Tectonic control on sediment sources in the Jaca basin (Middle and Upper Eocene of the South-Central Pyrenees)

Roigé, Marta; Gómez‐Gras, David; Remacha, E.; Daza, Raquel; Boya, Salvador

doi:10.1016/j.crte.2015.10.005

Cited by 29 publications

(37 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A number of petrographic, geochemical, and stratigraphic studies have been conducted to address the sediment provenance of the Hecho Group turbidites [ Fontana et al , ; Gupta and Pickering , ; Heard and Pickering , ; Mansurbeg et al , ; Caja et al , ; Roigé et al , ]. Caja et al [] showed that the Ainsa Basin was initially filled with quartz‐rich arenites (Figols Formation), followed by calclithites and hybrid arenites as feldspars, lithic fragments, and carbonate grains increased, sourced from the uplifting Paleozoic basement and emerging fold‐thrust structures.…”

Section: Geologic Backgroundmentioning

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

Section: Geologic Backgroundmentioning

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

show abstract

“…In the northern part of the basin, the platform carbonates culminate with the lower Ypresian Alveolina limestone and are followed by the upper Ypresian to lower Bartonian turbidites of the Hecho Group, about 4000 m thick [e.g., Mutti et al, 1988;Remacha et al, 2003;Oms et al, 2003;Das Gupta and Pickering, 2008;Caja et al, 2009]. Much of the Hecho Group was fed axially from the east, but the uppermost turbidites show a northern provenance [Remacha et al, 1987[Remacha et al, , 1998Roigé et al, 2016]. To the south, the turbidites onlap the coeval Boltaña and Guara platform limestones [Labaume et al, 1985;Puigdefàbregas and Souquet, 1986;Barnolas and Teixell, 1994;Mochales et al, 2012;Muñoz et al, 2013].…”

Section: 1002/2016tc004192mentioning

confidence: 99%

“…The Lutetian-Bartonian corresponds to the period of the propagation of the Eaux-Chaudes/Monte Perdido thrusting in the Jaca Basin, dated by growth strata on the Añisclo and Boltaña anticlines and contemporaneous with the deposition of the upper part of the turbidite succession and lower part of the overlying deltaic systems (Larrés marl and Sabiñánigo sandstone). While the Lutetian turbidites are fed from the east, the northern provenance of the uppermost turbidites, of early Bartonian age, is the first record in the basin of the tectonic uplift related to the Eaux-Chaudes thrusting [Roigé et al, 2016]. On the studied section, the thrust front corresponds to the Ordesa thrust (laterally equivalent to the Añisclo and Boltaña anticlines), which splays upward in the northern part of the Hecho Group turbidite wedge, with development of chevron folding and related cleavage.…”

Section: Evolution Of the South Pyrenean Wedgementioning

confidence: 99%

Tectonothermal history of an exhumed thrust‐sheet‐top basin: An example from the south Pyrenean thrust belt

et al. 2016

View full text Add to dashboard Cite

This paper presents a new balanced structural cross section of the Jaca thrust‐sheet‐top basin of the southern Pyrenees combined with paleothermometry and apatite fission track (AFT) thermochronology data. The cross section, based on field data and interpretation of industrial seismic reflection profiles, allows refinement of previous interpretations of the south directed thrust system, involving the identification of new thrust faults, and of the kinematic relationships between basement and cover thrusts from the middle Eocene to the early Miocene. AFT analysis shows a southward decrease in the level of fission track resetting, from totally reset Paleozoic rocks and lower Eocene turbidites (indicative of heating to Tmax > ~120°C), to partially reset middle Eocene turbidites and no/very weak resetting in the upper Eocene‐lower Oligocene molasse (Tmax < ~60°C). AFT results indicate a late Oligocene‐early Miocene cooling event throughout the Axial Zone and Jaca Basin. Paleomaximum temperatures determined by vitrinite reflectance measurements and Raman spectroscopy of carbonaceous material reach up to ~240°C at the base of the turbidite succession. Inverse modeling of AFT and vitrinite reflectance data with the QTQt software for key samples show compatibility between vitrinite‐derived Tmax and the AFT reset level for most of the samples. However, they also suggest that the highest temperatures determined in the lowermost turbidites correspond to a thermal anomaly rather than burial heating, possibly due to fluid circulation during thrust activity. From these results, we propose a new sequential restoration of the south Pyrenean thrust system propagation and related basin evolution.

show abstract

“…A general view of this belt's geological structure can be found in [39,[42][43][44][45]. Figure 1 presents a general sketch of the geological context.…”

Section: Geological Settingsmentioning

confidence: 99%

GIS-Based Mapping of Seismic Parameters for the Pyrenees

Amaro-Mellado

Bui

2020

IJGI

View full text Add to dashboard Cite

In the present paper, three of the main seismic parameters, maximum magnitude -Mmax, b-value, and annual rate -AR, have been studied for the Pyrenees range in southwest Europe by a Geographic Information System (GIS). The main aim of this work is to calculate, represent continuously, and analyze some of the most crucial seismic indicators for this belt. To this end, an updated and homogenized Poissonian earthquake catalog has been generated, where the National Geographic Institute of Spain earthquake catalog has been considered as a starting point. Herein, the details about the catalog compilation, the magnitude homogenization, the declustering of the catalog, and the analysis of the completeness, are exposed. When the catalog has been produced, a GIS tool has been used to drive the parameters’ calculations and representations properly. Different grids (0.5 × 0.5° and 1 × 1°) have been created to depict a continuous map of these parameters. The b-value and AR have been obtained that take into account different pairs of magnitude–year of completeness. Mmax has been discretely obtained (by cells). The analysis of the results shows that the Central Pyrenees (mainly from Arudy to Bagnères de Bigorre) present the most pronounced seismicity in the range.

show abstract

Tectonic control on sediment sources in the Jaca basin (Middle and Upper Eocene of the South-Central Pyrenees)

Cited by 29 publications

References 33 publications

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

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

Tectonothermal history of an exhumed thrust‐sheet‐top basin: An example from the south Pyrenean thrust belt

GIS-Based Mapping of Seismic Parameters for the Pyrenees

Contact Info

Product

Resources

About