Esterellite
Esterellite (or Estérellite) is a porphyritic variety of quartz-bearing microdiorite, containing phenocrysts of quartz, zoned andesine, and hornblende only found in the southern part of the Esterel massif, between Agay and Saint-Raphael, France.[1] It is a bluish-grey rock, sometimes greenish, dotted with white plagioclase feldspar and amphibiole crystals, forming a thick laccolithic complex near Le Drammont.
This volcanic rock, also known as the blue porphyry of Estérel, was named by the French geologist Auguste Michel-Levy in 1896.[2][3] The Romans used it as paving materials but also for decorative purposes. Today, it is mainly used to make riprap, such as blocks for the dykes of the ports of Saint-Raphaël and Fréjus, railway ballast and road gravel.
Structure and composition
[edit]Esterellite is a porphyritic rock, completely crystalline, containing large phenocrysts (plagioclases, quartz, ferromagnesians), which are very visible to the naked eye, and a matrix of very small microcrystals.[4][5] The overall composition of this rock places it among the slightly alkaline andesites and dacites of the subalkaline igneous magma series, typical of subduction zones.[6]
The most visible crystals are numerous andesine-type plagioclases, often zoned (because they are more calcic in the centre), but also biotite and hornblende crystals. More rarely, a few macrocrystals of quartz (often patchy) or potassium feldspar can be found, but sometimes also augite.[7]
Origin and formation
[edit]The Esterellite outcrops in the southern part of the Estérel massif, between Agay and Saint-Raphaël, in the form of a small sub-elliptical massif, about 6 km long and 3 km wide, oriented NW-SE, cutting through Permian volcanic-sedimentary formations. It forms the Dramont laccolith, which is interbedded with Permian sandstones.[6]
While the bedrock of the Esterel dates back to the formation of the Hercynian chain (pre-Carboniferous), almost all the volcanic outcrops appeared 250 million years ago at the end of the Palaeozoic era (Permian). During this period, 30 million years of intense volcanic activity led to the formation of basalts and then red rhyolites (Maure-Vieil caldera: 43°30′36″N 6°54′0″E / 43.51000°N 6.90000°E). In the Oligocene, a new magma eruption deposited the esterellite laccoliths of Cap Dramont. In the Miocene (23 to 5 million years ago), a tectonic movement separated Corsica and Sardinia from present-day Provence. The same porphyries are found in the Esterel as in the Calanques de Piana in Corsica. Since then, the massif has undergone considerable erosion. It is mainly composed of porphyritic rocks, especially rhyolite, which gives it its characteristic reddish colour with occasional veins of blue esterellite.[4]
The Estérel massif has undergone two types of magmatisms:[6][8][9]
- Permian calc-alkaline volcanism, characterized by ignimbritic rhyolites with large extensions, flow banded rhyolite and punctual rhyolites;
- Permian alkaline volcanism, characterized by dolerite-textured basalts and microlitic-textured trachyandesites, characteristic of the Massif des Maures and the Toulon region and the later intrusion of Esterellite in the Cap Dramont area.
The esterellite was formed from magma that was not very hot and under low pressure.[10][11] The magma was therefore unable to reach the surface and formed a flattened magma chamber underground (laccolith), due to the strata between which the magma was forced to move and cooled down slowly. Over time, erosion of the overlying layers exposed these cooled magmatic rocks.[12][13][14][15]
Named "porphyre bleu de l'Estérel" by Horace Bénédict de Saussure in 1796, the esterellite owes its present name to Auguste Michel-Lévy, who in 1897 devoted to it the most complete petrographic study of the 19th century.[6][16] In the following decades, numerous authors studied the origin and characteristics of the esterellite, while the age of its formation gave rise to numerous controversies. Michel-Lévy (1912)[17] and Roche (1957)[18] favored a Tertiary age, while Bordet (1951)[19] suggested a Permian age. It wasn't until the 1970s that the Tertiary age was finally accepted.[20] between 61 and 53 Ma for Roubault (1970),[21] Oligocene for Baubron (1974)[22] and between 55 and 30 Ma for Giraud (1983).[23] The French BRGM gives between 26.3 and 34.2 Ma citing Baubron (1974) and between 33 and 56 Ma, determined with the K/Ar dating, citing Bellon (1977)[24] and Giraud (1983).[10][23] Using 40Ar/39Ar dating, Féraud (1995) estimated the age of samples of esterellites from Le Dramont at 32.7 ± 0.9 Ma and concluded that they were produced during a brief and unique event affecting the outer and inner Alpine domains between the Mediterranean and the Saint Raphael area.[25] This dating was confirmed by Ivaldi (2003) at 31.9 ± 0.7 Ma[26] and by Réhault (2012) at 33-31 Ma.[27]
The quartz-bearing microdiorite of Alghero (Cala Bona 40°32′41.91″N 8°19′16.11″E / 40.5449750°N 8.3211417°E) shows close petrographic and chemical analogies to the esterellites of the Estérel Massif.[28][29] The rock is very similar to the porphyry of Montagne Pelée in Martinique.[30]
Uses
[edit]Esterellite deposits were clearly visible along the coast between Boulouris and Agay and were easily accessible by sea. The Romans appreciated the solidity of esterellite.[32][33][34] It was mainly used locally as building material due to the lack of limestone in the region, notably in the amphitheater of Fréjus and the aqueduct from Mons to Fréjus and as riprap in the antique port of Fréjus.[35][36][31] It was also used in the form of cobblestones or gravel, as it was resistant to the hooped wheels of the chariots of the time and exported throughout France and Europe to build roads. The Romans also used it to decorate monuments in the south of France (Orange and Arles).[37]
Later, this porphyry was in demand in Rome as an exotic import since the early 3rd century A.D. under the Severan dynasty, mainly for use in columns.[37][38][39][40] The Roman quarries of Boulouris[41] exported stones also known as Porfido bigio,[42] Granito a morviglione[43] or Porfido bigio di Sibilio.[44][45][46][47] Charles Texier found three quarries in the Petits Caous sector, many traces of which were still preserved in 1849, before modern quarrying began in 1864.[31][48]
The Baths of Caracalla in Rome and the Bath of the Six Columns in Ostia are known to have used it.[49][50][35][51][52] In the Saint Peter's Basilica, the altar of the chapel of Pope St Gregory the Great is flanked by two remarkably large columns of esterellite coming form Boulouris quarries as well as the altar of Clementine chapel.[53][54][55] A column of esterellite is also visible in the octagonal courtyard in the Vatican museums.[56][48]
In the centuries that followed, it was used sparingly for decorative purposes in its production area of Fréjus, Vénasque, Cannes and Antibes, where it can be found in the form of columns and colonnettes, as well as pavements and wall coverings.[57] There are also limited examples of reuse of antique columns in the Romanesque chapel of Saint-Nicolas in Die and in the colonnade of the cloister of the fortified Lérins Abbey ont the Saint-Honorat island in the bay of Cannes.[58]
Since the 19th century, esterellite has been actively exploited for the manufacture of rubble stones (curbstones, paving stones,...).[59][60][61] Its high compressive strengths, larger than 1,000 kg/cm2 (14,000 psi), makes it suitable for a wide range of uses.[62] Its accelerated polishing coefficient makes it particularly suitable for motorway wearing courses.[63][64] It has also been used sparingly for ornamental purposes, notably in 1877 in the Basilica of Notre-Dame de Fourvière in Lyon for the side doors of the Porte des Lions and for the octagonal columns of the organ loft in the choir of the basilica.[65]
The resumption of the quarrying of esterellite at Le Dramont was made possible by the construction of the Marseille-Nice railway line by the Chemins de fer de Paris à Lyon et à la Méditerranée (PLM) next to the quarries. The section between Toulon and Les Arc was officially opened by the PLM on 1 September 1862 and the railway line reached Cagnes-sur-Mer on 10 April 1863. In 1864, the first quarrying concessions were granted by the prefect. In 1883, the company "Carrières de Porphyre de Saint-Raphaël" was founded when the Belgian entrepreneur Jules Dujaquier bought 45 hectares of land on the Dramont seafront (43°25′7.77″N 6°50′38.73″E / 43.4188250°N 6.8440917°E) next to the railway line.[66] In 1888, the company "Carrière de Prola" began extracting esterellite in a quarry overlooking the Bay of Agay (43°25′29.01″N 6°51′14.32″E / 43.4247250°N 6.8539778°E). The "quarrymen's village", the future district of Le Dramont, housed the workers, most of whom were Italian.[67] In the 1890s, local records show that paving stones were exported to modern-day Argentina, Bulgaria (Ruse), Romania (Brăila, Galați), Russia and Turkey.[68][69] The 1920s saw the peak of the quarrying activity in the Dramont area: 800 of the village's 2,000 inhabitants worked in the quarries.[66] In 1923, the "Carrières de Porphyre de Saint-Raphaël" owned 208 hectares[60] and purchased in 1932 the Prola quarry which was afterwards connected to the main quarry by a Decauville line to transport the cobblestones by wagon.[63][70]
The extraction of esterellite at Le Dramont ended in 1959. Since 2022, the "Maison des Carriers" museum in Saint-Raphaël retraces the industrial and human history of the site, which operated from 1864 to 1959.[71][72][73]
In 1959, Pierre Delli-Zotti founded the Grands Caous quarry (Provençal for ‘heat’), which he sold to Eiffage in 1998. It covers 45 hectares and it is authorized to produce up to 800,000 tonnes per year until 2042 (location: 43°25′53″N 6°49′35″E / 43.43139°N 6.82639°E). The esterellite of the Grands Caous quarry is mainly used for the production of ripraps, such as blocks for the dykes of the ports of Saint-Raphaël and Fréjus, railway ballast and road gravel.[74][75]
World War II
[edit]During World War II, the esterellite quarries were requisitioned by the Organisation Todt to supply materials for the construction of the Mediterranean Wall, along with some of the employees. The quarries were requisitioned by the Germans to supply materials for the construction of the Mediterranean Wall. To do this, the esterellite pebbles had to be transported from the beach to the crusher in small hand-loaded wagons loaded, pulled by small locomotives. This was a labor-intensive operation all along the Poussaï beach at Le Dramont. The quarry management insisted that the beach not be mined, for the safety of the quarry workers.[76] This request contributed to the success of the Operation Dragoon. The Allies landed on 15 August 1944 on Camel Green, code name of the vast pebble beach at Le Dramont, formed by the cobbles left over from sixty years of quarrying.[77][66] It was nicknamed the "Quarry beach" by the soldiers.[78]
See also
[edit]References
[edit]- ^ Holmes, Arthur (1920). The nomenclature of petrology, with references to selected literature. University of California Libraries. London, Thomas Murby & co. p. 94.
- ^ Michel-Lévy, Auguste (1896). "Sur quelques particularités de gisement du porphyre bleu de l'Esterel". Bulletin de la Société géologique de France. 3. 24. Paris: Société géologique de France.: 123–139. Archived from the original on 2024-07-31. Retrieved 2024-07-31.
- ^ Michel-Lévy, Auguste (1897). Mémoire sur le porphyre bleu de l'Estérel (in French). Archived from the original on 2024-07-31. Retrieved 2024-07-31.
- ^ a b "Géologie de l'Estérel". Estérel pour tous (in French). Archived from the original on 2024-08-03. Retrieved 2024-08-03.
- ^ Bates, Robert Latimer; Jackson, Julia A. (1987). Glossary of geology (3rd ed.). Alexandria, Va: American Geological Institute. p. 223. ISBN 978-0-913312-89-6.
- ^ a b c d Mari, Gilbert; Grauby, Olivier; Sic, Jérôme (2015). "Nouvelle contribution à l'étude des grenats de l'Estérel (Var, France)" (PDF). Riviera Scientifique (in French). 99: 31–48. Archived (PDF) from the original on 2024-08-06. Retrieved 2024-08-06.
- ^ Bordet, P (1966). L'Esterel et Le Massif de Tanneron (in French). Hermann. OCLC 844357920.
- ^ Nicod, Jean (1973). "Du nouveau sur le volcanisme et le permien de l'Estérel". Méditerranée (in French). 14 (3): 83–86. doi:10.3406/medit.1973.1502. Archived from the original on 2024-07-30. Retrieved 2024-07-30.
- ^ Crevola, Gilbert (2010). "Le volcanisme rhyolitique du massif de l'Esterel : évolution des connaissances" (PDF). Riviera Scientifique (in French). 94: 33–52. Archived (PDF) from the original on 2024-05-25. Retrieved 2024-08-02.
- ^ a b Dardeau, G.; Dubar, M.; Toutin-Morin, N.; Courme, M.-D.; Crévola, G.; Mangan, C. Notice explicative de la feuille Grasse-Cannes à 1/50 000 (PDF) (in French) (2 ed.). Bureau de Recherches Géologiques et Minières. ISBN 978-2-7159-1999-0. Archived (PDF) from the original on 2024-05-13. Retrieved 2024-07-31.
- ^ Toutin-Morin, Nadège; Crévola, Gilbert; Giraud, Jean-Dominique (1994), Notice explicative de la feuille Fréjus – Cannes à 1/50 000 (in French), Bureau de recherches géologiques et minières (2 ed.), Orléans: BRGM, ISBN 978-2-7159-2024-8
- ^ Boucarut Marc (1971) – Étude volcanologique et géologique de l’Estérel (Var, France). Thèse Doct. d’État, Univ. Nice, 2 t., 487 p
- ^ Baubron, J.C. (1984), Volcanisme du Sud-Est de la France. In Synthèse géologique du Sud-Est de la France, Mém. BRGM, n° 125, p. 514-517.
- ^ Lassalle, Laurence (2022). "Le volcanisme permo-triasique du massif de l'Estérel (Var et Alpes-Maritimes, France). Mise en place des rhyolites et autres roches d'origine volcanique et sédimentaire en contexte distensif post-orogénique varisque". Saga Information (in French). 390: 16–31. Archived from the original on 2024-07-31. Retrieved 2024-07-31.
- ^ Lassalle, Laurence (2022). "Les rhyolites permo-triasiques et autres roches du massif de l'Estérel (Var et Alpes-Maritimes, France). Une source d'approvisionnement en matière première d'origine volcanique au Paléolithique ancien et moyen" (PDF). Riviera Scientifique (in French). 106: 3–32. Archived (PDF) from the original on 2024-08-06. Retrieved 2024-07-31.
- ^ de Saussure, Horace Bénédicte (1796). "Chapitre XX. Montagnes de la Sainte Beaume & du Cap Roux." (PDF). Voyages dans les Alpes, précédés d'un essai sur l'histoire naturelle des environs de Genève. Fauche-Bore. doi:10.3931/e-rara-11885. Archived from the original on 2024-08-06. Retrieved 2024-08-06.
- ^ Michel-Lévy, Albert (1912). "L'Estérel. Etude stratigraphique, pétrographique et tectonique". Bulletin du Service de la carte géologique de la France. 21: 265–321.
- ^ Roche, Alexandre (1957). "Sur l'aimantation des roches volcaniques de l'Estérel". Comptes rendus hebdomadaires des séances de l'Académie des sciences (in French). 244: 2952–2954. Archived from the original on 2023-11-30. Retrieved 2024-08-06 – via Gallica.
- ^ Bordet, P. (1951). Etude géologique et pétrographique de l'estérel. Mémoires pour servir à l'explication de la carte géologique détaillée de la France. Ministère des Travaux Publics. pp. 1–207. Archived from the original on 2024-08-06. Retrieved 2024-08-06.
- ^ Moullade, Michel (1978), Nairn, Alan E. M.; Kanes, William H.; Stehli, Francis G. (eds.), "The Ligurian Sea and the Adjacent Areas", The Ocean Basins and Margins, Boston, MA: Springer, pp. 67–148, doi:10.1007/978-1-4684-3039-4_2, ISBN 978-1-4684-3039-4, archived from the original on 2024-08-08, retrieved 2024-08-08
- ^ Roubault, Marcel; Bordet, Pierre; Leutwein, Friedrich; Sonet, Jacques; Zimermann, Jean-Louis (1970). "Age absolu des formations volcaniques du Tanneron Estérel (Var)". Comptes rendus hebdomadaires des séances de l'Académie des sciences. 271: 1157–1160 – via Gallica.
- ^ Baubron, J. C. (1974), Etude de l'évolution magmatique des formations calco-alcalines tertiaires de Provence et Haute-Provence par la géochimie du rubidium et du strontium, Rapport B.R.G.M., v. 74 SGN 003 LAB (in French).
- ^ a b Giraud J.D. (1983), L’arc andésitique paléogène des Alpes occidentales: pétrologie, volcanologie, signification géodynamique, Thèse de Doctorat d’État, Université de Nice, 378 p.
- ^ Bellon, Hervé; Brousse, Robert (1977). "Le magmatisme périméditerranéen occidental – essai de synthese". Bulletin de la société géologique de France. 7 (in French). XIX (3): 469–480. doi:10.2113/gssgfbull.S7-XIX.3.469.
- ^ Féraud, G.; Ruffet, G.; Stéphan, J.F.; Lapierre, H.; Delgado, E.; Popoff, M. (1995). "Nouvelles données géochronologiques sur le volcanisme paléogène des Alpes occidentales: existence d'un événement magmatique bref généralisé." (PDF). Magmatismes dans le sud-est de la France (in French). Nice: Société géologique de France et de l'Association des Géologues du Sud Est. p. 38. Archived (PDF) from the original on 2024-02-16. Retrieved 2024-07-31.
- ^ Ivaldi, Jean-Pierre; Bellon, Hervé; Guardia, Pierre; Mangan, Christian; Müller, Carla; Perez, Jean-Louis; Terramorsi, Serge (2003). "Contexte lithostructural, âges 40K-40Ar et géochimie du volcanisme calco-alcalin tertiaire de Cap-d'Ail dans le tunnel ferroviaire de Monaco" (PDF). Comptes Rendus. Géoscience (in French). 335 (4): 411–421. doi:10.1016/S1631-0713(03)00061-0. ISSN 1778-7025.
- ^ Réhault, J.-P.; Honthaas, C.; Guennoc, P.; Bellon, H.; Ruffet, G.; Cotten, J.; Sosson, M.; Maury, R.C. (July 2012). "Offshore Oligo-Miocene volcanic fields within the Corsica-Liguria Basin: Magmatic diversity and slab evolution in the western Mediterranean Sea". Journal of Geodynamics. 58: 73–95. Bibcode:2012JGeo...58...73R. doi:10.1016/j.jog.2012.02.003.
- ^ Giraud, J. P. (1975), Une Intrusion Calco-Alcaline Type: L'Esterellite – Position dans Ie Contexte Volcanologique Tertiaire Regional, Thesis (3rd Cycle), University of Nice (in French).
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- ^ Lacroix, A. (1908). La montagne pelée après ses éruptions (in French). Paris. p. 70.
{{cite book}}
: CS1 maint: location missing publisher (link) - ^ a b c Excoffon, Pierre (2021), Carre, Marie-Brigitte (ed.), "Découvertes récentes à l'extrémité de la jetée méridionale du port romain de Forum Iulii (Fréjus, Var)", Les ports dans l’espace méditerranéen antique : Fréjus et les ports maritimes, Archéologies méditerranéennes (in French), Aix-en-Provence: Presses universitaires de Provence, pp. 113–136, ISBN 979-1-03-200484-5, archived from the original on 2024-08-03, retrieved 2024-08-03
- ^ Brentchaloff, D.; Mazeran, R. (1999), Exploitation antique de l’esterellite: mise au point pétro-archéologique, Mémoires de l’Institut de Préhistoire et d’Archéologie Alpes Méditerranée, XLI:17-26.
- ^ Mazeran, R. (2004). "L'exploitation du porphyre bleu de l'Estérel à l'époque romaine". In Chardron-Picault, P.; Lorenz, J.; Rat, P.; Sauron, G. (eds.). Les roches décoratives dans l'architecture antique et du haut Moyen âge. Archéologie et histoire de l'art (in French). Paris: Ministère de l'éducation nationale, de l'enseignement supérieur et de la recherche. pp. 129–136. ISBN 978-2-7355-0511-1.
- ^ Amicale des Raphaelois. "Carrière Gallo-Romaine de Boulouris". Archived from the original on 2024-08-02. Retrieved 2024-08-02.
- ^ a b Gébara, Chérine; Morhange, Christophe (2010). "Fréjus (Forum Julii): le Port Antique / the Ancient Harbour". Journal of Roman Archaeology (Supplement 77): 102–107. Archived from the original on 2024-07-31. Retrieved 2024-07-31.
The mooring-columns of esterellite
- ^ Russell, Ben (2013). The economics of the Roman stone trade. Oxford studies on the Roman economy. Oxford University Press. p. 77. ISBN 978-0-19-965639-4. OCLC 867827680. Archived from the original on 2024-08-06. Retrieved 2024-08-01.
- ^ a b Bellair, Pierre (1982). Eléments de géologie (in French). Paris : A. Colin. p. 192. ISBN 978-2-200-21001-4.
- ^ "Porfido bigio". ISPRA Istituto Superiore per la Protezione e la Ricerca Ambientale (in Italian). Archived from the original on 2024-08-06. Retrieved 2024-08-06.
- ^ Fant, J. Clayton; Long, Leah E.; McAlpine, Lynley J. (2024-08-19). Roman Decorative Stone Collections in the Kelsey Museum of Archaeology. University of Michigan Press. ISBN 978-0-472-13195-2. Archived from the original on 2024-08-06. Retrieved 2024-08-04.
- ^ Pensabene, Patrizio (2002). "Il fenomeno del marmo nel mondo romano". In De Nuccio, Matilda; Ungaro, Lucrezia (eds.). I I marmi colorati della Roma imperiale (in Italian). Marsilio. pp. 3–67. ISBN 978-88-317-8117-6.
- ^ Several quarries were exploited by the Romans in the Boulouris area. Some remains are still visible nowadays: 43°25′26.41″N 6°49′8.38″E / 43.4240028°N 6.8189944°E and 43°25′30.03″N 6°49′52.34″E / 43.4250083°N 6.8312056°E.
- ^ Fine-grained sub-varieties of esterellite is also known as Porfido bigio verde, Granito pedicolare or Granito pidocchioso.
- ^ Ancient Romanesco word for smallpox or the marks left by smallpox (Pullen 2018).
- ^ Named after Francesco Sibilio (1784–1859), a master marble craftsman and antiquities dealer in Rome.
- ^ "Granito bigio, granito a morviglione, porfido bigio di Sibilio, from the area between Frejus and Dramont, Esterel Mountains, Var, France". Corsi Collection of Decorative Stones – Stones – Natural History Museum Oxford. Archived from the original on 2019-10-17. Retrieved 2024-07-31.
- ^ Conte, R.; D'Elia, Angela; Delluniversità, Emanuela; Fioretti, Giovanna; Florio, E.; Navarra, Maria (2015). "Stones and ancient marbles of the 'Francesco Belli' collection: archaeological, art-historical, antiquarian, geological-technical and petrographical aspects". Proceedings of the Tenth International Conference of ASMOSIA.
- ^ Lazzarini, L.; Sangati, C. (2004). "I più importanti marmi e pietre colorati usati dagli antichi". In Lazzarini, Lorenzo (ed.). Pietre e marmi antichi: natura, caratterizzazione, origine, storia d'uso, diffusione, collezionismo (in Italian). Padova: CEDAM. ISBN 978-88-13-25021-8.
- ^ a b Texier, Charles (1849). "Troisième mémoire. Sur les anciennes carrières de Fréjus, et sur les matériaux employés par les Romains". Mémoires présentés par divers savants à l'Académie des inscriptions et belles-lettres de l'Institut de France. Deuxième série, Antiquités de la France. Mémoires sur la ville et le port de Fréjus (in French). 2 (1): 240–272. doi:10.3406/mesav.1849.1137. ISSN 1267-9003. Archived from the original on 2024-08-03. Retrieved 2024-08-03.
- ^ Lanciani, Rodolfo Amedeo (1913). Storia degli scavi di Roma e notizie intorno le collezioni romane di antichità. Vol. 4. Roma, E. Loeschler & Co. p. 58.
- ^ Pensabene, Patrizio, ed. (1998). Marmi antichi II: cave e tecnica di lavorazione, provenienze e distribuzione. Studi miscellanei. Roma: L'Erma di Bretschneider. p. 340. ISBN 978-88-7062-998-9.
- ^ Bedon, R. (1984), Les Carrières et les carriers de la Gaule Romaine. Paris.
- ^ Pensabene, Patrizio; Lazzarini, Lorenzo (2007). Ostiensium marmorum decus et decor: studi architettonici, decorativi e archeometrici (in Italian). L'ERMA di BRETSCHNEIDER. p. 222. ISBN 978-88-8265-345-3. Retrieved 2024-08-08.
- ^ Pullen, Henry William (2018). Handbook of ancient Roman marbles: by Henry William Pullen. Gangemi Editore. p. 64. ISBN 978-88-492-4248-5.
- ^ Gnoli, Raniero (1988). Marmora romana (in Italian). Edizioni dell'Elefante. pp. 140–141. ISBN 978-88-7176-033-9.
- ^ Tani, Ariside D. (1922). Le chiese di Roma : guida storico-artistica : chiese stazionali. Harold B. Lee Library. Torino : Edizioni d'arte E. Celanza. pp. 302, 306.
- ^ Musei Vaticani Catalogo Online – Inventario. "Fusto di colonna liscia con capitello moderno [MV.989.0.0]". catalogo.museivaticani.va. Archived from the original on 2024-08-03. Retrieved 2024-08-03.
- ^ Rochette, P.; Ambrosi, J. P.; Amraoui, T.; Andrieu, V.; Badie, A.; Borgard, Ph.; Gattacceca, J.; Hartmann-Virnich, A.; Panneau, M.; Planchon, J. (2022-04-01). "Systematic sourcing of granite shafts from Gallia Narbonensis and comparison with other western Mediterranean areas" (PDF). Journal of Archaeological Science: Reports. 42: 103372. Bibcode:2022JArSR..42j3372R. doi:10.1016/j.jasrep.2022.103372. ISSN 2352-409X. Archived (PDF) from the original on 2024-08-08. Retrieved 2024-08-08.
- ^ Brentchaloff, Daniel; Mazeran, René (1999), Exploitation antique de l’estérellite: mise au point pétro-archéologique, Mémoires de l’Institut de préhistoire et d’archéologie Alpes Méditerranée, XLI:17-26.
- ^ Bech, M (1957). "Les paves de Toulon, ce qu'ils sont, d'ou ils viennent". Annales de la Société d'histoire naturelle de Toulon (9): 106–109. Archived from the original on 2024-07-31. Retrieved 2024-07-31.
- ^ a b Bureau 3C. "Sous les pavés, la plage ….ou l'histoire des carrières du Dramont ( épisode 2 )". Le Blog du 3C – Collectif des Copropriétaires de Cap Esterel (in French). Archived from the original on 2024-08-06. Retrieved 2024-08-03.
{{cite web}}
: CS1 maint: numeric names: authors list (link) - ^ "Les carrières du Dramont avant la construction de l'ile d'Or". Cap Estérel (in French). Archived from the original on 2024-07-31. Retrieved 2024-08-03.
- ^ Rivet, F. (2017). Schéma Régional des Carrières Provence-Alpes-Côte d'Azur – Inventaire des ressources primaires (PDF) (in French). p. 49. Archived (PDF) from the original on 2022-03-03. Retrieved 2024-07-31.
- ^ a b ""PROLA", la carrière de porphyre oubliée". CAP ESTEREL ASCAPE (in French). Archived from the original on 2024-07-30. Retrieved 2024-07-30.
- ^ "Les carrières du Dramont avant la construction de l'ile d'Or". CAP ESTEREL ASCAPE (in French). Archived from the original on 2024-07-31. Retrieved 2024-07-30.
- ^ Tritenne, Dominique (1999). "Le porphyre de Plancher-les-Mines (Haute-Saône) à Notre-Dame de Fourvière (Lyon)". In Poupard, Laurent; Richard, Annick (eds.). Marbres en Franche-Comté : actes des journées d'études, Besançon, 10-12 juin 1999 (PDF) (in French). pp. 111–122.
- ^ a b c Carrière des Grands Caous. "Le sentier paysager des Grands Caous" (PDF) (in French). Archived (PDF) from the original on 2021-04-14. Retrieved 2024-08-03.
- ^ Violino, Jean-Pierre (2023). "La vie au village du Dramont, quartier populaire de Saint Raphaël. Les carriers fin 19e et première moitié du 20e siècle". Bulletin de la société d'histoire de Fréjus. 24: 45–58. Archived from the original on 2024-08-06. Retrieved 2024-08-04.
- ^ Conseil général du Var (1893-08-01). "Rapports et délibérations du Conseil général du Département du Var" (in French). p. CXXII. Archived from the original on 2024-08-04. Retrieved 2024-08-04 – via Gallica.
- ^ Conseil général du Var (1892-08-01). "Rapports et délibérations du Conseil général du Département du Var" (in French). p. CCXIII. Archived from the original on 2024-08-04. Retrieved 2024-08-04 – via Gallica.
- ^ Inventaire des Réseaux Spéciaux et Particuliers (4 June 2021). "Réseau des carrières de porphyre du Dramont (IRSP n°83118.1)" (PDF). Inventaires Ferroviaires de France (in French). Archived (PDF) from the original on 12 May 2024. Retrieved 4 August 2024.
- ^ Saint-Raphaël (31 March 2022). "Le Dramont : la Maison des Carriers a ouvert ses portes".
- ^ Découvrez l'histoire fascinante des Carriers du Dramont's channel on YouTube
- ^ La Maison des Carriers. "Audioguide – L'exploitation des carrières". www.ffagh.org (in French). Archived from the original on 2024-08-04. Retrieved 2024-08-04.
- ^ Joris, Jocelyne (2016-10-12). "Le nouveau projet de la carrière des Grands Caous à Saint-Raphaël". Var-Matin (in French). Archived from the original on 2024-07-31. Retrieved 2024-07-31.
- ^ "Carrière de Boulouris". Materiaux Eiffage Route (in French). Archived from the original on 2024-02-27. Retrieved 2024-07-31.
- ^ La Maison des Carriers. "Audioguide: les carrières histoire et environnement visite". www.ffagh.org (in French). Archived from the original on 2024-08-04. Retrieved 2024-08-04.
- ^ Zaloga, Steven J. (2009). Operation Dragoon 1944: France's other D-Day. Osprey Publishing. p. 46. ISBN 978-1-84603-367-4.
- ^ Samuel Eliot Morison (1957). The Invasion Of France And Germany 1944–1945. History of United States naval operations in World War II. Vol. XI. p. 268.
Further reading
[edit]- Jean-Pierre Herreyres (2014). "Le Dramont. De la cité ouvrière au centre touristique 150 ans d’histoire : L’île d’Or". Publications de la Société d'histoire de Fréjus et de sa région. Hors-série (19): 110. ISSN 1773-7796 (in French).
- Lazzarini, Lorenzo (2019), "Ancient Mediterranean polychrome stones", The Contribution of Mineralogy to Cultural Heritage, Mineralogical Society of Great Britain and Ireland, pp. 367–392, doi:10.1180/emu-notes.20.10, ISBN 978-0-903056-61-8, retrieved 2024-08-07
- Quin, J.P. (1963). "Quelques complements à la pétrographie de l'estérellite". Travaux Laboratoire Géologie Faculté Sciences Université Aix-Marseille. (in French).
- Wever, Patrick de; Cornée, Annie; Egoroff, Grégoire; Collin, Gérard; Duranthon, Francis; Lalanne, Arnault; Kermadec, Claire de; Lucet, Stéphane (2019-01-16). "Patrimoine géologique : notion, état des lieux, valorisation". Naturae (in French). 2019 (1): 1–58. It contains a list of rocks whose name is based on a locality or a family name.
External links
[edit]- "Dacite (Esterellite)". lithotheque.ens-lyon.fr. Retrieved 2024-07-31.
- Esterellite, Mindat.org
- Crocenzi, Francesco Paolo. "Porfido Bigio". www.romanmarbles.com. Retrieved 2024-08-06.