Person:
Mas Mayoral, José Ramón

First Name

José Ramón

Last Name

Mas Mayoral

URI

https://hdl.handle.net/20.500.14352/83534

Affiliation

Universidad Complutense de Madrid

Faculty / Institute

Ciencias Geológicas

Area

Estratigrafía

Identifiers

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Now showing 1 - 10 of 28

La Cuenca de Cameros: desde la extensión Finijurásica -Eocretácica a la inversión terciaria - implicaciones en la exploración de hidrocarburos.
(Zubía. Monográfico, 2002) Mas Mayoral, José Ramón; Benito Moreno, María Isabel; Arribas Mocoroa, José; Serrano, Ana; Guimerà Rosso, Joan; Alonso Millán, Ángela; Alonso Azcárate, Jacinto
La Cuenca de Cameros, localizada en la parte NO de la Cordillera Ibérica, es una de las cuencas que constituyen el Sistema de Rift Mesozoico Ibérico o Cuenca Ibérica. Se formó en el contexto de la segunda fase de rifting intraplaca que, desde el Jurásico superior al Albiense inferior, tuvo lugar cuando Iberia se separó de Europa en relación con la apertura de la cuenca oceánica del Golfo de Vizcaya. Al mismo tiempo se formaron varias cuencas a lo largo del surco Ibérico de orientación NO-SE, siendo la de Cameros la más occidental en el Sistema de Rift Mesozoico Ibérico. El relleno de la Cuenca de Cameros (Titónico-Albiense inferior) corresponde a un gran ciclo o super-secuencia que está limitado por dos importantes discordancias en la base y en el techo. La Supersecuencia o Megaciclo Jurásico terminal - Cretácico inferior se organiza en ocho secuencias deposicionales limitadas por discontinuidades estratigráficas, este registro sedimentario es de carácter esencialmente continental (sistemas aluviales y lacustres) con sólo muy esporádicas incursiones marinas. Hay varios hechos distintivos que la diferencian de las otras cuencas del Sistema de Rift Ibérico: (1) influencia marina muy escasa; (2) retardo ele los procesos de diastrofismo, pues el rifting empezó primero en la parte SE del surco ibérico (Kimmeridgiense en la Cuenca del Maestrazgo) y después se propagó hacia el NO (Titónico en la Cuenca de Cameros); (3) sin embargo, y a pesar de su poslclon interna, esta cuenca fue la más subsidente, registrando el mayor espesor de sedimentos, llegándose a acumular 5000 m de espesor vertical de sedimentos desde el Titónico hasta el Albiense inferior, que representan hasta 9000 m de registro estratigráfico en el sentido de desplazamiento de los depocentros de las sucesivas secuencias de depósito; (4) a pesar de su gran registro sedimentario, se trata de una cuenca sinclinal que, durante su formación, no estuvo limitada por grandes fallas; y (5) esta cuenca es la única entre las cuencas mesozoicas del Rift Ibérico, en la que sus depósitos se han visto afectados por metamorfismo. Se trata de un metamorfismo de bajo y muy bajo grado que, durante el Cretácico medio-superior, afectó a la parte oriental de la cuenca. Su génesis y evolución son explicadas mediante un modelo de cuenca de bloque de techo ( <
Calcareous algae (dasycladales and charophytes), essential for the sedimentological interpretation of ancient coastal-lakes systems. The Barremian-Aptian Leza Fm., Cameros Basin, N Spain
(Third circular. Program : 29th IAS Meeting of Sedimentology. Sedimentology in the Heart of the Alps. Schlaming, September, 10-13 2012, 2012) Suárez González, Pablo; Martín Closas, C.; Quijada, Isabel Emma; Benito Moreno, María Isabel; Mas Mayoral, José Ramón
Do stromatolites Need Tides to trap Oodis? insights from the Coastal-Lake carbonates of the Leza FM (Early Cretaceous, N Spain)
(Abstract book / Tidalites 2012: 8th International Conference on tidal environments, Caen, France, july 31- august 2, 2012) Suárez González, Pablo; Quijada, Isabel Emma; Benito Moreno, María Isabel; Mas Mayoral, José Ramón
Evolution of an intra-plate rift basin: the Latest Jurassic-Early Cretaceous Cameros Basin (Northwest Iberian Ranges, North Spain)
(Geo-guías, Post-Meeting Field trips 28th IAS Meeting, Zaragoza, 2011) Mas Mayoral, José Ramón; Benito Moreno, María Isabel; Arribas Mocoroa, José; Alonso Millán, Ángela; Arribas Mocoroa, María Eugenia; Lohmann, K.C.; González Acebrón, Laura; Hernán, J.; Quijada, Isabel Emma; Suárez González, Pablo; Omodeo Salé, S.; Arenas, Concha; Pomar, Luis; Colombo, Ferrán
Multiphase quartz cementation in sandstones: Terra group (Tithonian, Cameros basin, NE Spain)
(25rd IAS Meeting of Sedimentology : Grece, Patras, 4-7 September 2007, Meeting of Sedimentology. Book and abstracts, 2007) González Acebrón, Laura; Mas Mayoral, José Ramón; Arribas Mocoroa, José; Goldstein, Robert H.; Benito Moreno, María Isabel
Textbook example of tectonically controlled carbonate sedimentation at the active margin of a rift basin: the Leza Fm (Early Cretaceous, Cameros Basin, Spain)
(Abstracts / 28th IAS Meeting of Sedimentology, Zaragoza, Julio 5-8 2011, 2011) Suárez González, Pablo; Quijada, Isabel Emma; Benito Moreno, María Isabel; Mas Mayoral, José Ramón; Omodeo Salé, S.; Bádenas, Beatriz; Aurell, Marcos; Alonso-Zarza, Ana María
Influencia del Keuper y de la estructuración tardivarisca en la arquitectura de las unidades sin-extensionales del borde norte de la Cuenca de Cameros
(Geotemas, 2016) Suárez González, Pablo; Benito Moreno, María Isabel; Mas Mayoral, José Ramón; Quijada, Isabel Emma; Campos Soto, Sonia
Este trabajo aporta nuevos datos cartográficos y sedimentológicos para aclarar la controvertida evolución tectónica extensional de la Cuenca de Cameros (N de España). La geometría actual del borde norte de la cuenca representa la continuación de lineaciones tardivariscas NO-SE y SO-NE reconocidas en la Cuenca Vasco-Cantábrica, a lo largo de las cuales se produjo una importante tectónica salina sin-extensional. En la zona de estudio, la distribución irregular de los depósitos plásticos del Keuper es interpretada aquí como debida a una movilización sin-extensional. De este modo, la estructuración tardivarisca del basamento y las movilizaciones de Keuper, asociadas a ella, permiten explicar la arquitectura y distribución de las unidades sin-extensionales del relleno de la cuenca.
Sedimentology of ancient coastal wetlands: insights from a cretaceous multifaceted depositional system
(Journal of sedimentary research, 2015) Suárez González, Pablo; Quijada, Isabel Emma; Benito Moreno, María Isabel; Mas Mayoral, José Ramón
Coastal wetlands are prominent modern environments widely studied in geomorphology and ecology, but the term ‘‘coastal wetland’’ is still barely used for the sedimentological classification of ancient deposits. The depositional system studied here (Leza Formation, Cameros Basin, Early Cretaceous, N Spain) includes diverse carbonate and clastic facies deposited at the sea–land transition, and is an illustrative example of the wide array of sedimentary environments that may occur in coastal wetlands systems. The studied system was composed mainly of carbonate water bodies whose salinity ranged from fresh to brackish and near-marine, and which had variable input of clastic material due to their lateral connection with alluvial fans. In addition, the system also included carbonate water bodies with stronger marine influence, tide-influenced oolitic areas, and relatively restricted evaporative settings. The deposits of all these environments occur alternating with each other throughout a unit 30–280 m thick, and they range from continental to marine conditions in a relatively small area (approximately 10 km 3 30 km). Thus, this sedimentological study of the Leza Fm provides an ideal opportunity to investigate challenging ancient deposits with both continental and marine features. Comparison with other modern and ancient coastal settings allows the conclusion that ‘‘coastal wetland’’ may be the most accurate sedimentological classification for the Leza Fm, since it was not part of a major coastal system (e.g., delta or estuary). A series of general sedimentological characteristics of coastal wetland deposits are gathered from the Cretaceous case study and from the modern and ancient examples examined. These characteristics include: predominance of shallow-water facies; common subaerial exposure and edaphic features; great variety of interrelated continental, transitional, and marine environments with contrasting hydrodynamic and hydrochemical conditions; and low-diversity biotic communities, including both continental and marine fossils, as well as fossils of ambiguous affinities.
Origin and significance of lamination in Lower Cretaceous stromatolites and proposal for a quantitative approach
(Sedimentary geology, 2014) Suárez González, Pablo; Quijada, Isabel Emma; Benito Moreno, María Isabel; Mas Mayoral, José Ramón
Stromatolite lamination is typically defined as alternation of dark and light laminae. Study of Lower Cretaceous stromatolites fromthe Leza Fm(N Spain) supports this statement, but recognises additional complexities in lamination that have implications for interpreting accretion processes. These stromatolites are partial analogues of present-day coarse-grained carbonate stromatolites in the Bahamas and Shark Bay (Australia) that mainly form by trapping and binding carbonate sand. The Leza examples contain both grain-rich and micrite-rich laminae with scarce particles, suggesting that they accreted both by trapping and not trapping grains. Lamination in modern and ancient coarse-grained stromatolites is commonly defined by thinmicritic crusts that formed during interruptions in accretion and separate contiguous grainy laminae (repetitive lamination). Leza examples also contain these thin hiatal crusts and locally showrepetitive lamination, but their conspicuous macroscopic lamination is defined by thicker alternating grain-rich and micrite-rich laminae (alternating lamination). This indicates that, although hiatuses in accretion occurred, change in accretion process was the main cause of macroscopic lamination. These differences in accretion processes and lamination styles between Leza examples and modern coarse-grained stromatolites may reflect differences in their environmental settings. Modern examples occur in shallow marine tidal environments, whereas Leza Fm coarse-grained stromatolites developed in ideinfluencedwater-bodies in coastal-wetlands that experienced fluctuations inwater salinity and hydrochemistry. Analysis of lamina-thickness in these Cretaceous stromatolites and similar published examples provides a quantitative approach to the processes that underlie stromatolite lamination.
Nuevas aportaciones sobre la influencia marina y la edad de los carbonatos de la Fm Leza en el sector de Préjano (SE de La Rioja). Cretácico Inferior, Cuenca de Cameros
(Geogaceta, 2010) Suárez González, Pablo; Quijada, Isabel Emma; Mas Mayoral, José Ramón; Benito Moreno, María Isabel
The Cameros Basin is a rift basin whose sedimentary infill is essentially continental with some episodes of marine influence. The Leza Fm carbonates (Enciso Gr, Barremian-Aptian) correspond to one of these episodes and their depositional environment has been described as lacustrine with occasional marine incursions. A detailed facies analysis of these carbonates in the Préjano area has led to the conclusion that the depositional environment of the Leza Fm in this area is in fact a system of coastal-lakes filled with brackish water as shown by the abundance of marine microfossils (Dasycladales algae and foraminifera) coexisting with continental microfossils (charophytes). The age of the Dasycladales found in the studied area is Barremian-Albian and thus it confirms the Barremian-Aptian age proposed for the Leza Fm and the Enciso Gr.