Thermal history of the Sabero Coalfield (Southern Cantabrian Zone, NW Spain) as revealed by apatite fission track analyses from tonstein horizons: implications for timing of coalification

Botor, Dariusz; Anczkiewicz, Aneta A.

doi:10.1007/s00531-015-1169-z

Cited by 8 publications

(12 citation statements)

References 62 publications

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“…The Western Cantabrian massif reveals rapid cooling during two successive events in the Early and Late Jurassic at 190 ± 20 and 150 ± 10 Ma (Grobe et al, ; Figure b). A slower cooling history characterized by an onset of cooling in the Permian is inferred slightly to the east (Botor & Anczkiewicz, ; Figure b). A more complex time‐temperature history with less well resolved Early Jurassic to Late Cretaceous cooling events is documented in the central Iberian system (Bruijne & Andriessen, , Figure b).…”

Section: Cameros Basinmentioning

confidence: 98%

“…Existing low‐temperature data sets and constraints on time‐temperature evolution in northern Iberia. (a) In situ apatite fission‐track (AFT) age data from Yelland (), Morris et al (), Fitzgerald et al (), Juez et Andriessen (), Jolivet et al (), Maurel et al (), Del Río, Barbero, and Stuart (), Grobe et al (), Fillon and Van Der Beek (), Fillon et al (, ), Herman et al (), Botor and Anczkiewicz (), Bosch et al (), Mouchene (), and Vacherat et al (). In situ zircon fission‐track (ZFT) age data from Maurel et al (2008) and Sinclair et al ().…”

Section: Cameros Basinmentioning

confidence: 99%

“…In situ zircon fission‐track (ZFT) age data from Maurel et al (2008) and Sinclair et al (). (c) Western Iberia thermal history T – t path are modified from (1) Grobe et al (), (2 and 3) Bruijne and Andriesen (), and (4) Botor and Anczkiewicz ().…”

Section: Cameros Basinmentioning

confidence: 99%

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Tectonothermal Evolution of the Cameros Basin: Implications for Tectonics of North Iberia

et al. 2019

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Constraining the way in which continental deformation is accommodated in time and space is essential to reconcile past plate movements with geological observations. Kinematic reconstructions of the Iberia-Europe plate boundary are still debated. Here we focus on an inverted Mesozoic rift basin, the Cameros basin, which is part of the Iberian chain. We use a combination of detrital low-temperature thermochronological techniques to define the time-temperature evolution of the basin from Mesozoic rifting to Cenozoic collision. Zircon fission-track analyses of Oligocene-Miocene sedimentary rocks yield two main age populations at~170 ± 10 and~100 ± 10 Ma, reflecting (i) an Early Jurassic thermal event related to the Atlantic-Alpine Tethys opening and (ii) an Albo-Cenomanian thermal event related to the Bay of Biscay opening. Thermal modeling of combined zircon fission-track, apatite fission-track, and apatite (U-Th-Sm)/He data reveals that collision-related cooling of the Cameros basin started during the Paleocene (~60 Ma). A second cooling/exhumation phase of the basin is recorded from 35 to 25 Ma. Initial cooling occurred after a protracted postrift period characterized by persistence of high geothermal gradients, a feature also recognized in the Pyrenees. Our results show that the Iberian chain shared the same Early to Late Jurassic tectonothermal evolution with the Atlantic-Alpine Tethyan rifted margins. From the Albian onward, the thermal evolution of the Cameros basin was very similar to that of the Pyrenees. This study shows that the preservation in mountain ranges of a succession of rifting events provide important clues for plate reconstructions.

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Section: Cameros Basinmentioning

confidence: 98%

Section: Cameros Basinmentioning

confidence: 99%

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Tectonothermal Evolution of the Cameros Basin: Implications for Tectonics of North Iberia

et al. 2019

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“…(a) Overview map of the Pyrenean‐Cantabrian system, including AFT bedrock ages from Yelland [], Morris et al [], Fitzgerald et al [], Sinclair et al [], Carrière [], Gibson et al [], Jolivet et al [], Maurel et al [], Gunnel et al [], Metcalf et al [], Grobe et al [], Martin‐Gonzalez et al [], and Botor and Anczkiewicz []. Inset shows location of Figure .…”

Section: Geological Backgroundmentioning

confidence: 99%

Alpine exhumation of the central Cantabrian Mountains, Northwest Spain

et al. 2016

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The Cantabrian Mountains extend along the Atlantic coast of northern Spain and are known to have experienced an Alpine phase of deformation, reactivating well-expressed Variscan structures. They form the westward continuation of the Pyrenean range and were similarly uplifted consequently to the convergence between the Iberian and European plates. Nevertheless, due to the scarcity of syntectonic sediments and structural markers in a large outcrop of Variscan basement, little is known about the precise timing and amount of the Alpine exhumation phase in the Cantabrian Mountains. We present a new low-temperature thermochronology data set, composed of nine apatite fission track (AFT) and six zircon (U-Th)/He (ZHe) ages, sampled along structurally well-constrained N-S profiles through the central part of the Cantabrian Mountains and complemented by 3-D thermokinematic modeling. The occurrence of Eocene-Oligocene AFT and ZHe ages in the center of the profiles allows us to frame the period of Alpine exhumation from 39 to 29 Ma, at a rate of 0.24-0.3 km Myr À1 . Moreover, the reset ZHe ages imply significant burial of the samples, by up to 8-10 km in the center of the range. Therefore, the Alpine exhumation phase was significant, and synchronous to the main phase of exhumation in the central Pyrenees, although exhumation rates were an order of magnitude lower. Three-dimensional thermokinematic modeling of the data confirms the timing of uplift of this area, but its resolution is limited by the relatively small number of reset ages over a large area.

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“…A variety of paleothermometers has been applied to deduce the thermal history of the CZ, with the southern thrust units in particular. They include the conodont color alteration index (CAI; Raven and van der Pluijm 1986;Bastida et al 1999;Brime et al 2001;Aller et al 2005), the Kübler Index (KI) of illite crystallinity (Brime 1981;Aller et al 1987;Marschik 1992;Bastida et al 1999;Brime et al 2001), vitrinite reflectance analysis (VR; Colmenero and Prado 1993;Frings et al 2004;Colmenero et al 2008), fluid inclusion (FI) microthermometry (Paniagua et al 1993;Ayllón et al 2003;Gasparrini et al 2006a;Lapponi et al 2013;Muñoz Quijano 2015) and apatite fission-track (AFT) thermochronology (Carrière 2006, Botor andAnczkiewicz 2015). In the southern CZ fracture-related dolomites, occurring mostly in Carboniferous carbonates, formed at temperatures between 130 and 150 °C (based on FI microthermometry; Gasparrini et al 2006a).…”

Section: Introductionmentioning

confidence: 99%

Precursor and ambient rock paleothermometry to assess the thermicity of burial dolomitization in the southern Cantabrian Zone (northern Spain)

Honlet

Gasparrini

Jäger³

et al. 2017

Int J Earth Sci (Geol Rundsch)

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Paleozoic rocks in the Cantabrian Zone, the Variscan foreland fold-and-thrust belt on the Iberian Peninsula, have been affected by a sequence of diagenetic to epizonal thermal events. Late-to Post-Variscan hot fluid circulation caused large-scale burial dolomitization and ore mineralization, mostly in Cambrian and Lower to Middle Carboniferous carbonate sucessions. The goal of this study is to analyze and compare the temperatures experienced by the carbonate precursor rocks, as well as the underand overlying siliciclastic ambient rocks to gain a better understanding of the thermicity of dolomitization. These temperatures are evaluated based on published paleothermal datasets combined with new data obtained from Rock-Eval pyrolysis and vitrinite reflectance analysis of Carboniferous rocks rich in organic matter. The overall results indicate that reworking of detrital sediments in synorogenic ambient siliciclastics results in an anomalously high thermal maturity recorded by bulk rock techniques such as illite crystallinity and Rock-Eval pyrolysis. In situ VR-derived paleotemperatures recorded by ambient siliciclastic rocks appear to be higher compared to CAI-derived temperatures for carbonate precursor rocks. This variation in thermal maturity is likely related to the analytical techniques used to obtain CAI and VR data and the empirical equations applied to calculate corresponding paleotemperatures. Conodont fragments were not as sensitive compared to vitrinite, and the color alteration process could have suffered from hydrothermal alteration. A secondary cause might be a different response to mechanical deformation between siliciclastic and carbonate units during the Variscan and post-Variscan geodynamic evolution of the study area. Rigid precursor carbonate units experienced fluid circulation mainly along distinct and spaced fractures zones, creating fracture-related dolomite geobodies and ore mineralization. Soft ambient Powered by Editorial Manager® and ProduXion Manager® from Aries Systems Corporation Precursor and ambient rock paleothermometry to assess the thermicity of burial dolomitization in the southern Cantabrian Zone (northern Spain).

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Thermal history of the Sabero Coalfield (Southern Cantabrian Zone, NW Spain) as revealed by apatite fission track analyses from tonstein horizons: implications for timing of coalification

Cited by 8 publications

References 62 publications

Tectonothermal Evolution of the Cameros Basin: Implications for Tectonics of North Iberia

Tectonothermal Evolution of the Cameros Basin: Implications for Tectonics of North Iberia

Alpine exhumation of the central Cantabrian Mountains, Northwest Spain

Precursor and ambient rock paleothermometry to assess the thermicity of burial dolomitization in the southern Cantabrian Zone (northern Spain)

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