This study integrates field structural data, petrographic and geochemical (δ18O, δ13C, Δ47, 87Sr/86Sr, elemental composition) analyses U–Pb dating of calcite veins cutting the Bóixols-Sant Corneli anticline (Southern Pyrenees) in order to date investigate spatio-temporal relationships between fluid flow fold evolution. E-W trending grew from Late Cretaceous Paleocene at front Bóixols thrust sheet deforming pre-growth growth sedimentary sequences. reveals late Miocene deformation ages, which...

It is difficult to quantify the timing of deformation processes in brittle fold–thrust belts because minerals suitable for dating and well-preserved growth strata sediments are scarce or absent. Here, we duration thrust sheet emplacement shortening rates SE Pyrenean sequence using U–Pb fracture-filling calcites. The obtained dates reveal a minimum each unit (18.7 Ma Bóixols–Upper Pedraforca, 11.6 Lower Pedraforca 14.3 Cadí sheets) show that piggy-back thrusting was accompanied by...

The Oliana anticline (Southern Pyrenees) has been characterized as an outcrop analogue of a geothermal reservoir using field data (stratigraphy and fracturing) petrological, petrophysical petrothermal analyses. Five lithofacies were established including conglomerates, hybrid arenites, lithic carbonates evaporites. Petrophysical measurements indicate widely dispersed values bulk density, connected porosity, permeability velocity compressional acoustic waves. Connected porosity is the factor...

We combine structural analysis of fractures with 22 U–Pb dates measured in fracture-filling carbonate cements from bed-parallel fibrous calcite veins (beef), conjugated and faults within the Vaca Muerta Formation along Andean fold thrust belt Neuquén Basin. The ages constrain accurately relationships between overpressures caused by hydrocarbon generation compression as mechanisms for natural fracturing vein formation. Two generations fibres have been identified beef. first one, consists dark...

During the last decade, U-Pb geochronology of fracture-filling carbonates has been used to reconstruct tectonic and diagenetic history fold thrust belts, worldwide. These studies unequivocally show potential dating method quantify geological processes in compressional settings such as activity duration fluid migration, folding faulting, sheet emplacement, calculation shortening rates. Here, some examples from SE Pyrenean belt Andean-Neuquén Basin are presented.U–Pb ages...

Abstract Reinterpretation of the Organyà Basin, based on new detailed field observations and subsurface data, emphasizes key contribution Upper Triassic evaporites in tectono‐sedimentary evolution South‐Central Pyrenees. Results are integrated a 65‐km long restored cross‐section through Serres Marginals, Montsec eastern salt‐related depocenters. The reconstructed part Jurassic–Cretaceous northern Iberian salt‐rich rifted margin shows template characterized by inherited Permo‐Triassic...

Abstract Fluid systems in inverted rifted margins are challenging to interpret because fractures formed before compression were often reactivated acting as fluid pathways new ones formed. Deciphering the fracture and flow history such complex settings has key implications for prediction of distribution mineral resources. As an example, we reconstruct evolution a portion Pyrenean rift, Upper Pedraforca thrust sheet, from Mesozoic extension Alpine orogeny. We combine structural analysis...

Structural, petrological and geochemical (δ13C, δ18O, clumped isotopes, 87Sr/86Sr ICP-MS) analyses of fracture-related calcite cements host rocks are used to establish a fluid-flow evolution model for the frontal part Bóixols thrust sheet (Southern Pyrenees). Five fracture events associated with growth thrust-related anticline Coll de Nargó syncline during Alpine orogeny distinguished. These fractures were cemented four generations cements, revealing that such structures allowed migration...

Petrographic and geochemical analyses ( δ 18 O, 13 C, 87 Sr/ 86 Sr, clumped isotopes, elemental composition) coupled with field structural data of synkinematic calcite veins, fault rocks, host rocks are used to reconstruct the episodic evolution an outstanding exposed thrust zone in Southern Pyrenees evaluate behavior as a conduit or barrier fluid migration. The selected displaces steeply dipping southern limb Sant Corneli-Bóixols anticline, juxtaposing Cenomanian-Turonian carbonate unit...

Abstract As one of the predominant diagenetic products in clastic rocks, calcite cements are typical fingerprints cement‐forming fluids and key controls on reservoir quality. The Puig‐reig anticline, south‐eastern Pyrenees (Spain), exposes excellent outcrops conglomerates, sandstones claystones, which were deposited from a proximal to medial fluvial system underwent folding, fracturing cementation. This anticline constitutes an appropriate case study investigate origin distribution during...

The petrophysical and petrothermal characterization of the sedimentary succession Oliana anticline in Southern Pyrenees has been performed on basis mineral density, connected porosity, permeability, P-wave velocity thermal conductivity measurements rock samples distributed along this anticline. This dataset was used to explain: (I) variability properties anticline, (II) distribution units (III) relationships between fold petrology concerning rocks (IV) tectonic diagenetic controls underlying...

Sedimentary rocks of foreland fold-and-thrust belts typically undergo intensive fracturing as folds grow. The resulting fracture networks can present significant variations depending on the distribution sedimentary facies and complex structural characteristics belts. Puig-reig anticline, located in south-eastern Pyrenees, mainly exposes proximal fluvial deposits north limb medial rest anticline. Thus, this anticline constitutes an excellent case study to investigate main controls folded...

The lithographic limestone of La Pedrera de Meià (LPM) in south-Central Pyrenees (NE Spain) is considered one the best preserved lacustrine-coastal successions Early Cretaceous Europe, hosting a taxonomically diverse record Barremian biota. While this Konservat-Lagerstätte has been extensively surveyed for paleontological purposes, little known about paleoenvironmental and depositional conditions prevailing during formation fossil lagerstätte deposit. LPM made up homogeneous, dark gray to...

Fluvial fans represent one of the dominant sedimentary systems at active margins non-marine foreland basins. The Puig-reig anticline north-eastern margin Ebro Foreland Basin (SE Pyrenees, Spain) exposes continuous outcrops Late Eocene-Early Oligocene fluvial deposits, from proximal to medial fan environments. deposits are found in north limb anticline, especially northwest zone. These characterised by conglomerates with minor interbedded sandstones, thick and wide sheet-like geometries...

Abstract. Calcite veins precipitated in the Estamariu thrust during two tectonic events are studied order to (i) decipher temporal and spatial relationships between deformation fluid migration a long-lived (ii) determine influence of basement rocks on chemistry deformation. Structural petrological observations constrain relative timing vein formation, whilst geochemical analyses (δ13C, δ18O, 87Sr∕86Sr, clumped isotope thermometry, elemental composition) applied related calcite cements host...

Sedimentary rocks of foreland fold-and-thrust belts typically undergo intensive fracturing as fold grows. The resulting fracture networks can present significant variations depending on the distribution sedimentary facies and complex structural characteristics belts. Puig-reig anticline, located in south-eastern Pyrenees, mainly exposes proximal fluvial deposits north limb medial rest anticline. Thus, this anticline constitutes an excellent case study to investigate main controls folded...

Karst fills from the onshore Penedès Basin and offshore València Trough display red, pink, orange ochre colours. Their Mössbauer spectra indicate that Fe3+ contained in goethite is dominant species reddish-pink fills, whereas Fe2+ dolomite clays more ones. The lower δ13C values higher 87Sr/86Sr ratios of karst with respect to their host carbonates can reflect input soil-derived CO2 an external radiogenic source into system. This geochemical composition, together non-carbonate fraction...