Evolution of a continental collision belt: ECORS-Pyrenees crustal balanced cross-section

Muñoz, Josep Antón

doi:10.1007/978-94-011-3066-0_21

Cited by 600 publications

(888 citation statements)

References 40 publications

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“…Length scaling between the physical model and the natural prototype follows the theory described by Hubbert (1937) and discussed by Vendeville et al (1987) and McClay & Ellis (1987). Hubbert (1937) demonstrated that to set up models "as similar as (Muñoz, 1992). possible to their natural equivalents", it is necessary to produce geometric, kinematic and dynamic similarities. In an elastic body, length strain is proportional to stress and is time independent.…”

Section: Experimental Methods and Proceduresmentioning

confidence: 79%

“…2). Using a balanced cross-section, Muñoz (1992) presented a basement-involved antiformal stack in the axial zone of the Pyrenean continental collision belt (Fig. 3).…”

Section: Introductionmentioning

confidence: 99%

“…The boundary conditions described by Jadoon et al (1992) and Muñoz (1992), i.e. a slightly dipping basal detachment and control by basement structures, respectively, are also examined.…”

Section: Introductionmentioning

confidence: 99%

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Geometry and kinematics of experimental antiformal stacks

Gomes

Ferreira

2000

An. Acad. Bras. Ciênc.

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Sandbox experiments with different boundary conditions demonstrate that antiformal stacks result from a forward-breaking thrust sequence. An obstacle blocks forward thrust propagation and transfers the deformation back to the hinterland in a previously formed true duplex. In the hinterland, continued shortening causes faults to merge toward the tectonic transport direction until the older thrusts override the younger thrusts. In experiments using thin sand layers or high basal friction, shortening is accommodated by a cyclic process of thrusting, back rotation of the newly formed thrust combined with strong vertical strain, and nucleation of a new thrust. Continuous deformation produces an antiformal stack through progressive convergence of branch lines. key words: basement structures, slightly dipping basal detachment, sand layer thickness, basal friction.

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Section: Experimental Methods and Proceduresmentioning

confidence: 79%

“…2). Using a balanced cross-section, Muñoz (1992) presented a basement-involved antiformal stack in the axial zone of the Pyrenean continental collision belt (Fig. 3).…”

Section: Introductionmentioning

confidence: 99%

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Geometry and kinematics of experimental antiformal stacks

Gomes

Ferreira

2000

An. Acad. Bras. Ciênc.

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“…1 A). The uplift creating the Pyrenees some 40 million years ago involved material of much older age (Muñoz 1992;Teixell 1998;ICC 2003). Running from Ordovician to Devonian and including Tardy-Hercynian intrusions, the stratigraphy exhibits a dense and complex network of faults.…”

Section: General Settingsmentioning

confidence: 99%

Morpho-fluvial analysis of headwater catchments: an example from the Central-Eastern Pyrenees

Chevalier¹,

Medina²,

Hürlimann³

et al. 2014

Environ Earth Sci

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Geomorphometry of headwater catchments has been poorly reported in the Central-Eastern Pyrenees. This study presents a series of parameters obtained for Central-Eastern Pyrenean headwater catchments. The database consists of 3005 1 st -and 655 2 nd -order catchments. These catchments have been digitalised, identified, and attributed a value for each parameter. The parameters investigated are divided into three groups: relative to catchments, relative to streams and morpho-hydrological ratios. Histograms reveal similarities between orders for some parameters such as mean slope or orientation, while stream orders seem to condition metrical parameters (area, perimeter, stream length). Streams have been fragmented to assess different values for slope.Values for slope over a small portion of the stream near the outlet seem to show clearer differences between orders. With regard to morpho-hydrological ratios, catchments show better distinctions between orders for the Melton and Lemniscate ratios than for the form factor or the basin elongation. The power-law relationship between catchment area and stream length recognised for large fluvial systems is shown here to follow a linear trend at small values. An attempt to identify the morpho-structural regionalisation differentiating the Axial Pyrenees from the pre-Pyrenees is made based on the parameters. However, applying the methodology to other environments could improve the context of the current results. Similar studies could also benefit from the development of such databases.

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“…El orógeno de tipo Andino (centro) está basado en el modelo actual de los Andes y un ejemplo fósil puede ser el sistema Laramídico del Cretácico Tardío-Paleoceno del poniente de Norteamérica; la convección de la astenósfera contribuye a la subducción a escala regional del antepaís, diferenciándolo del resto de situaciones de la cuencas de este tipo. El orógeno de inversión o transpresional (abajo) se caracteriza por estar fl anqueado en ambos lados por cuencas de antepaís; este último tipo está basado en el modelo de los Pirineos (Muñoz, 1992; Bradley y Leach, 2003).…”

Section: Cuenca De Antepaís 200 Kmunclassified

Depósitos de Pb-Zn-Cu-Ba-F-Sr epigenéticos estratoligados en series sedimentarias en relación con salmueras de cuenca: depósitos de tipo “Mississippi Valley” (MVT) y similares en México

Tritlla¹,

Levresse²,

Corona-Esquivel³

et al. 2006

BSGM

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ResumenLos depósitos de Pb-Zn-Cu-Ba-F-Sr epigenéticos estratoligados en series sedimentarias han constituido una de las mayores fuentes de metales en la historia de la humanidad. Aún en la actualidad continuan siendo un objetivo prioritario de exploración para las compañias mineras, debido tanto a su fácil metalurgia como a los grandes tonelajes que presentan los distritos clasifi cados bajo esta tipología.En México existen todo un conjunto de mineralizaciones de Pb-Zn-Ba-F que han sido sistemáticamente consideradas como pertenecientes a tipologías diversas (skarns, reemplazamientos de alta temperatura, epitermales, etc.) que, bajo una nueva pespectiva, responden a un modelo de circulación de fl uidos de cuenca enriquecidos en metales, fl úor y bario durante su tránsito por la serie sedimentaria. Estos fl uidos han dado lugar a un conjunto de cuerpos mineralizados estratoligados que aparecen encajonados dentro de las series de plataforma carbonatada mesozoicas del centro, N y NE de México. Típicamente, no están asociados genéticamente a magmatismo alguno, no causan una alteración muy acusada en la roca encajonante, suelen estar asociados a la presencia de materia orgánica (hidrocarburos líquidos, bitúmen), presentan una mineralogía muy sencilla, a menudo casi monominerálica (barita, celestina, fl uorita, esfalerita, galena) y suelen presentar temperaturas de formación dentro del rango de 90-150 °C con salinidades variables. Todo este conjunto de características hacen a estos depósitos plenamente comparables con los MVT del subtipo Alpino-Apalachiano.En este artículo se lleva a cabo una revisión sobre el conocimiento que se tiene sobre este tipo de depósitos a nivel global para, después, pasar a discutir la presencia de esta tipología en suelo mexicano y sus características geológicas y geoquímicas más relevantes.Palabras clave: Depósitos de tipo MVT, generalidades, geoquímica, depósitos en México, estado del arte. AbstractThe low temperature, epigenetic and stratabound Pb-Zn-Cu-Ba-F-Sr-bearing ore deposits enclosed within sedimentary series have been one of the major sources of metals in history. Presently, exploration companies still fi nd these deposits

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Evolution of a continental collision belt: ECORS-Pyrenees crustal balanced cross-section

Cited by 600 publications

References 40 publications

Geometry and kinematics of experimental antiformal stacks

Geometry and kinematics of experimental antiformal stacks

Morpho-fluvial analysis of headwater catchments: an example from the Central-Eastern Pyrenees

Depósitos de Pb-Zn-Cu-Ba-F-Sr epigenéticos estratoligados en series sedimentarias en relación con salmueras de cuenca: depósitos de tipo “Mississippi Valley” (MVT) y similares en México

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