Structure and nature of the Palaeozoic basement based on magnetic, gravimetric and seismic investigations in the central Upper Rhinegraben

Edel, Jean–Bernard; Maurer, Vincent; Dalmais, Éléonore; Genter, Albert; Richard, A.; Letourneau, O.; Hehn, Régis

doi:10.1186/s40517-018-0099-y

Cited by 13 publications

(9 citation statements)

References 55 publications

(76 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Consequently, it is worth using a multidisciplinary approach to strongly constrain fluid flow models in hydrothermal systems (Oda 1986;Caine et al 1996;Bense and Person, 2006;Micarelli et al 2006;Faulkner et al 2010;Bense et al 2013). As an example, the recent study by Edel et al (2018) predicts, using a combination of magnetic, gravity, seismic and geological data, a temperature of 150 °C at a depth of 2500 m in the northern Vosges area (France). With an improved numerical modeling approach, Guillou-Frottier et al (2013) reproduced and predicted temperatures at geothermal sites of Soultz-sous-Forêts and Rittershoffen.…”

mentioning

confidence: 99%

On the geothermal potential of crustal fault zones: a case study from the Pontgibaud area (French Massif Central, France)

et al. 2019

View full text Add to dashboard Cite

Exploring new geothermal targets requires the understanding of the factors affecting fluid circulation and heat transfer (Rowland and Sibson 2004; Fairley 2009). Understanding the distribution of permeability in the crust remains an essential component for the general comprehension of a geothermal model in the crustal domain, and therefore for the success of a geothermal prospect (Moeck 2014). Nowadays in France, most geothermal exploration licences are located in sedimentary basin areas or within graben structures. The Paris and Aquitaine basins, characterized by simple sedimentary structures, allow geothermal exploitation from low (30 °C) to medium (110 °C) temperature systems.

show abstract

mentioning

confidence: 99%

On the geothermal potential of crustal fault zones: a case study from the Pontgibaud area (French Massif Central, France)

et al. 2019

View full text Add to dashboard Cite

show abstract

“…18). In particular the suture lies either in the NW part of theArmorican Massif (Léon block) or in the Channel (Faure et al, 2005;Ballèvre et al, 2009;Faure et al, 2010), and, to the east, between North Vosges and Ardennes (Faure et al, 2010;Edel et al, 2018). Data from Montagne Noire must be discussed separately.…”

Section: Discussionmentioning

confidence: 99%

How many subductions in the Variscan orogeny? Insights from numerical models

Regorda¹,

Lardeaux

Roda³

et al. 2020

Preprint

View full text Add to dashboard Cite

The Variscan belt is the result of the Pangea accretion, a prominent feature of the European continental lithosphere (von Raumer et al., 2003) . The debate on the number of oceans and the geodynamic evolution of the Variscan belt is still open (Faure et al., 2009; Franke et al., 2017). Two scenarios have been proposed:<ol><li> Monocyclic scenario: assumes a single long-lasting south-dipping subduction of a large oceanic domain. Armorica remained more or less closed to Gondwana during its northward drift, in agreement with lack of biostratigraphic and paleomagnetic data that suggests a narrow oceanic domain (lesser than 1000 km; Matte, 2001; Lardeaux, 2014); </li> <li> Polycyclic scenario: this geodynamic reconstruction envisages two main oceanic basins opened by the successive northward drifting of two Armorican microcontinent and closed by two opposite subductions (Lardeaux, 2014; Franke et al., 2017). The northern oceanic basin is identified as the Saxothuringian ocean, while the southern basin is identified as the Medio-European ocean (Lardeaux, 2014). </li> </ol>Models of single and double subduction have been developed to verify which scenario better fits with Variscan P-T evolutions from the Alps and the French Central Massif (FCM). From the comparison between model predictions and natural Variscan P-T-t estimates results that data from the Alps with high P/T ratios better fit with the double subduction model, supporting that a polycyclic scenario is more suitable for the Variscan belt evolution. Differently, data from the FCM with high P/T ratios that fit with both models have poorly constrained geological ages and, therefore, are not suitable to actually discriminate between mono- and polycyclic scenarios (Regorda et al., 2020). Moreover, the predictions of the models open to the possibility that rocks of the Upper Gneiss Unit of the FCM could derive from tectonic erosion of the upper plate and not only from the ocean-continent transition of the lower plate.ReferencesFaure M., Lardeaux J.-M. and Ledru P.; 2009: A review of the pre-Permian geology of the Variscan French Massif Central. Comptes Rendus Geoscience, 341, 202-213.Franke W., Cocks L.R.M. and Torsvik T.H.; 2017: The Palaeozoic Variscan oceans revisited. Gondwana Research, 48, 257-284.Lardeaux J.-M.; 2014: Deciphering orogeny: a metamorphic perspective. Examples from European Alpine and Variscan belts. Part II: Variscan metamorphism in the French Massif Central &#8211; A review. Bull. Soc. g&#233;ol. France, 185(5), 281-310.Matte P.; 2001: The Variscan collage and orogeny (480-290 Ma) and the tectonic definition of theArmorica microplate: A review. Terra Nova, 13(2), 122-128.Regorda A., Lardeaux J-.M., Roda M., Marotta A.M. and Spalla M.I.; 2020: How many subductions in the Variscan orogeny? Insights from numerical models. Geoscience Frontiers, 10.1016/j.gsf.2019.10.005.von Raumer J. F., Stampfli G.M. and Bussy, F.; 2003: Gondwana-derived microcontinents &#8211; the constituents of the Variscan and Alpine collisional orogens. Tectnophysics, 365, 7-22.

show abstract

“…Stimulation operations were applied in two Fig. 2 a East-West simplified vertical section of the Rhine Graben crossing the Soultz-sous-Forêts GPK-2 and the Rittershoffen GRT-1 wells (from Edel et al 2018); b temperature logs, at equilibrated thermal conditions, for the Soultz-sous-Forêts GPK-2 well (from Genter et al 2010) and for the Rittershoffen GRT-1 well (from Baujard et al 2017) (vertical scale is in MD) sequences: first in April 2013, with a thermal stimulation and, second in June 2013, with both chemical and hydraulic stimulations.…”

Section: Rittershoffen Geothermal Site Developmentmentioning

confidence: 99%

Seismicity induced during the development of the Rittershoffen geothermal field, France

Maurer¹,

Gaucher

Grunberg

et al. 2020

Geotherm Energy

View full text Add to dashboard Cite

show abstract

Structure and nature of the Palaeozoic basement based on magnetic, gravimetric and seismic investigations in the central Upper Rhinegraben

Cited by 13 publications

References 55 publications

On the geothermal potential of crustal fault zones: a case study from the Pontgibaud area (French Massif Central, France)

On the geothermal potential of crustal fault zones: a case study from the Pontgibaud area (French Massif Central, France)

How many subductions in the Variscan orogeny? Insights from numerical models

Seismicity induced during the development of the Rittershoffen geothermal field, France

Contact Info

Product

Resources

About