Continental rifts as a setting for regional metamorphism

Wickham, Stephen M.; Oxburgh, E. R.

doi:10.1038/318330a0

Cited by 243 publications

(72 citation statements)

References 13 publications

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“…Furthermore, the current data provide independent evidence for penetration of basinal fluids with ultimately surficial origins to depths of $10 km during metamorphism (e.g. Wickham and Oxburgh, 1985;Wickham and Taylor, 1987;Jenkin et al, 1994;Upton et al, 1995;Clark et al, 2006). In general, the noble gases provide complementary information to stable isotopes demonstrating they are a useful addition to the array of tools available for investigating metamorphic fluid processes.…”

Section: Introductionmentioning

confidence: 90%

The noble gas systematics of late-orogenic H2O–CO2 fluids, Mt Isa, Australia

Kendrick

Honda

Oliver

et al. 2011

Geochimica et Cosmochimica Acta

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Section: Introductionmentioning

confidence: 90%

The noble gas systematics of late-orogenic H2O–CO2 fluids, Mt Isa, Australia

Kendrick

Honda

Oliver

et al. 2011

Geochimica et Cosmochimica Acta

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“…The Hercynian orogeny in the Pyrenees was explained by a continuous intracontinental extension (Wickam and Oxburg 1985) or by a shortening interpreted as active since Carboniferous times (Soula et al 1986;Matte and Mattauer 1987;Van den Eeckout and Zwart 1988;Vissers 1992). On the basis of a basin analysis previously carried out in the Carboniferous (DelvolvØ et al 1998), we have shown that this shortening resulted from a thrust sequence which began in the Visean (Late Visean V3c in the Central Pyrenees, DelvolvØ et al 1993) and succeeded a foreland flexure stage.…”

Section: Implications For the Hercynian Orogenymentioning

confidence: 99%

Identification of an underfilled foreland basin system in the Upper Devonian of the Central Pyrenees: implications for the Hercynian orogeny

Souquet

Delvolvé

Brusset

2003

International Journal of Earth Sciences

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A foreland basin succession has been identified in the Frasnian of the Central Pyrenees. This succession comprises a carbonate-dominated transgressive system which recorded the cratonward migration of the foreland basin subsidence, and siliciclastic depocenters which recorded the progression of the thrust-fold deformation. The foreland basin system has always been maintained in deep-marine environments, i.e., at an underfilled depositional state. It was associated with a thrust wedge which descended toward a deep-marine hinterland, i.e., with a type of orogenic wedge usually related to subduction zones. The Frasnian foreland basin system differs from the one known in the Carboniferous which evolved to overfilled depositional state and was associated with a thrust wedge rising toward a mountainous hinterland. Consequently, the Hercynian orogeny in the Pyrenees seems to result first, from a Frasnian thrusting controlled by a subduction zone located north of the Pyrenees, and second, from a Carboniferous thrusting controlled by the surrection of a frontal thrust belt in the Pyrenees. The association of underfilled foreland basin systems and hinterland-dipping thrust wedges, as exemplified in the Frasnian of the Pyrenees, can be interpreted as illustrative of the initial stages of thrust-wedge growth in deepmarine settings.

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“…This has been suggested by WICKHAM & OXBURGH (1985) (BRooKs et al 1984) for which these criteria apply (Tab. 3).…”

Section: Discussionmentioning

confidence: 97%

Heat flow during the carboniferous and mesozoic of the Northwest German Basin

Ritter

1986

Geol Rundsch

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ZusammenfassungDie Temperaturgeschichte des Nordwestdeutschen Bekkens wurde mittels eines eindimensionalen Computermodells rekonstruiert, das auch kompaktionsbezogenen Knderungen der physikalischen Gesteinseigenschaften, der Tiefe und der Temperatur gerecht wird. Die Reife wurde simuliert, indem Vitrinitreflexion und Zeit-Temperatur Verlauf empirisch miteinander korelliert wurden. Die W~irmeflut3werte fiir das Karbon und das Mesozoikum wurden dadurch ermittelt, dal3 gemessene und berechnete Vitrinitreflexion in optimale Ubereinstimmung gebracht wurden. Fiir das Mesozoikum kann eine Ubereinstimmung bei W~irmeflut3werten zwischen 37 und 50 mW/m 2 (0.9 und 1,2 hfu), fiir das Karbon f/Jr Werte zwischen 70 und 96 mW/m 2 (1.7 und 2.3 hfu) erzielt werden, was je nach Lithologie und Kompaktionszustand einem Geothermalgradienten zwischen 50 und 80 ~ entspricht. Nur ffir die karbonischen Daten ist eine systematische rSumliche Knderung der Werte erkennbar. Der W~irmeflufl im Mesozoikum entspricht dem in heutigen stabilen Plattformgebieten. W~/rmeflut~ und geotektonische Position im Karbon sind vergleichbar mit solchen heutigen ~,back-arc<, Gebieten, die von kontinentaler Kruste unterlagert sin& AbstractThe temperature history of the Northwest German Basin has been reconstructed using a one-dimensional computer model that accounts for compaction-related changes of physical rock properties, depth, temperature and maturity of organic matter. Maturity has been modelled by empirically relating vitrinite reflectance to time-temperature history. Heat flow values for the Mesozoic and Carboniferous have been obtained by matching measured and computed vitrinite reflectance. For Mesozoic samples agreement between measured and computed maturity can be achieved with a heat flow between 37 and 50 mW/m 2 (0.9 *) Authors' address: Dr. U. RITTER Rgsum6L'histoire thermique du bassin allemand nor&occidental a &6 simul& sur ordinateur au moyen d'un mod61e unidimensionnei; ce module tient compte des changements introduits par la compaction dans Ies propri&& physiques de roches, de la profondeur, de la temp&ature et de I'&olution de ia mati6re organique. Pour mod61iser cette &olution, on a &abli une corr61ation entre la rgflectance de la vitrinite et l'histoire thermique. Les valeurs du flux de chaieur pour le M6sozo~que et le Carbonif~re ont &4 obtenues par ajustement entre la r~flectance de la vitrinite observ& et calcul&. Pour les &hantillons m&ozolques, les valeurs calcul&s et mesur&s s'accordent Ie mieux pour un flux compris entre 37 et 50 mW/m2 (0.9 et 1,2 HFU). I1 n'y a pas de variation r6gionale syst6mafique. Pour le Carbonif~re, le meillenr accord donne un flux slut6 entre 70 et 96 mW/m2 (I,7 et 2,3 HFU), ce qui correspond ~ des gradients g6othermiques de 50 et 80 ~ selon la lithologie et le degrg de compaction. I1 existe dans le Carbonif6re, des variations r~gionales, qui parall4Iisent les lignes structurales de l'orog~ne varisque. Le flux de chaIeur m&ozolque est compatible avec une situation de plate-forme stable. Le flux de chateur...

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Continental rifts as a setting for regional metamorphism

Cited by 243 publications

References 13 publications

The noble gas systematics of late-orogenic H2O–CO2 fluids, Mt Isa, Australia

The noble gas systematics of late-orogenic H2O–CO2 fluids, Mt Isa, Australia

Identification of an underfilled foreland basin system in the Upper Devonian of the Central Pyrenees: implications for the Hercynian orogeny

Heat flow during the carboniferous and mesozoic of the Northwest German Basin

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