Résumé
L’étude pétrologique du massif volcanique plio-quaternaire du Kouh-e-Shahsavaran Iran méridional) permet de mettre en évidence l’existence d’une serie calco-alcaline (41 analyses chimiques d’éléments majeurs) dans laquelle les andésites predominent sur les autres laves. A partir de ce résultat et en tenant compte des données structurales, les auteurs discutent la présence d’une zone de subduction au Nord du Golfe d’Oman, entre les plaques arabique, eurasienne et indienne. Le Makran pourrait alors correspondie à une losse émergée.
Abstract
Kouth-e-Shasavaran massif in South Iran (Baloutchistan) consists of Pliocene and Quaternary cale-alkaline lavas. Fourty one new chemical analysis have been carried out to identify the volcanic rock series. Andesites are more abundant than basic thigh alumina basalts) and acid lavas (dacites and rhyodacites). This volcanic area is probably connected with a subduction zone located on the North of Oman Gulf, between the arabic, indian and eurasian plates. In this respect, Makran range may be inerpreted as an emerged trench.
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Bibliographie
Baker, P. E., 1972,Volcanism at Destructive Plate Margins. J. of Earth Sciences, Leeds,8 (2), p. 183–204.
Conrad, G., Conrad J., Girod M., 1972,Données sur le volcanisme tertiaire et quaternaire affectant le bloc du Lout et les Monts de Kerman (Iran oriental). C. R. Somm. Soc. Géol. France,36–37, p. 196–197.
Ewart, A. andStipp J. J., 1968,Petrogenesis of the Volcanic Rocks of the Central North Island, New Zealand, as Indicated by a Study of Sr87/Sr86Ratios, and Sr, Rb, K, U and Th Abundances. Geochim. Cosmochim. Acta,32, p. 699–736.
Falcon, N. L., 1967,The Geology at the North-east Margin of the Arabian Basement Shield, Adv. Sci., Sept., p. 31–42.
Fernandez, A. C., Hörmann, P. K., Kussmaul, S., Meave, J., Pichler, H., Subieta, T., 1973,First Petrologic Data on Young Volcanic Rocks of S. W. Bolivia. Tschermaks Min. Petr. Mitt.,19, p. 149–172.
Forbes, R. B., Ray, D. K., Katsura, T., Matsumoto, H., Haramura, H., Furst, M. J., 1969,The Comparative Chemical Composition of Continental U. S. Island Arc Andesites in Alaska. Oregon Dept. Geology and Mineral Industries, Bull.,65, p. 111–120.
Hormann, P. K., Pichler, H., Zeil, W., 1973,New Data on the Young Vocanism in the Puna of NW-Argentina. Geol. Rundschau,62, p. 397–418.
Huckriede, R., Kursten, M. andVenzlaff, H., 1962,Zur Geologie des Gebietes zwischen Kerman und Sagand (Iran). Beih. Geol. Jb., Hannover,51, 197 pp.
Jakes, P. J. andSmith, J. E., 1970,High Potassium Calc-alkaline Rocks from Cape Nelson, Eastern Papua. Contr. Mineral. and Petrol.,28, p. 259–271.
————— andWhite, A. J. R., 1972,Major and Trace Element Abundances in Volcanic Rocks of Orogenic Areas. Geol. Soc. Am. Bull.,83, p. 29–40.
Jung, A., Kursten, M., Tarkian, M., 1975,Post-Mesozoic Volcanism in Iran and Its Relation to the Subduction of the Afro-arabian under the Eurasian Plate (in press: Afar-Monograph).
Lefevre, C., 1973,Les caractères magmatiques du volcanisme plio-quaternaire des Andes dans le Sud du Pérou. Contr. Mineral. and Petrol.,41, p. 259–272.
Miyashiro, A., 1972,Metamorphism and Related Magmatism in Plate Tectonics. Am. J. Sci.,272, p. 629–656.
Nowroozi, A. A., 1971,Seismo-tectonics of the Persian Plateau, Eastern Turkey, Caucasus and Hindu-Kush Regions. Bull. Seismological Soc. Am.,61 (2), p. 317–341.
Reyre, D. etMohafez, S., 1970,Une première contribution des accords NIOC-ERAP à la connaissance géologique de l’Iran (deuxième partie). Rev. Inst. Fr. Petrol.,9, p. 970–1014.
Siegers, A., Pichler, P., 1969,Trace Element Abundances in the « Andesite » Formation of Northern Chile. Geochim. Cosmochim. Acta,33, p. 882–887.
Stoneley, R., 1975,Evolution of the Continental Margin Bounding a Former Southern Thetys. In:Geology of Continental Margins,Burke andDrake (Edit.), Springer Verlag, p. 889–903.
Stöcklin, J., 1975,Possible Ancient Continental Margin in Iran. In:Geology of Continental Margins,Burke andDrake (Edit.), Springer Verlag, p. 873–888.
Taylor, S. R. andWhite, A. J. R., 1966,Trace Element Abundances in Andesites. Bull. Volcanol.,29, p. 177–194.
Varet, J., 1970,Contribution à l’étude des roches volcaniques du bassin du Lout (Iran). C. R. Somm. Soc. Géol. France, p. 194–195.
Vialon, P. V., Houchmand-Zahed, A., Sabzeih, M., 1972,Proposition d’un modèle de l’érolution pétro-structurale de qualques montagnes iraniennes comme une conséquence de la tectonique des plaques. 24th Intern. Geol. Congress. section 3, p. 196–208.
Wéllman, H. W., 1965,Active Wrench Faults of Iran Afgauistan and Pakistan. Geol. Rundschau,55, p. 716–735.
Westercamp, D., 1972,Contribution a l’étude du Volcanisme de la Martinique. Thèse de 3ème evele, Orsay (inedit).
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Contribution C.G.G. n. 187.
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Girod, M., Conrad, G. Les formations volcaniques récentes du Sud de l’Iran (Kouh-e-Shahsavaran): données pétrologiques préliminaires; implications structurales. Bull Volcanol 39, 495–511 (1975). https://doi.org/10.1007/BF02596972
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DOI: https://doi.org/10.1007/BF02596972