The Alpine Cycle in Eastern Iberia: Microplate Units and Geodynamic Stages

Gómez, Juan José Morales; Sandoval, José; Aguado, Roque; O’Dogherty, Luis; Osete, María Luisa

doi:10.1007/978-3-030-11295-0_2

Cited by 7 publications

(7 citation statements)

References 81 publications

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“…The time interval (early Pliensbachian-early Bajocian) in which the studied volcanic deposits were accumulated fits within the first passive margin or post-rifting stage in the Iberian Basin, from the latest Triassic (late Norian) [Sánchez-Moya andSopeña, 2004, Gómez et al, 2019] or Early Jurassic (Sinemurian) Casas, 1993, Salas et al, 2001] to Middle-Late Jurassic (Callovian-Oxfordian boundary) [Gómez et al, 2019] or latest Oxfordian Casas, 1993, Salas et al, 2001, Sánchez-Moya andFigure 2. Idealized landscape showing the interaction between submarine volcanism, tectonism, and sedimentation.…”

Section: Paleogeographic and Geodynamic Contextmentioning

confidence: 99%

“…The Cretaceous and Cenozoic shortening occurred during the subsequent Alpine orogenic stage and gave rise to the Alpine ranges (the Basque-Cantabrian, Pyrenean, Catalonian, Iberian, and Betic ranges). The Iberian Range is a moderately deformed intraplate chain constituted by a NWoriented folded belt with a low degree of shortening [Gómez et al, 2019]. The Castilian-Valencian Branch and the Aragonese Branch are two NW-SE-oriented elongated areas that form its central and eastern part.…”

Section: Paleogeographic and Geodynamic Contextmentioning

confidence: 99%

“…By contrast, they no longer occur from the early Bajocian (late Laeviuscula Zone or Laeviuscula-Propinquans zonal boundary) in the Iberian carbonate-platform system [Cortés, 2018[Cortés, , 2021, whereas their presence lasted until the Santonian in the Betic Basin [Molina et al, 1998, Molina andVera, 2008]. Another difference is that lavas, pillow lavas, dikes, and sills were dominant in the Median Subbetic [Gómez et al, 2019] against the pyroclastic explosive deposits that occurred in the Iberian platforms [Cortés, 2018]. All the aforementioned suggests the possibility of volcanisms with a common origin in both basins but maybe reservoirs with different capacity.…”

Section: Genetic Relationships With Surrounding Jurassic Volcanismmentioning

confidence: 99%

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Dating volcanic materials through biochronostratigraphic methods applied to hosting strata (example from the Iberian Chain, eastern Spain)

Cortés¹

2023

Comptes Rendus. Géoscience

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Volcaniclastic accumulations in shallow marine environments are prone to be eroded and transported by sedimentary agents and then resedimented either on contemporaneous or younger substrates. Therefore, dating of the volcanic events through the sediments containing interbedded volcanic layers can lead to errors. A case study of volcanism in the southeastern Iberian Range during the Early and Middle Jurassic is presented. Precise dating of hosting carbonate sediments based on ammonite and brachiopod biochronostratigraphic method has allowed distinguishing 13 volcanic levels of different ages ranging from the early Pliensbachian to the early Bajocian. A set of petrological, geomorphological, sedimentological, and paleontological criteria are applied in order to discriminate primary from secondary (epiclastic) volcaniclastic deposits and thus make it possible to match the ages of primary volcaniclastic deposits with volcanic eruptions. Implementation of such criteria has confirmed that the early Pliensbachian-early Bajocian interval (ca. 20 Ma) corresponds with the actual period of volcanic activity.

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Section: Paleogeographic and Geodynamic Contextmentioning

confidence: 99%

Section: Paleogeographic and Geodynamic Contextmentioning

confidence: 99%

Section: Genetic Relationships With Surrounding Jurassic Volcanismmentioning

confidence: 99%

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Dating volcanic materials through biochronostratigraphic methods applied to hosting strata (example from the Iberian Chain, eastern Spain)

Cortés¹

2023

Comptes Rendus. Géoscience

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“…2). The main events that affected this region can be broadly summarized as: (1) Early Cambrian to Early Permian compression, magmatism and metamorphism (Variscan Cycle; e.g., Simancas, 2019 and references therein), (2) Mesozoic rifting and basin formation (early Alpine cycle; e.g., Gómez et al, 2019 and references therein), and (3) Cenozoic compression and mountain range development by the inversion of Mesozoic rift https://doi.org/10.5194/essd-2022-340 Preprint. Discussion started: 17 November 2022 c Author(s) 2022.…”

Section: Geological Settingmentioning

confidence: 99%

IESDB – The Iberian Evaporite Structure Database

González-Esvertit

Alcalde

Gomez‐Rivas

2022

Preprint

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Abstract. Evaporites flow in the solid state under relatively low differential stress, and have unique mechanical properties compared to other sedimentary rocks. Worldwide, they control the structural and stratigraphical architecture of many basins and orogens in ancient and active tectonic settings. Moreover, they host mineral deposits and play key roles in petroleum systems because they typically act as seals due to their low-permeability, and their flow produce structural hydrocarbon traps such as folds and faults in their encasing rocks. Additionally, evaporite structures can be used as subsurface storage sites for Geo-energy applications and nuclear waste. The systematic characterization of subsurface evaporite structures is thus key for the development of geoscience-based technologies to address societal challenges. Owing to their value, massive amounts of surface and subsurface information about (among others) the stratigraphy, structure, geochemistry, and petrophysical properties of evaporite structures and their surrounding rocks have been acquired by earth scientists, petroleum and mining exploration companies, and geological surveys. However, the data often appear segregated (i.e., in the form of database fragments, scientific articles and unpublished reports), not systematically organized, and sometimes not fully accessible. This contribution presents the Iberian Evaporite Structure DataBase (IESDB), the first comprehensive assessment that focuses on evaporite structures carried out in any region of the world. The IESDB includes information and figures for 150 evaporite structures and their surrounding rocks inventoried in Spain and Portugal, and is sourced from other six thematic databases and more than 1,500 published and unpublished scientific documents. The database targets undeformed to slightly deformed evaporite successions, outcropping and buried diapirs, evaporite-cored anticlines, evaporite-detached thrusts, and allochthonous evaporite bodies. Collated data include information about the structure, stratigraphy, event chronology, surface and subsurface data availability, mining activity, and key bibliographic references. The IESDB follows the FAIR principles of database management (Findable, Accessible, Interoperable and Reusable) and is presented as an interactive webpage and an open-access database, where indexed structures can easily be selected from a map or browser and filtered by a search engine. The IESBD intends to be a useful resource for teaching (i.e., pointing out examples of exceptional evaporite outcrops), academic and industry research (i.e., identifying knowledge deficits on specific structures or tectonic settings), and for the sustainable exploration and appraisal of mineral resources and Geo-Energy applications (i.e., representing a terminus a quo for site selection and suitability assessment). The framework provided by the IESDB is an opportunity to enhance the scientific research on Iberian evaporite structures in Spain and Portugal and to take advantage of their scientific and economic potential to tackle important societal challenges faced by these countries. The IESDB is freely available at https://iesdb.eu and the datasets can be downloaded from https://doi.org/10.20350/digitalCSIC/14586 (González-Esvertit et al., 2022).

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“…Euler stage poles represent relative motions for plates and microplates (different colors) (Angrand et al., 2020; Lundin & Doré, 2019; Reid, 1988; Sandoval et al., 2019; Sibuet et al, 2007). Necking lines outline the boundaries of the rigid continental blocks (Figure 3; Angrand et al., 2020; Gómez et al, 2019; King et al., 2020; Nirrengarten et al., 2018; Peace & Welford, 2020). Symbols refer to our and previous global kinematic models that do not separate Iberia in numerous continental blocks (Barnett Moore et al, 2016; Nirrengarten et al., 2018; Van Hinsbergen et al., 2020).…”

Section: Tectonic Settingmentioning

confidence: 99%

A kinematic reconstruction of Iberia using intracontinental strike‐slip corridors

et al. 2021

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Despite considerable progress in restoring rifted margins, none of the current kinematic models can restore the Mesozoic motion of the Iberian block in full agreement with the circum‐Iberian geology. This conflict requires a revision of the kinematic description at the onset of divergence. The circum‐Iberian region has a unique geological dataset that allows calibration and testing of kinematic reconstructions and therefore it is an ideal candidate for testing intracontinental restoration approaches. Here we define intracontinental deforming regions, referred to as strike‐slip corridors, based on alignments of Mesozoic rift basins and/or transfer zones bordering rigid continental blocks. We use these strike‐slip corridors and data from the southern N‐Atlantic and Tethys to define the motion path of the Flemish Cap, Ebro and Iberia continental blocks. The resulting Mesozoic kinematic model for the Iberian block is compatible with recently published data and interpretations describing the Mesozoic circum‐Iberian geology. Large‐scale intracontinental strike‐slip corridors may offer a valid boundary condition for reconstructing continental block motion at the onset of divergence in intracontinental settings.

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The Alpine Cycle in Eastern Iberia: Microplate Units and Geodynamic Stages

Cited by 7 publications

References 81 publications

Dating volcanic materials through biochronostratigraphic methods applied to hosting strata (example from the Iberian Chain, eastern Spain)

Dating volcanic materials through biochronostratigraphic methods applied to hosting strata (example from the Iberian Chain, eastern Spain)

IESDB – The Iberian Evaporite Structure Database

A kinematic reconstruction of Iberia using intracontinental strike‐slip corridors

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