Journal articles: 'Massif maures'

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Segura, Jean-Antoine. "Var. Massif des Maures." Archéologie médiévale, no. 45 (December 1, 2015): 264. http://dx.doi.org/10.4000/archeomed.7863.

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Oliot, Emilien, Jérémie Melleton, Julie Schneider, Michel Corsini, Véronique Gardien, and Yann Rolland. "Variscan crustal thickening in the Maures-Tanneron massif (South Variscan belt, France): new in situ monazite U-Th-Pb chemical dating of high-grade rocks." Bulletin de la Société Géologique de France 186, no. 2-3 (2015): 145–69. http://dx.doi.org/10.2113/gssgfbull.186.2-3.145.

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AbstractAge constraints on the protoliths, deformation, metamorphism and melting events are key parameters when correlating different continental lithospheric remnants among each other and disentangling their evolution within large-scale orogens. In situ U-Th-Pb chemical dating on monazites using Electron Probe Micro-Analyser (EPMA) has been performed on eight samples throughout the Variscan Maures-Tanneron massif (SE France) in order to date the medium to high-tectonothermal events related to the Variscan orogeny.Results indicate a polyphased crustal evolution : (i) U-Th-Pb ages obtained in polygenetic monazite grain cores gave inherited Upper Ordovician (456 ± 11 Ma) age, highlighting the large scale occurrence of the Ordovician magmatic activity in the North Gondwanian margin. An Early Devonian (404 ± 10 Ma) age may date a protolith emplacement related to calc-alkaline supra-subduction magmatism or could be associated to an early medium-grade metamorphism, prior to collisional stage. (ii) The crustal thickening stage has been further recorded in prograde metamorphic monazites formed during the underthrusting and subsequent nappe stacking events, under amphibolite facies conditions. This stage is dated between 382 ± 11 (Middle Devonian) and 331 ± 5 Ma (Late Visean). (iii) An orogenic partial melting event took place during Middle Carboniferous and is accompanied by the crystallization of crustal peraluminous magmas (Plan-de-la-Tour granite, 329 ± 3 Ma).This contribution demonstrates the capacity of monazite to record the prograde path of rocks during increasing metamorphic conditions related to stages of crustal thickening, and the robustness of the U-Th-Pb chronometer in monazite despite the overprinting of high-grade thermal events, including partial melting. The age ranges of the different orogenic stages reported in this study are in good agreement with those reported in adjacent Variscan Corsica and Sardinia; while correlations with other nearest Variscan massifs like the Argentera massif in the southwestern Alps or the French Massif Central remain more hypothetic. The Internal Zone of the Maures-Tanneron massif, and more widely the Internal Zone of the Maures-Tanneron-Corsica-Sardinia segment, is part of the southern orogenic root system of the Variscan belt.

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Innocent, Christophe, Annie Michard, Catherine Guerrot, and Bruno Hamelin. "U-Pb zircon age of 548 Ma for the leptynites (high-grade felsic rocks) of the central part of the Maures Massif. Geodynamic significance of the so-called leptyno-amphibolitic complexes of the Variscan belt of western Europe." Bulletin de la Société Géologique de France 174, no. 6 (November 1, 2003): 585–94. http://dx.doi.org/10.2113/174.6.585.

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Abstract U-Pb zircon and Rb-Sr geochronological, and Sm-Nd isotopic studies have been carried out on the so-called leptyno-amphibolitic complex of the central part of the Maures Massif. The emplacement of the protolith of the felsic end-member (« leptynites ») has been dated at 548 Ma, an age much older than those (lower Ordovician) previously obtained on other leptyno-amphibolitic complexes. Rb-Sr data obtained on whole rocks and on mineral separates give an age of 348 Ma for the amphibolite-facies metamorphism. Nd isotopes indicate that the amphibolites display clear-cut mantle-derived signatures, whereas a significant crustal contribution is recorded in the three analyzed felsic facies. One of these acidic terms can be interpreted in terms of a simple mixing between two components, respectively similar to the amphibolites and to the two other felsic samples. These latter involve another mantle source, distinct from that of the amphibolites, and comparable to that of continental alkali basalts. These data indicate that the central part of the Maures Massif and the southern Massif Central were possibly part of the same pre-Variscan structural unit. The lack of evidence for a clear genetic relationship between the respective protoliths of the two end-members of the leptyno-amphibolitic complex raises once again the problem of the geodynamic significance of these formations.

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Martin, Claude, Philippe Allée, Eric Béguin, Catherine Kuzucuoglu, and Michèle Levant. "Mesure de l'érosion mécanique des sols après un incendie de forêt dans le massif des Maures/Soil erosion measurement after a forest fire in the Maures Massif." Géomorphologie : relief, processus, environnement 3, no. 2 (1997): 133–42. http://dx.doi.org/10.3406/morfo.1997.910.

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5

Devaux, Bernard. "Réintroduction de tortues d'Hermann (Testudo hermanni hermanni) dans le Massif des Maures." Revue d'Écologie. Supplément 45, no. 5 (1990): 291–97. http://dx.doi.org/10.3406/revec.1990.6356.

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Martin, Claude. "Erosion et altération chimiques actuelles sur roches métamorphiques dans le massif des Maures (Var, France). / Present chemical erosion and metamorphic rock weathering in the massif des Maures (Var, France)." Sciences Géologiques. Bulletin 42, no. 2 (1989): 91–106. http://dx.doi.org/10.3406/sgeol.1989.1815.

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7

Martin, Claude, and Yves Chevalier. "Comportement hydrochimique après incendie de forêt du bassin versant du Rimbaud (massif des Maures, France)." Zeitschrift für Geomorphologie 43, no. 3 (October 6, 1999): 359–81. http://dx.doi.org/10.1127/zfg/43/1999/359.

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8

BRIAND, BERNARD, JEAN-LUC BOUCHARDON, PAUL CAPIEZ, and MICHEL PIBOULE. "Felsic (A-type)–basic (plume-induced) Early Palaeozoic bimodal magmatism in the Maures Massif (southeastern France)." Geological Magazine 139, no. 3 (May 2002): 291–311. http://dx.doi.org/10.1017/s0016756802006477.

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The Maures Massif forms an important piece of the southernmost part of the Variscan belt of western Europe. This massif exhibits high-grade bimodal felsic–basic volcanic complexes, a distinctive lithological feature documented elsewhere in similar domains of the European Variscides and referred to the Cambro-Ordovician extensional episode. Two major alkalic and tholeiitic compositional groups and subordinate transitional metabasites have been identified, occurring at several distinct horizons or in bimodal complexes. This chemical diversity is interpreted in terms of variable degrees of partial melting of progressively depleted mantle source(s), which experienced melting at different depths, from garnet to spinel stability domains, during a progressive mantle upwelling associated with intracontinental rifting. This setting is reinforced by the presence of metabasites with compositions similar to continental flood basalts, showing slightly humped REE patterns, and interpreted as resulting from the melting of a partially depleted source at a relatively low degree of melting, in the garnet–spinel transition zone. The metafelsites from the tholeiitic bimodal complex exhibit the distinctive major and trace element characteristics of A-type rhyolites. Their elemental variations are consistent with fractional crystallization of major and accessory phases, but some discontinuous REE profiles result from a hydrothermal fractionation mechanism. The modelling of common anhydrous fractionating assemblages suggests that these A-type compositions may be derived from the associated tholeiites by extensive degrees of fractionation (90 %) with some continental crust involvement, or by anhydrous partial melting (∼30 %) of an underplated mafic parent of tholeiitic composition. The bimodal character of the Late Cambrian Maures magmatism, together with the chemistry of the various metabasites and metafelsites, suggests plume-induced intracontinental magmatic activity, resulting in lithospheric thinning prior to the onset of rifting and break-up of the Palaeozoic continental lithosphere, at this northern margin of Gondwana.

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Mantovani, Federico, and Franco Marco Elter. "The East Variscan Shear Zone (EVSZ) and Its Regional Mylonitic Complex: A New Geodynamic Interpretation of the Variscan Axial Zone in Sardinia (Italy)?" Geosciences 14, no. 5 (April 24, 2024): 113. http://dx.doi.org/10.3390/geosciences14050113.

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Sardinia (Italy) represents one of the most comprehensive cross-sections of the Variscan orogen. The metamorphic and structural complexity characterizing its axial zone still presents many unresolved issues in the current state of knowledge. The data presented from the structural study of the entire axial zone of this area have allowed the authors to propose a subdivision into two new structural complexes. In particular, a younger complex is identified as the New Gneiss Complex, containing remnants of an older and higher-grade metamorphic complex defined as the Old Gneiss Complex. The structural and geometric relationships between the two complexes suggest the redefinition of the axial zone of Sardinia as part of the intracontinental East Variscan Shear Zone/medium-temperature Regional Mylonitic Complex. Comparable relationships are also highlighted in many other areas of the Variscan chain (e.g., Morocco, Corsica, Maures Massif, and Argentera Massif). Extending this new structural interpretation to other axial zones of the South European Variscan orogen could provide new hints for reconstructing the collision boundaries between Gondwana and Laurussia in the late Carboniferous to the early Permian periods.

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10

Martin, C. "Les conséquences hydrochimiques de l'incendie de forêt d'août 1990 dans le massif des Maures." Annales de Géographie 104, no. 581 (1995): 182–87. http://dx.doi.org/10.3406/geo.1995.13878.

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Brin, Antoine, and Hervé Brustel. "Réponse des Coléoptères saproxyliques à l’hétérogénéité des subéraies dans le massif des Maures (France)." Revue d'Écologie (La Terre et La Vie) 61, no. 4 (2006): 327–42. http://dx.doi.org/10.3406/revec.2006.1328.

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12

Simonetti, Matteo, Rodolfo Carosi, Chiara Montomoli, Michel Corsini, Alessandro Petroccia, John M. Cottle, and Salvatore Iaccarino. "Timing and kinematics of flow in a transpressive dextral shear zone, Maures Massif (Southern France)." International Journal of Earth Sciences 109, no. 7 (July 7, 2020): 2261–85. http://dx.doi.org/10.1007/s00531-020-01898-6.

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13

Bellot, Jean-Philippe, Christine Laverne, and Georges Bronner. "An early Palaeozoic supra-subduction lithosphere in the Variscides: new evidence from the Maures massif." International Journal of Earth Sciences 99, no. 3 (January 27, 2009): 473–504. http://dx.doi.org/10.1007/s00531-009-0416-6.

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14

Martin, Claude, Philippe Bernard-Allée, Eric Béguin, Michèle Levant, and Jacques Quillard. "Conséquences de l'incendie de forêt de l'été 1990 sur l'érosion mécanique des sols dans le Massif des Maures (Repercussions on physical soil erosion in the forests of the "Massif des Maures" following the fire of Summer 1990)." Bulletin de l'Association de géographes français 70, no. 5 (1993): 438–47. http://dx.doi.org/10.3406/bagf.1993.1711.

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15

Daligaux, Jacques. "Urbanisation et évolution de la propriété foncière en milieu rural. Le cas du massif des Maures (Var)." Méditerranée 83, no. 1 (1996): 27–36. http://dx.doi.org/10.3406/medit.1996.1870.

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16

Laverne, Christine, Georges Bronner, and Jean-Philippe Bellot. "Les ultrabasites du massif hercynien des Maures (Var), témoins d'une zone avant-arc? Évidences pétrographiques et minéralogiques." Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science 325, no. 10 (November 1997): 765–71. http://dx.doi.org/10.1016/s1251-8050(97)82754-1.

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17

Gerbault, Muriel, Julie Schneider, A. Reverso-Peila, and Michel Corsini. "Crustal exhumation during ongoing compression in the Variscan Maures-Tanneron Massif, France-Geological and thermo-mechanical aspects." Tectonophysics 746 (October 2018): 439–58. http://dx.doi.org/10.1016/j.tecto.2016.12.019.

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Huon-Daubremont, Colette, and Claude Grenot. "Rythme d’activité de la Tortue d’Hermann (Testudo hermanni hermanni) en semi-liberté dans le massif des Maures (Var)." Revue d'Écologie (La Terre et La Vie) 52, no. 4 (1997): 331–44. http://dx.doi.org/10.3406/revec.1997.2236.

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19

Rolland, Yann, Michel Corsini, and Antoine Demoux. "Metamorphic and structural evolution of the Maures-Tanneron massif (SE Variscan chain): evidence of doming along a transpressional margin." Bulletin de la Société Géologique de France 180, no. 3 (May 1, 2009): 217–30. http://dx.doi.org/10.2113/gssgfbull.180.3.217.

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Abstract The Variscan metamorphic and structural evolution of the Maures-Tanneron massif is divided in two main post-collisional phases: (1) a MP-MT regional gradient is developed during nappe-piling process between 350 and 320 Ma, followed by (2) LP-HT regional gradient coeval with doming between 320 and 300 Ma. During this late phase, the tectonic context was dominated by E-W shortening, which produced crustal-scale upright folds and major strike-slip displacement along trans-crustal faults. Symmetric extensional fabrics are observed on the limbs of crustal-scale anticlines, and are ascribed to local accommodation of lower crust exhumation. Heat and magma transfer are allowed by these large vertical strike-slip faults, and are thought to be the cause of the late metamorphic evolution. Therefore, structures and metamorphism argue for a transpressional context at the SE branch of the Variscan chain. Comparisons with current collisional settings such as syntaxial domains of the Himalayan belt show that the timing and PT conditions of metamorphic events are similar. These observations lead us to propose that the situation of the Variscan chain during the period 320-300 Ma was still a syn-convergent setting similar to the current situation of the Himalayan-Tibet system, and that extensional movements are not the cause of, but the result of exhumation of the lower crust in this ongoing shortening context along a transpressional wrench boundary.

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Merabet, N., and L. Daly. "Détermination d'un poˇle paléomagnétique et mise enévidence d'aimantationsàpolariténormale sur les formations du Permien supérieur du Massif des Maures (France)." Earth and Planetary Science Letters 80, no. 1-2 (October 1986): 156–66. http://dx.doi.org/10.1016/0012-821x(86)90029-4.

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Thiery, Y., F. Lacquement, and N. Marçot. "Landslides triggered in weathered crystalline rocks of moderate latitudes: A case study in Mediterranean environment (The Maures Massif, France)." Engineering Geology 248 (January 2019): 164–84. http://dx.doi.org/10.1016/j.enggeo.2018.12.002.

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Stubbs, David, and Ian R. Swingland. "The ecology of a Mediterranean tortoise (Testudo hermanni): a declining population." Canadian Journal of Zoology 63, no. 1 (January 1, 1985): 169–80. http://dx.doi.org/10.1139/z85-026.

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In France, wild tortoises occur at low densities (< 3/ha) in the mixed forest and maquis of the Massif des Maures. In an evergreen oak forest with scattered, traditional cultivations, distinct subpopulations still exist at relatively high density (> 10/ha). The population structure is heavily skewed in favour of old adults and recruitment is low. The population is declining due to habitat loss, both from fire and through the decline in traditional horticultural practices, leading to a reduction in nest site availability. The increase in nest density in the few suitable sites remaining leaves the eggs highly vulnerable to predation and losses of over 90% cannot be sustained. The active season is from March to November, but there is evidence of some activity during the hibernation period. Adult males maintain small, fixed home ranges, while females undertake distinct migrations to and from nesting sites in the spring and can switch to new home ranges. Juveniles are sedentary up to the age of 4 or 5 years, after which they may wander considerable distances in no particular direction, until the onset of sexual maturity. Sex ratio does not differ significantly from parity within any age cohort.

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Schneider, Julie, Michel Corsini, Alexandre Reverso-Peila, and Jean-Marc Lardeaux. "Thermal and mechanical evolution of an orogenic wedge during Variscan collision: an example in the Maures–Tanneron Massif (SE France)." Geological Society, London, Special Publications 405, no. 1 (2014): 313–31. http://dx.doi.org/10.1144/sp405.4.

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FOURCADE, BENOÎT, ANNE COUDRAIN-RIBSTEIN, and CLAUDE MARTIN. "What can be deduced from chemical measurement in an open-field raingauge? An example in the Maures Massif, southeastern France." Hydrological Sciences Journal 47, no. 3 (June 2002): 469–78. http://dx.doi.org/10.1080/02626660209492947.

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Jourdan, Sébastien, Matthias Bernet, Elizabeth Hardwick, Jean-Louis Paquette, Pierre Tricart, François Senebier, and Francis Coeur. "Geo-thermochronology of the Saint Antonin basin, south-eastern France." BSGF - Earth Sciences Bulletin 189, no. 3 (2018): 12. http://dx.doi.org/10.1051/bsgf/2018013.

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The clastic sedimentary formations of the Saint Antonin basin in the French Maritime Alps contain the record of the Early Oligocene erosional history of the Maures-Esterel massif, Sardinia and Corsica. Detrital apatite fission-track dating and zircon fission-track/U-Pb double dating of samples collected from the Saint Antonin basin confirm sediment provenance and allow obtaining first-order estimates of drainage basin maximum and long-term average exhumation rates. Whereas average exhumation rates were on the order of 0.1–0.2 km/Myr during the Early Oligocene, small parts of the Saint Antonin basin source areas may have experienced maximum exhumation rates on the order of 0.4–0.7 km/Myr. Although zircons and apatites with Early Oligocene fission-track cooling ages make up between 11–15% of the dated grains, a possible volcanic contribution is negligible, as only one single volcanic zircon grain was identified by fission-track/U-Pb double dating. Regional geodynamic processes with convergence in the Western Alps to the east and the end of the Pyreneo-Provençal compression phase by the early Oligocene controlled the differences in basin fill history and sediment provenance between the Saint Antonin basin and the largely contemporaneous Barrême basin in south-eastern France.

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Simonetti, Matteo. "A field guide to the excursion in the Maures Massif (southern France): a complete transect of the Southern European Variscan belt." Geological Field Trips 14, no. 2.1 (July 2022): 1–69. http://dx.doi.org/10.3301/gft.2022.04.

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27

Martin, Claude. "Measurements of chemical erosion in watersheds of crystalline rocks: comparison of the results by different methods of investigation in the massif des Maures (Var - France)." Zeitschrift für Geomorphologie 31, no. 1 (April 7, 1987): 73–84. http://dx.doi.org/10.1127/zfg/31/1987/73.

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Folton, Nathalie, Eric Martin, Patrick Arnaud, Pierre L'Hermite, and Mathieu Tolsa. "A 50-year analysis of hydrological trends and processes in a Mediterranean catchment." Hydrology and Earth System Sciences 23, no. 6 (June 25, 2019): 2699–714. http://dx.doi.org/10.5194/hess-23-2699-2019.

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Abstract. The Réal Collobrier hydrological observatory in south-eastern France, managed by Irstea since 1966, constitutes a benchmark site for regional hydro-climatology. Because of the dense network of stream gauges and rain gauges available, this site provides a unique opportunity to evaluate long-term hydro-meteorological Mediterranean trends. The main catchment (70 km2) and its sub-catchments are located in the Massif des Maures of south-eastern France, close to the Mediterranean coast. The vegetation is composed of forest mainly calcified on crystalline soils (maquis of heath, cork-oak, maritime pine and chestnut). Direct human influence has been negligible over the past 50 years. The land use and land cover has remained almost unchanged, with the notable exception of a wildfire in 1990 that impacted a small sub-catchment. Therefore changes in the hydrological response of the catchments are caused by changes in climate and/or physical conditions. This study investigates changes in observational data using up to 50-year daily series of precipitation and streamflow. The analysis used several climate indices describing distinct modes of variability, at inter-annual and seasonal timescales. Trends were assessed by the Mann–Kendall method. The analysis also used hydrological indices describing drought events based on daily data for a description of low flows, in particular in terms of timing and severity. The analysis shows that there is a marked tendency towards a decrease in the water resources of the Réal Collobrier catchment in response to climate trends, with a consistent increase in drought severity and duration. But the changes are variable among the sub-catchments.

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Elter, Franco Marco, Barbara Corsi, Paolo Cricca, and Giovanni Muzio. "The south-western Alpine foreland: correlation between two sectors of the Variscan chain belonging to “stable Europe”: Sardinia(-)Corsica and the Maures Massif (south-eastern France)." Geodinamica Acta 17, no. 1 (February 2004): 31–40. http://dx.doi.org/10.3166/ga.17.31-40.

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Orgeas, J., and G. Bonin. "Variabilité des nutriments foliaires de Quercus suber L dans différentes situations écologiques dans le massif des Maures (Var, France), et relations avec la production de liège." Annales des Sciences Forestières 53, no. 2-3 (1996): 615–24. http://dx.doi.org/10.1051/forest:19960240.

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Bellot, Jean-Philippe. "Mise en évidence d'un décrochement ductile senestre dans l'ı̂le de Porquerolles (Var, France) et ses implications sur la tectonique du massif des Maures au Paléozoı̈que supérieur." Comptes Rendus Geoscience 336, no. 1 (January 2004): 67–74. http://dx.doi.org/10.1016/j.crte.2003.09.017.

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Folton, Nathalie, Éric Martin, Patrick Arnaud, and Mathieu Tolsa. "Cinquante ans de processus hydrologiques observés dans des petits bassins versants méditerranéens : vers une raréfaction de la ressource en eau ?" La Houille Blanche, no. 5 (October 2020): 17–27. http://dx.doi.org/10.1051/lhb/2020048.

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L'observatoire hydrologique du Réal Collobrier situé dans le sud-est de la France à proximité du littoral méditerranéen (massif des Maures) et géré par Irstea depuis 1966, constitue un site de référence en hydro-climatologie régionale. En raison du réseau dense de mesures des pluies et des débits, ce site offre une occasion unique d'évaluer les tendances hydrométéorologiques méditerranéennes à long terme. La végétation est composée de forêts principalement calcifuges sur des sols cristallins (maquis de bruyère, chêne-liège, pin maritime et châtaignier). L'influence humaine directe a été négligeable au cours des 50 dernières années. L'occupation du sol est demeurée presque inchangée, à l'exception notable d'un incendie de forêt en 1990 qui a touché un petit sous-bassin hydrographique. Par conséquent, les changements dans la réponse hydrologique des bassins versants sont causés par des changements dans les conditions climatiques et/ou physiques. Cette étude examine les changements sur la période d'observation de 50 ans, à l'aide de séries de précipitations et de débits. L'analyse utilise plusieurs indices climatiques décrivant des modes de variabilité distincts, à des échelles de temps interannuelles et saisonnières. Des indices hydrologiques décrivant les épisodes de sécheresse, en particulier en termes de durée et de sévérité sont également utilisés. Les tendances sont évaluées à l'aide du test statistique de Mann-Kendall. L'analyse montre qu'il existe une tendance marquée à la diminution des ressources en eau du bassin versant en réponse aux tendances climatiques, avec une augmentation de la sévérité et de la durée de la sécheresse. Mais les changements sont variables d'un sous-bassin à l'autre en fonction de leur propre fonctionnement hydrologique.

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Marc, Vincent. "Etude de la relation pluie-débit sur bassin versant en climat méditerranéen par le traçage chimique et isotopique naturel de l'eau (Réal Collobrier, massif des Maures, Var)." La Houille Blanche, no. 8 (December 1995): 22–27. http://dx.doi.org/10.1051/lhb/1995076.

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Duchesne, Jean-Clair, Jean-Paul Liégeois, Olivier Bolle, Jacqueline Vander Auwera, Olivier Bruguier, Dmitry I. Matukov, and Sergey A. Sergeev. "The fast evolution of a crustal hot zone at the end of a transpressional regime: The Saint-Tropez peninsula granites and related dykes (Maures Massif, SE France)." Lithos 162-163 (March 2013): 195–220. http://dx.doi.org/10.1016/j.lithos.2012.12.019.

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MARTIN, C., and J. LAVABRE. "Estimation de la part du ruissellement sur les versants dans les crues du ruisseau du Rimbaud (massif des Maures, Var, France) après l'incendie de forêt d'août 1990." Hydrological Sciences Journal 42, no. 6 (December 1997): 893–907. http://dx.doi.org/10.1080/02626669709492086.

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Morillon, Anne-Claire, Gilbert Féraud, Marc Sosson, Gilles Ruffet, Gilbert Crevola, and Gilles Lerouge. "Diachronous cooling on both sides of a major strike slip fault in the Variscan Maures Massif (south-east France), as deduced from a detailed 40Ar/39Ar study." Tectonophysics 321, no. 1 (May 2000): 103–26. http://dx.doi.org/10.1016/s0040-1951(00)00076-7.

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Bellot, J. P., C. Triboulet, C. Laverne, and G. Bronner. "Evidence for two burial/exhumation stages during the evolution of the Variscan belt, as exemplified by P–T–t–d paths of metabasites in distinct allochthonous units of the Maures massif (SE France)." International Journal of Earth Sciences 92, no. 1 (February 1, 2003): 7–26. http://dx.doi.org/10.1007/s00531-002-0302-y.

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HÃ©brard, J. "Recherche des facteurs du maintien de la richesse de la bryoflore terricole en habitats isolÃ©s. III â Ãtude comparÃ©e de la richesse en bryophytes d'Ã®lots Ã chÃªnes sclÃ©rophylles, de leurs interfaces avec le vignoble et du vignoble sur la bordure occidentale du massif des Maures (Var, France)." Cryptogamie Bryologie 22, no. 3 (2001): 199–216. http://dx.doi.org/10.1016/s1290-0796(01)90005-7.

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Bérato, Jacques, Marc Borréani, Chérine Gébara, and Jean-Marie Michel. "L'Age du fer dans la dépression permienne, et dans les massifs des Maures et de l'Estérel (Var)." Documents d'Archéologie Méridionale 18, no. 1 (1995): 45–77. http://dx.doi.org/10.3406/dam.1995.1156.

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Onézime, Jérôme, Michel Faure, and Gilbert Crévola. "Étude pétro-structurale du complexe granitique Rouet — Plan-de-la-Tour (massifs des Maures et du Tanneron occidental, Var)." Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science 328, no. 11 (June 1999): 773–79. http://dx.doi.org/10.1016/s1251-8050(99)80170-0.

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Bouton, Pascal, and Jean Pierre Camuzard. "Le Givétien de la Villede-d’Ardin (sud du massif armoricain, France) : une série discordante sur un socle cadomien ?" Annales de la Société Géologique du Nord, no. 19 (December 1, 2012): 25–34. http://dx.doi.org/10.54563/asgn.1355.

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Les grès et calcaires givétiens d’Ardin (Deux-Sèvres, France) affleurent à l’extrémité sud-est du Sillon houiller vendéen. Cette faille namuro-stéphanienne est un des grands décrochements crustaux sud-armoricains installés à l’emplacement de la zone de suture varisque entre le Gondwana et la microplaque Armorica. Épaisse d’environ 400 m, la série givétienne s’est déposée sur un domaine stable et peu profond. Elle débute par des conglomérats quartzeux monogéniques et se termine par l’installation d’un récif à tétracoralliaires, stromatopores et brachiopodes (Stringocephalus). Ses trilobites (Dechenella) constituent l’unique exemple de faune d’affinité morave connu dans le Massif armoricain. Cette affinité plutôt nord-gonwanienne s’exprime également avec les brachiopodes du Cambrien supérieur (Billingsella) de l’Unité voisine de Puyhardy. Le Givétien repose sur une série très déformée, l’Unité de RocCervelle, précédemment attribuée au Cambrien ; il nous paraît aujourd’hui plus logique d’en faire un équivalent du Protérozoïque des Mauges dont la structuration est cadomienne. La seule déformation enregistrée par le Givétien est sa verticalisation lors du serrage qui affecte le bassin du Carbonifère supérieur ; c’est une autre particularité du Givétien, car les dépôts du Paléozoïque inférieur et moyen des unités voisines de Puyhardy et de Chantonnay ont été déformés entre le Dévonien supérieur et le Namurien, c’est-à-dire lors de la phase structurale majeure du Domaine sud-armoricain.

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Bérato, Jacques, Jean-Marie Michel, Marc Borréani, and Chérine Gébara. "L'Age du fer dans la dépression permienne, et dans les massifs des Maures et de l'Estérel (Var) - Documents CD-Rom." Documents d'Archéologie Méridionale 18, no. 1 (1995): 141–647. http://dx.doi.org/10.3406/dam.1995.1209.

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Ducassou, Céline, Marc Poujol, Gilles Ruffet, Olivier Bruguier, and Michel Ballèvre. "Relief variation and erosion of the Variscan belt: detrital geochronology of the Palaeozoic sediments from the Mauges Unit (Armorican Massif, France)." Geological Society, London, Special Publications 405, no. 1 (2014): 137–67. http://dx.doi.org/10.1144/sp405.6.

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Calderaro, Norbert. "Révision du plan d'occupation des sols de La Londe-les-Maures. Classement en zone NA d'une zone précédemment classée en ND comprenant des espaces boisés appartenant à l'ensemble du massif des Maures. Obligation de conserver les ensembles boisés les plus significatifs. Loi « littoral » du 3 janvier 1986 et article L. 146-6 du Code de l'urbanisme. Présence d'habitations préjudiciable au maintien de l'unité paysagère des collines des Maures. Classement en zone NA constituant une erreur de droit. /Emplacement réservé pour la station d'épuration. Nécessité d'agrandir la station d'épuration et insuffisance du périmètre de protection alléguées par les requérants. Dispositions relatives à la qualité des eaux introduites par la loi « littoral » et entraînant, selon eux, l'illégalité des dispositions du P. O.S. élaborées en 1982 et simplement reconduites en 1987. Recevabilité du moyen. Argumentation technique et scientifique insuffisante. Absence d'erreur manifeste. Tribunal administratif de Nice, 21 septembre 1988 Union des contribuables londais pour l'intérêt public, Association La Londe-Environnement. Avec conclusions." Revue Juridique de l'Environnement 14, no. 1 (1989): 81–89. http://dx.doi.org/10.3406/rjenv.1989.2462.

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Ducassou, Céline, Michel Ballèvre, Hubert Lardeux, and Cécile Robin. "Evidence for pre-orogenic, Early Devonian rifting in the Variscan belt: stratigraphy and structure of the Palaeozoic cover of the Mauges Unit (Upper Allochthon, Armorican massif, France)." International Journal of Earth Sciences 100, no. 7 (December 22, 2010): 1451–75. http://dx.doi.org/10.1007/s00531-010-0605-3.

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Lefebvre, Bertrand, J. Javier Álvaro, Josep Maria Casas, Jean-François Ghienne, Alain Herbosch, Alfredo Loi, Eric Monceret, et al. "The Ordovician from France and neighbouring areas of Belgium and Germany." Geological Society, London, Special Publications 532, no. 1 (January 5, 2023). http://dx.doi.org/10.1144/sp532-2022-268.

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Abstract The Ordovician successions of France and neighbouring areas of Belgium and Germany are reviewed and correlated based on international chronostratigraphic and regional biostratigraphic charts. The same three megasequences related to the rift, drift, and docking of Avalonia with Baltica can be tracked in Belgium and neighbouring areas (Brabant Massif and Ardenne inliers), western (Rhenish Massif) and northeastern Germany (Rügen). The remaining investigated areas were part of Gondwana in the Ordovician. The Armorican Massif shares with the Iberian Peninsula a Furongian-Early Ordovician gap (Toledanian or Norman gap), and a continuous Mid-Late Ordovician shelf sedimentation. The Occitan Domain (Montagne Noire and Mouthoumet massifs), eastern Pyrenees and northwestern Corsica share with southwestern Sardinia continuous shelf sedimentation in the Early Ordovician, and a Mid Ordovician “Sardic gap”. In the Ordovician, the Maures Massif probably belonged to the same Sardo-Occitan domain. The Vosges and Schwarzwald massifs display comparable, poorly preserved Ordovician successions, suggesting affinities with the Teplá-Barrandian and/or Moldanubian zones of Central Europe.

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JOUFFRAY, Fabrice, Jean−Marc Lardeaux, Anne−Sophie Tabaud, Michel Corsini, and Julie Schneider. "Deciphering protoliths nature, protoliths age and peak P-T conditions in retrogressed mafic eclogites: An attempt in the metabasites from Maures-Tannneron Massif (SE France) and consequences for the southern European Variscides." BSGF - Earth Sciences Bulletin, March 28, 2023. http://dx.doi.org/10.1051/bsgf/2023006.

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We present new constraints on age, nature and tectonic setting of mafic eclogites protoliths from the Maures-Tanneron Massif, southern Variscan belt. Whole-rock major and trace elements geochemistry was combined with 206Pb/238U zircon dating to improve the understanding of this key-target of the European Southern Variscides. Geochemical data show that protoliths of the mafic eclogites are typical MORBs, while REE and HFSE patterns suggest an E-MORB affinity. However, the geochemical study shows several signs of crustal contamination, increasing with degree of retrogression. A comparison with Sardinian eclogites, which belong to the same Variscan micro-plate “MECS” (Maures-Estérel-Corsica-Sardinia), demonstrate that the eclogites included in migmatites, which is the case of the studied samples, are the most contaminated. Anyway, the Maures-Tanneron mafic eclogites represent the witness of oceanic basaltic crust. Zircon cores display homogeneous Th/U ratios (0.3-0.4), consistent with a magmatic origin, and define an age peak at ca. 500 Ma interpreted as the most plausible emplacement age of the basaltic protolith. This age suggests that this protolith was part of an oceanic floor older than the Rheic Ocean and located north of the Gondwana active continental margin as predicted by recent unified full plates reconstruction models. Although the eclogites studied are retrogressed the study of frozen mineral inclusions trapped in garnets combined with thermodynamic modelling yields a P-T range of 16.8-18.5 kbar for 630-660°C, coherent with standard subduction paleo-geotherm. These new data suggest that mafic eclogites recognized in the “MECS” Variscan micro-plate represent the closure of oceanic domains of different ages.

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Compagnoni, Roberto, Simona Ferrando, Bruno Lombardo, Nicholas Radulesco, and Daniela Rubatto. "Paleo-European crust of the Italian Western Alps: Geological history of the Argentera Massif and comparison with Mont Blanc-Aiguilles Rouges and Maures-Tanneron Massifs." Journal of the Virtual Explorer 36 (2010). http://dx.doi.org/10.3809/jvirtex.2010.00228.

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Bellot, J.-P. "The Palaeozoic evolution of the Maures massif (France) and its potential correlation with others areas of the Variscan belt: a review." Journal of the Virtual Explorer 19 (2005). http://dx.doi.org/10.3809/jvirtex.2005.00116.

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Elter, F. M., and E. Pandeli. "Structural-Metamorphic Correlations Between Three Variscan Segments In Southern Europe: Maures Massif (France), Corsica(France)-Sardinia(Italy), And Northern Appennines (Italy)." Journal of the Virtual Explorer 19 (2005). http://dx.doi.org/10.3809/jvirtex.2005.00119.

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Journal articles on the topic 'Massif maures'

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