Transition from deep-marine lower-slope erosional channels to proximal basin-floor stacked channel–levée–overbank deposits, and syn-sedimentary growth structures, Middle Eocene Banastón System, Ainsa Basin, Spanish Pyrenees

Bayliss, Nicole; Pickering, Kevin T.

doi:10.1016/j.earscirev.2014.11.015

Cited by 22 publications

(26 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This might suggest a likely initiation and development for these channels in a slope environment (e.g. Figueiredo et al ., ; Bayliss & Pickering, 2015a) which presumably characterized the earlier phases of the GF basin evolution (Fig. A).…”

Section: Discussionmentioning

confidence: 99%

Multi‐scale analysis of a migrating submarine channel system in a tectonically‐confined basin: The Miocene Gorgoglione Flysch Formation, southern Italy

et al. 2018

View full text Add to dashboard Cite

The Miocene Gorgoglione Flysch Formation records the stratigraphic product of protracted sediment transfer and deposition through a long‐lived submarine channel system developed in a narrow and elongate thrust‐top basin of the Southern Apennines (Italy). Channel‐fill deposits are exposed in an outcrop belt approximately 500 m thick and 15 km long, oriented oblique to the palaeoflow, which was roughly south‐eastward. These exceptional exposures of channel‐fill strata allow the stacking architectures and the evolution of the channel system to be analyzed at multiple scales, enabling the effects of syn‐sedimentary thrust tectonics and basin confinement on the depositional system development to be deciphered. Two end‐member types of elementary channel architecture have been identified: high‐aspect‐ratio, weakly‐confined channels, and low‐aspect‐ratio, incisional channels. Their systematic stacking results in a complex pattern of seismic‐scale depositional architectures that determines the stratigraphic framework of the deep‐water system. From the base of the succession, two prominent channel complex sets have been recognized, namely CS1 and CS2, consisting of amalgamated incisional channel elements and weakly‐confined channel elements. These channelized units are overlain by isolated incisional channels, erosional into mud‐prone slope deposits. The juxtaposition of different channel architectures is interpreted to have been governed by regional thrust‐tectonics, in combination with a high subsidence rate that promoted significant aggradation. In this scenario, the alternating ‘in sequence’ and ‘out of sequence’ tectonic pulses of the basin‐bounding thrusts controlled the activation of coarse‐clastic inputs in the basin and the resulting stacking architectures of channelized units. The tectonically‐driven confinement of the depositional system limited the lateral offset in channel stacking, preventing large‐scale avulsions. This study represents an excellent opportunity to analyze the stratigraphic evolution of a submarine channel system in tectonically‐active settings from an outcrop perspective. It should find wide applicability in analogous depositional systems, whose stratigraphic architecture has been influenced by tectonically‐controlled lateral confinement and associated lateral tilting.

show abstract

Section: Discussionmentioning

confidence: 99%

Multi‐scale analysis of a migrating submarine channel system in a tectonically‐confined basin: The Miocene Gorgoglione Flysch Formation, southern Italy

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Pickering & Cantalejo (2015) have recently proposed a deep-marine hierarchical classification based on outcrop studies of the Eocene Ainsa Basin (Spanish Pyrenees). This hierarchy has since been applied by the same research group to additional datasets from the same basin (Bayliss & Pickering, 2015a;2015b;. The devised hierarchy relies on correlation of key stratigraphic surfaces at a variety of scales, allowing bounding surfaces for architectural elements to be defined.…”

Section: Pickering and Cantalejo 2015mentioning

confidence: 99%

Hierarchical classifications of the sedimentary architecture of deep-marine depositional systems

Cullis

Colombera

Patacci

et al. 2018

Earth-Science Reviews

View full text Add to dashboard Cite

show abstract

“…DZ sample locations denoted by stars. Composite measured section modified from Clark et al [] compiled from sections measured in Clark [], Clark and Pickering [], Dreyer et al [], Bayliss and Pickering , [, ], and Honegger [].…”

Section: Introductionmentioning

confidence: 99%

Detrital zircon (U‐Th)/(He‐Pb) double‐dating constraints on provenance and foreland basin evolution of the Ainsa Basin, south‐central Pyrenees, Spain

Thomson

Stöckli

Clark³

et al. 2017

Tectonics

View full text Add to dashboard Cite

South central Pyrenean foreland basin fill preserves the eroded remnants of the early stages of fold‐thrust belt evolution and topographic growth. Specifically, the Eocene Hecho Group in the Ainsa Basin contains a succession of turbiditic channels and levees deposited in the transition zone between the fluvial‐deltaic and deep marine depozones. Detailed isotopic provenance analyses allow for the reconstruction of sediment sources of the ancient sediment routing systems. This study presents 2332 new detrital zircon (DZ) U‐Pb ages and 246 new DZ double‐dated (U‐Th)/(He‐Pb) ages from 19 turbiditic and fluvio‐deltatic sandstones in the Ainsa Basin. These data indicate a progressive provenance shift from Cadomian/Caledonian plutonic and metamorphic rocks of the eastern Pyrenees to Variscan plutonic rocks in the central Pyrenees. Minor sediment contributions from sources located to the S and SE of the basin are seen throughout the section. New DZ (U‐Th)/He results identify four main cooling events: Pyrenean orogenesis (~56 Ma), initial basin inversion (~80 Ma), Cretaceous rifting (~100 Ma), and pre‐Mesozoic cooling ages related to earlier tectonic phases. This study imposes new constraints on the paleogeographic evolution of the Pyrenees and illustrates that high‐frequency fluctuations in sediment delivery processes and sediment routing introduce superimposed noise upon the basin‐scale long‐term provenance evolution during orogenesis.

show abstract

Transition from deep-marine lower-slope erosional channels to proximal basin-floor stacked channel–levée–overbank deposits, and syn-sedimentary growth structures, Middle Eocene Banastón System, Ainsa Basin, Spanish Pyrenees

Cited by 22 publications

References 21 publications

Multi‐scale analysis of a migrating submarine channel system in a tectonically‐confined basin: The Miocene Gorgoglione Flysch Formation, southern Italy

Multi‐scale analysis of a migrating submarine channel system in a tectonically‐confined basin: The Miocene Gorgoglione Flysch Formation, southern Italy

Hierarchical classifications of the sedimentary architecture of deep-marine depositional systems

Detrital zircon (U‐Th)/(He‐Pb) double‐dating constraints on provenance and foreland basin evolution of the Ainsa Basin, south‐central Pyrenees, Spain

Contact Info

Product

Resources

About