Synextensional mid-Cretaceous stratigraphic architecture of the eastern Basque–Cantabrian basin margin (western Pyrenees)

Bodego, Arantxa; Iriarte, Eneko; Agirrezabala, Luis M.; García‐Mondéjar, J.; López‐Horgue, Mikel A.

doi:10.1016/j.cretres.2015.01.006

Cited by 19 publications

(40 citation statements)

References 33 publications

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“…The present interpretation as a deep-marine system is in accordance with its stratigraphic location between an underlying shallowmarine interval (Rat, 1959;Campos, 1979;Bodego et al, 2015) and the overlying hemipelagic deposits (Feuillée, 1967;Mathey, 1987), in a broader scenario of an Aptian−Albian transgression during a main extensional phase.…”

Section: Depositional Modelmentioning

confidence: 61%

“…However, Agirrezabala & García-Mondéjar (1994) evidenced that deep-marine coarse-grained sedimentation occurred in the Albian of the Basque-Cantabrian basin (BCB), and suggested the presence of a narrow shelf between the emerged source area and the deep-marine basin. In this work a new sedimentological interpretation for the Andatza Conglomerate Formation (Bodego et al, 2015) is proposed, differing from that of García-Mondéjar (1982), who suggested a fluvial to fan-delta environment for the Andatza conglomerates and located the type series in the vicinity of the Oiartzun locality. However, that succession is nowadays considered to belong to the Oiartzun Formation (Fernández-Carrasco et al, 1990b).…”

Section: Introductionmentioning

confidence: 95%

“…The main extensional phase occurred during the Aptian−Albian and coincided with a generalized transgression (Haq, 1988) leading to the sedimentation of shallow-marine carbonateplatform and basinal limestones and marlstones and estuarine and shelf sandstones and mudstones during the early Aptian to early Albian. During the late Albian, increasing subsidence led to the deposition of deep-marine sandstones, mudstones, conglomerates and breccias in the deepest basinal areas adjacent to the massif, whereas coetaneous braid-plain delta to shallow-marine conglomerates, sandstones, mudstones and limestones were deposited at the margins of the Palaeozoic massif (Rat, 1959;Bodego et al, 2015). Finally, Upper Cretaceous hemipelagic marlstones and limestones overlie the described sedimentary succession.…”

Section: Geological Setting and Stratigraphymentioning

confidence: 99%

“…Nemec & Steel, 1988;Stow et al, 1996). Coetaneous braid-plain deltas (Oiartzun Fm;Fernández-Carrasco et al, 1990b;Bodego et al, 2015) have been described a few kilometres westward from the study area, as part of the marginal infill of the LSB. Thus, it is reasonable to think that similar sedimentary systems fed the Andatza turbidite system from the north.…”

Section: Source Of Sedimentsmentioning

confidence: 99%

“…1a). The LSB shows a thick (up to 3000 m) Mesozoic succession (Bodego & Agirrezabala, 2013;Bodego et al, 2015).…”

Section: Geological Setting and Stratigraphymentioning

confidence: 99%

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El sistema turbidítico conglomerático de Andatza (Pirineos occidentales): Estratigrafía, sedimentología y control estructural

Bodego

Agirrezabala

2017

Estud. geol.

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En este trabajo se describe la estratigrafía y sedimentología de la Formación Conglomerados de Andatza. Mediante el análisis de facies se han interpretado tres asociaciones de facies principales correspondientes a un sistema turbidítico (de grano grueso) y al talud: un sistema turbidítico interno (o cañón), un talud fangoso de alto gradiente y otro de bajo gradiente. La distribución cartográfica de las asociaciones de facies junto con el análisis de paleocorrientes describen un modelo sedimentario de sistema turbidítico de grano grueso en forma de “L” para los Conglomerados de Andatza, cuya morfología fue controlada por fallas normales sinsedimentarias de basamento. El carácter grosero del tamaño de grano de este sistema turbidítico indica la proximidad del área fuente de los conglomerados, que alimentaría el cañón turbidítico desde el norte a través de una estrecha plataforma marina.

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Section: Depositional Modelmentioning

confidence: 61%

Section: Introductionmentioning

confidence: 95%

Section: Geological Setting and Stratigraphymentioning

confidence: 99%

Section: Source Of Sedimentsmentioning

confidence: 99%

“…1a). The LSB shows a thick (up to 3000 m) Mesozoic succession (Bodego & Agirrezabala, 2013;Bodego et al, 2015).…”

Section: Geological Setting and Stratigraphymentioning

confidence: 99%

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El sistema turbidítico conglomerático de Andatza (Pirineos occidentales): Estratigrafía, sedimentología y control estructural

Bodego

Agirrezabala

2017

Estud. geol.

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Mantle exhumation and metamorphism in the Basque‐Cantabrian Basin (NSpain): Stable and clumped isotope analysis in carbonates and comparison with ophicalcites in the North‐Pyrenean Zone (Urdach and Lherz)

DeFelipe

Pedreira

Pulgar

et al. 2017

Geochem Geophys Geosyst

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The presence of ophicalcites in serpentinized peridotites together with fragments of these rocks in Cretaceous breccias along several North-Pyrenean basins led to the interpretation of complete mantle exhumation to the seafloor. The westernmost outcrop of peridotites in the Pyrenean-Cantabrian belt is located in Ziga (eastern Basque-Cantabrian Basin), associated to a band of HT metamorphism related to the Leiza fault (Marble Unit). We present a petrological and geochemical study of the marbles and Ziga peridotite-hosted calcite, including standard stable isotope composition and clumped isotope geothermometry. These isotopic techniques allow the determination of different types of formational fluids and crystallization temperatures, and are a useful tool for studying carbonation processes in hyperextended basins. Fieldwork and analytical studies lead us to conclude that during the opening of the Bay of Biscay, mantle rocks were unroofed at the base of the sedimentary pile of the eastern Basque-Cantabrian Basin. However, the ophicalcite veins were recrystallized from meteoric fluids at low temperatures (498C). The primary carbonate phase may have been formed either during the mid-Cretaceous unroofing of the mantle or in a post-exhumation stage. The process of mantle exhumation was accompanied with HT-LP metamorphism and fluid circulation along major faults that reset the marine isotopic signature in the nearest marbles. For comparison, ophicalcites from Urdach and Lherz (North-Pyrenean Zone) were included in the clumped isotope study. Results show that they were recrystallized from hot (200-2308C), saline fluids, and from meteoric fluids at near ambient temperatures (32-428C), respectively.

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Notes to Comment on “Evolutionary trend of Cenomanian alveolinids from Zagros Basin, SW of Iran” by Consorti and Vicedo (2022) in Geological Journal

et al. 2022

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In this manuscript, Notes to comment on "Evolutionary trend of Cenomanian alveolinids from Zagros Basin, SW of Iran" by Consorti and Vicedo (2022) in Geological Journal, will be answered. Received data coincided with the previous determination of the alveolinids microscopic investigation and corresponded with the biostratigraphical database remarkably. No contaminated data were recognized in this work and the faunal assemblage in the Sarvak Formation was checked in detail. Both Cenomanian shallow water and pelagic sediments of the Sarvak Formation in the Zagros Basin are well-known oil reservoir rocks. The Formation has been studied from the point of view of biostratigraphy, facies analysis, and sequence stratigraphy (Arampour, Afghah, &

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Synextensional mid-Cretaceous stratigraphic architecture of the eastern Basque–Cantabrian basin margin (western Pyrenees)

Cited by 19 publications

References 33 publications

El sistema turbidítico conglomerático de Andatza (Pirineos occidentales): Estratigrafía, sedimentología y control estructural

El sistema turbidítico conglomerático de Andatza (Pirineos occidentales): Estratigrafía, sedimentología y control estructural

Mantle exhumation and metamorphism in the Basque‐Cantabrian Basin (NSpain): Stable and clumped isotope analysis in carbonates and comparison with ophicalcites in the North‐Pyrenean Zone (Urdach and Lherz)

Notes to Comment on “Evolutionary trend of Cenomanian alveolinids from Zagros Basin, SW of Iran” by Consorti and Vicedo (2022) in Geological Journal

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