orogen (Ventisette et al, 2005;Hudec and Jackson, 2006;Jackson et al, 2008;Graham et al, 2012;Fernández et al, 2020;Flinch and Soto, 2022).…”

Section: [Figure 10]supporting

confidence: 56%

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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“…In our case, we have not identified structures such as allochthonous salt sheets (e.g., Flinch & Soto, 2022), nor salt wings, nor thick sedimentary sequences filling secondary minibasins that can completely weld the source layer (e.g., Kergaravat et al, 2017). This is probably due to a lower thickness of the IZ evaporites, as well as to their aforementioned higher viscosity and complex rheology.…”

Section: How To Differentiate Preexisting Diapirs In a Ftbcontrasting

confidence: 56%

Contrasting Styles of Salt‐Tectonic Processes in the Ionian Zone (Greece and Albania): Integrating Surface Geology, Subsurface Data, and Experimental Models

Soto,

Tranos,

Bega

et al. 2024

Tectonics

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The Ionian Zone (IZ) is one of the key elements of the fold and thrust belt (FTB) of the Albanian and Hellenides orogen and contains large outcrops of Triassic evaporites. The IZ consists of various thrust sheets with a general westward vergence, stacking over the Apulian and Pre‐Apulian zones, and repeating a thick carbonate sequence of Upper Triassic to Eocene age. Thrusting becomes younger toward the west with a piggyback sequence, starting during the latest Oligocene Epoch in the Internal Ionian and ending in the Pliocene in the External Ionian. We have studied the IZ in southern Albania and northwestern Greece using field observations and borehole data and by fully interpreting a recently acquired 2D seismic data set. Our objectives are to establish the geometry and nature of the contacts associated with the major Triassic outcrops, to unravel precursor salt diapirs, and to assess their role during the Alpine contraction. Salt structures include gentle salt pillows, isolated salt plugs and diapirs, thrust welds, and salt walls. Combining these observations with experimental modeling results, we show how these structures control the geometry and kinematics of the Alpine thrusts or the location and kinematics of recent strike‐slip faults. Salt minibasins have also been identified, demonstrating salt mobility conditioned Mesozoic sedimentation in the Ionian Basin. The use of salt‐tectonics principles to evaluate the structural style and evolution of the IZ FTB also opens new directions for interpreting the subsurface structure and evolution of the region.

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Structure and Alpine tectonic evolution of a salt canopy in the western Betic Cordillera (Spain)

Cited by 12 publications

References 97 publications

Contrasting Styles of Salt-Tectonic Processes in the Ionian Zone (NW Greece and S Albania)

Contrasting Styles of Salt-Tectonic Processes in the Ionian Zone (NW Greece and S Albania)

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

Contrasting Styles of Salt‐Tectonic Processes in the Ionian Zone (Greece and Albania): Integrating Surface Geology, Subsurface Data, and Experimental Models

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