Sandstone Petrography of Continental Depositional Sequences of an Intraplate Rift Basin: Western Cameros Basin (North Spain)

Arribas, José; Alonso, Ángela; Mas, Ramón; Tortosa, A.; Rodas, M.; Barrenechea, José F.; Alonso-Azcárate, Jacinto; Artigas, R.

doi:10.1306/082602730309

Cited by 64 publications

(49 citation statements)

References 38 publications

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“…1), a rapidly subsiding extensional and continental basin developed during the Late Jurassic and Early Cretaceous, which was filled from the Tithonian to middle Albian by up to 5 km of fluvial and lacustrine deposits with rare marine incursions Guimerá et al 1995;Arribas et al 2003). These deposits overlie up to 1.5 km of Triassic and Jurassic rocks Guimerá et al 1995).…”

Section: Geologic Setting and Stratigraphic Frameworkmentioning

confidence: 99%

Micro-Sized Dolomite Inclusions in Ferroan Calcite Cements Developed During Burial Diagenesis of Kimmeridgian Reefs, Northern Iberian Basin, Spain

Benito¹,

Lohmann²,

Mas³

2006

Journal of Sedimentary Research

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Burial diagenesis of the Upper Jurassic Torrecilla Reef Complex is recorded by a complex paragenetic sequence initiated with emplacement of ferroan calcite cements and followed by the precipitation of ferroan saddle dolomite. Ferroan calcite cements contain micro-sized dolomite inclusions (MDIs). Elemental and isotopic compositions of MDIs are virtually indistinguishable from those of ferroan saddle dolomite cements. In contrast to other scenarios for the formation of microdolomite inclusions that invoke either a magnesian calcite precursor or incomplete dedolomitization, the paragenetic relations of MDIs to their host ferroan calcite and their geochemical composition implies formation by fine-scale burial replacement of ferroan calcite by fluids associated with the emplacement of ferroan saddle dolomite.Petrographic observations and mass-balance considerations suggest that it is unlikely that Fe and Mg incorporated into ferroan dolomite could have been derived from the cannibalization of the reefal host rock. Rather, dolomitizing fluids were likely associated with the hydrothermal, low-grade metamorphic event that affected the Cameros Basin during the middle to Late Cretaceous. Interaction of these fluids with preexisting burial cements produced MDIs in the ferroan calcites.

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Section: Geologic Setting and Stratigraphic Frameworkmentioning

confidence: 99%

Micro-Sized Dolomite Inclusions in Ferroan Calcite Cements Developed During Burial Diagenesis of Kimmeridgian Reefs, Northern Iberian Basin, Spain

Benito¹,

Lohmann²,

Mas³

2006

Journal of Sedimentary Research

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“…The Cameros Basin was formed during Late Jurassic to Early Cretaceous intraplate rifting in Iberia as a consequence of the opening of the North Atlantic Ocean. The infill of this extensional basin corresponds to a large cycle or super-sequence divided into eight depositional sequences, and it registers high subsidence and accumulation rates, with a stratigraphic record of more than 9000 m of sediments from the Tithonian to the early Albian (Mas et al 1993(Mas et al , 2002Arribas et al 2003) (Fig. 2).…”

Section: Geologic Settingmentioning

confidence: 99%

Depositional Depth of Laminated Carbonate Deposits: Insights From the Lower Cretaceous Valdeprado Formation (Cameros Basin, Northern Spain)

Quijada¹,

Suárez-González²,

Benito³

et al. 2013

Journal of Sedimentary Research

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The Lower Cretaceous (Berriasian) Valdeprado Formation (Cameros Basin, northern Spain) contains more than 900 m of laminated carbonates and pseudomorphs after sulfates. Traditionally, many sedimentary packages of different ages and lithologies have been interpreted as deep-water deposits based essentially on the abundance of laminations and the absence of subaerial exposure features. In contrast, the Valdeprado Formation provides an example of a shallow-water deposit dominated by laminations with scarce evidence of subaerial exposure, and gives criteria to solve the challenge of distinguishing shallow-water and deep-water, ancient laminated deposits.The two most abundant facies all along the Valdeprado Formation are: a) parallel-laminated limestone, formed by alternating carbonate mudstone and calcite and quartz pseudomorphs after displacive gypsum, and b) graded-laminated limestone, consisting of quartz, mica, ostracodes, and pseudomorphs after detrital gypsum grains at the base, which changes gradually upwards to carbonate mudstone. Parallel-laminated limestone and graded-laminated limestone could have been deposited in either deep or shallow environments as a result of salinity fluctuations driven by alternation of flooding and evaporation and by sediment resuspension processes, respectively. Subaerial exposure features, such as desiccation mudcracks, are scarce in most of the succession, except in a few meter-scale stratigraphic intervals where they are very abundant. Interestingly, in these intervals desiccation cracks are present at the tops of several successive laminae (up to 25 mudcracked laminae per meter of deposit), indicating that, at least during those periods of time, deposition occurred in shallow water bodies that were desiccated frequently. In the upper part of the stratigraphic section, parallel-laminated and graded-laminated limestones are associated with current-ripple and wave-ripple cross-laminated arenites, and ostracode mudstone to wackestone with centimeter-size pseudomorphs after lenticular gypsum, and abundant desiccation mudcracks and tepees, which also suggest sedimentation in shallow-water environments. Moreover, the laminated carbonates display continuous, parallel layering, and the same facies along the 40-km-long outcropping area. These deposits are directly interbedded with, and pass laterally to, siliciclastic sandy-muddy flat deposits in the western area of the basin, without clinoforms, slump structures, or slide masses in between. All of these features suggest deposition in shallow, perennial carbonate-sulfate water bodies and their peripheral mudflats, developed in a flat-bottomed basin with no marked gradients.

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“…Los sistemas extensionales se caracterizan por multifases de reactivación de sus fallas, propiciando la erosión, la redistribución de los sedimentos dentro de la cuenca y la composición de las areniscas (Arribas et al, 2003;González-Acebrón et al, 2007;Marsaglia et al, 2007). La primera etapa de los rift y cuencas pull-apart inicia con la erosión de las rocas de cobertura preexistentes y en menor grado de las rocas que conforman el basamento.…”

Section: Introductionunclassified

“…Las cuencas asociadas a sistemas pull-apart y sistemas de rift generalmente son rellenadas por el material erosionado de los altos que la bordean, siendo esto el resultado de la extensión litosférica y levantamiento de bloques asociado con reactivación de fallas. Por consiguiente, la composición de los sedimentos clásticos depende tanto de la naturaleza de los bloques de basamento como de la actividad tectónica y características petrográficas y diagenéticas de cuencas dentro un sistema extensional (Rift o pull-apart; Zuffa et al, 1980;Marsaglia, 1991;Garzanti et al, 2001;Critelli et al, 2002, Arribas et al, 2003González-Acebrón et al, 2007).…”

Section: Introductionunclassified

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Petrografía y procedencia del miembro arenoso Galeana (Formación Taraises, Valanginiano - Hauteriviano temprano), Sierra Madre Oriental, NE México

Díaz¹,

Suástegui²,

Jenchen³

2012

BSGM

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Petrografía y procedencia del miembro arenoso Galeana, Sierra Madre Oriental, NE México 335 ResumenLos sistemas extensionales se caracterizan por multifases de reactivación de sus fallas que propician la erosión y redistribución de los sedimentos dentro de la cuenca, influyendo incluso en la composición de las areniscas. El análisis de procedencia en secuencias sedimentarias depositadas dentro de este tipo de cuencas, permite documentar las etapas de evolución de estos ambientes, así como también la composición de los bloques del basamento que se encuentran aledaños o soterrados. El presente trabajo documenta por medio de un riguroso análisis petrográfico y un conteo de puntos en 58 muestras de areniscas del miembro arenoso Galeana (Formación Taraises; Cretácico Temprano), la composición y ubicación de las áreas fuentes que propiciaron su origen, además de la evolución petrotectónica de la porción sur de la Fosa de Monterrey durante el Cretácico Temprano. Petrográficamente, las areniscas del miembro arenoso Galeana pueden ser divididas en tres petrofacies y dos secuencias de procedencia que están estrechamente relacionadas con el ambiente sedimentario en que fueron depositadas. La petrofacies A "sedimentoclástica" corresponde a depósitos de facies mareales y representa la erosión de rocas preexistentes del pre-Cretácico Temprano, con una influencia moderada de rocas del basamento de composición granítica y/o granodiorítica y esquistosa. La petrofacies B "sedimento-plutonoclástica" corresponde a un cambio lateral de facies de la petrofacies A (norte-sur), que muestra un mayor índice de reciclamiento asociado al ambiente sedimentario de dunas subacuosas, cambios en la composición del área fuente, y reciclamiento interno (intraformacional o canibalismo). La petrofacies C marca el depósito de una segunda secuencia de procedencia representada por un cambio lateral de las petrofacies A y B con dirección Este-Oeste. Las areniscas representan la mayor exposición y erosión profunda de las rocas del basamento.Las diferencias composicionales de los ensambles líticos sugieren un transporte sedimentario durante el Cretácico Temprano, desde el Archipiélago de Tamaulipas e Isla de Terán en el este hacia la Fosa de Monterrey, que propició la erosión de las rocas que hasta ese momento conformaban la cubierta sedimentaria y en menor grado de rocas plutónicas, volcánicas y metamórficas de grado bajo a medio. Dicha erosión dio paso al depósito de la primera secuencia de procedencia (petrofacies A y B). Por otra parte, el Hauteriviano temprano representa a la segunda secuencia de procedencia (petrofacies C), y al tiempo de mayor exhumación de bloques. Por consiguiente, se propone que durante el Valanginiano temprano-Hauteriviano medio, la Fosa de Monterrey estuvo expuesta a procesos extensivos relacionados con sistemas laterales de tipo strike-slip que propiciaron la exhumación de rocas que conforman el basamento.

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Sandstone Petrography of Continental Depositional Sequences of an Intraplate Rift Basin: Western Cameros Basin (North Spain)

Cited by 64 publications

References 38 publications

Micro-Sized Dolomite Inclusions in Ferroan Calcite Cements Developed During Burial Diagenesis of Kimmeridgian Reefs, Northern Iberian Basin, Spain

Micro-Sized Dolomite Inclusions in Ferroan Calcite Cements Developed During Burial Diagenesis of Kimmeridgian Reefs, Northern Iberian Basin, Spain

Depositional Depth of Laminated Carbonate Deposits: Insights From the Lower Cretaceous Valdeprado Formation (Cameros Basin, Northern Spain)

Petrografía y procedencia del miembro arenoso Galeana (Formación Taraises, Valanginiano - Hauteriviano temprano), Sierra Madre Oriental, NE México

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