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Pearce, J.A. (1996) A User’s Guide to Basalt Discrimination Diagrams, in Trace Element Geochemistry of Volcanic Rocks: Applications for Massive Sulphide Exploration: Geol. Assoc. Can. In: Wyman, D.A., Ed., Short Course Notes, Vol. 12, Geol. Assoc. of Can., St. John’s, Newfoundland, 79-113.

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• TITLE: Geochemistry and Tectonic Setting of Kohe Siahvolcanoes, North Qorveh, Sanandaj, Iran

  AUTHORS: Somaye Kazemi Koohbanani, Seyed Jamal Sheikhzakariee, Mohammad Hashem Emami, Rahim Dabiri

  KEYWORDS: Alkaline Rocks, Kohesiah Volcanoes, Dome, Qorveh, Tectonic Setting

  JOURNAL NAME: Open Journal of Geology, Vol.8 No.5, May 15, 2018

  ABSTRACT: The KoheSiah Volcanoes are located in the North of Qorveh city in the west of Iran. The KoheSiah volcanoes include several craters bearing domes located in the Kordestan Province, between latitudes 35°23'13.54” to 35°21'26.63”N and longitudes 47°54'38.26”E to 47°56'01.42”E. Based on the petrographic and geochemical analysis, the volcanic rocks in the KoheSiah area are classified as basalt, Alkali basalt, trachy-andesites and mugearite. The studied samples are alkaline with sodic to potasic feature based on Na2O/K2O ratios and belonging to Shoshonite series. Most of the alkaline volcanic rocks in the study area fall in the field of within in plate basalts (WPB) and represent of a mantle metasomatism trend associated with variable degrees in the partial melting of an enriched mantle source.