Opposite symmetry in the lithospheric structure of the Alboran and Algerian basins and their margins(Western Mediterranean): Geodynamic implications

Kumar, Ajay; Fernàndez, M.; Vergés, Jaume; Torné, Montserrat; Jiménez‐Munt, Ivone

doi:10.1002/essoar.10504755.1

Cited by 2 publications

(2 citation statements)

References 69 publications

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“…The Algero-Balearic basin shows a more complex evolution, presenting segments of different ages, as made manifest by the heat flow and magnetic anomaly distribution, suggesting younger oceanic crust located at the western and eastern ends of the basin (Haidar et al, 2021;Poort et al, 2020). Moreover, the Algero-Balearic basin is underlain by at least two different Tethyan slab segments, underneath the Betics-Rif and Algerian-Tunisian orogenic arcs (e.g., Faccenna et al, 2014;Fichtner & Villaseñor, 2015;Kumar et al, 2020;van Hinsbergen et al, 2014). The westernmost segment of the Algero-Balearic basin formed behind the Alboran volcanic arc in the Eastern Alboran basin during the Middle to Late Miocene (Booth-Rea et al, 2007, Booth-Rea, Ranero, & Grevemeyer, 2018de la Peña, Ranero, et al, 2020;Duggen et al, 2004Duggen et al, , 2008.…”

Section: Geodynamic Settingmentioning

confidence: 99%

Two Cenozoic Extensional Phases in Mallorca and Their Bearing on the Geodynamic Evolution of the Western Mediterranean

et al. 2021

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We study the structure of the Llevant ranges in Mallorca with special emphasis on the Cenozoic extensional evolution of the island, which we integrate in a new geodynamic model for the Westernmost Mediterranean. Mallorca underwent two Cenozoic rifting phases in the Oligocene and Serravallian, before and after the development of its Foreland Thrust Belt (FTB). The first extensional event produced Oligocene semigrabens (≈29–23 Ma) that were inverted during the Early‐Middle Miocene (19–14 Ma) WNW‐directed FTB development. The second rifting event produced the extensional collapse of the Mallorca FTB during the Serravallian (≈14–11 Ma). This later rifting was polyphasic, with two orthogonal extensional systems, producing first NE‐SW, and then NW‐SE extension. The Oligocene extension affected a major part of the Western Mediterranean, opening the Liguro‐Provençal and other basins after the collapse of the Palaeogene AlKaPeCa orogen, and Mallorca, its former hinterland. Continued plate convergence nucleated a new subduction system in the Early Miocene that initiated along the Ibiza transform, producing the Mallorca WNW‐directed FTB and subduction of the South‐East Iberian passive margin. This process individualized the Betic‐Rif slab and initiated its westward retreat. Serravallian extension occurred at the northern edge of the subduction system coeval to the Algero‐Balearic basin opening. Extension initiated toward the SW direction of slab tearing and later rotated to a NW‐SE direction, probably in response to flexural and isostatic rebound. Through these processes the Alboran domain archipelago was driven toward the southwest until the Late Miocene, contributing to the present isolation of Mallorca from its Betic hinterland.

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Section: Geodynamic Settingmentioning

confidence: 99%

Two Cenozoic Extensional Phases in Mallorca and Their Bearing on the Geodynamic Evolution of the Western Mediterranean

et al. 2021

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“…Figure 6 shows an example of the thermal, density and P-wave seismic velocity distribution of the lithosphere and sublithospheric mantle. LitMod2D_2.0 has been used to study the opposite symmetry of the lithosphere structure and the subducted paleo-Tethys in the Alborán and Algerian basins (Kumar et al, 2021), and the upper mantle anomalies below the Gibraltar arc and its topographic response (Jiménez-Munt et al, 2019).…”

Section: Integrated Geophysical and Petrological Methodsmentioning

confidence: 99%

Towards a Digital Twin of the Earth System: Geo-Soft-CoRe, a Geoscientific Software & Code Repository

et al. 2022

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The immense advances in computer power achieved in the last decades have had a significant impact in Earth science, providing valuable research outputs that allow the simulation of complex natural processes and systems, and generating improved forecasts. The development and implementation of innovative geoscientific software is currently evolving towards a sustainable and efficient development by integrating models of different aspects of the Earth system. This will set the foundation for a future digital twin of the Earth. The codification and update of this software require great effort from research groups and therefore, it needs to be preserved for its reuse by future generations of geoscientists. Here, we report on Geo-Soft-CoRe, a Geoscientific Software & Code Repository, hosted at the archive DIGITAL.CSIC. This is an open source, multidisciplinary and multiscale collection of software and code developed to analyze different aspects of the Earth system, encompassing tools to: 1) analyze climate variability; 2) assess hazards, and 3) characterize the structure and dynamics of the solid Earth. Due to the broad range of applications of these software packages, this collection is useful not only for basic research in Earth science, but also for applied research and educational purposes, reducing the gap between the geosciences and the society. By providing each software and code with a permanent identifier (DOI), we ensure its self-sustainability and accomplish the FAIR (Findable, Accessible, Interoperable and Reusable) principles. Therefore, we aim for a more transparent science, transferring knowledge in an easier way to the geoscience community, and encouraging an integrated use of computational infrastructure.Systematic Review Registration: https://digital.csic.es/handle/10261/193580.

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Opposite symmetry in the lithospheric structure of the Alboran and Algerian basins and their margins(Western Mediterranean): Geodynamic implications

Cited by 2 publications

References 69 publications

Two Cenozoic Extensional Phases in Mallorca and Their Bearing on the Geodynamic Evolution of the Western Mediterranean

Two Cenozoic Extensional Phases in Mallorca and Their Bearing on the Geodynamic Evolution of the Western Mediterranean

Towards a Digital Twin of the Earth System: Geo-Soft-CoRe, a Geoscientific Software & Code Repository

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