Petrography and geochemistry of volcanic rocks of GhezelcheKand (NE Ghorveh), Iran
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2015, Vol 6, Issue 2
Abstract
Ghorveh town is part of Sanandaj-Sirjan area. GhezelcheKand volcano is part of volcanic basin of GhorvehTakab extending from North West to South East. This volcano is one of the greatest volcanos of Gharineh Mountain which is located 25 km far from Ghorveh in south west part of Gharineh mount. The volcano's crater that was collapsed during last volcanic eruption is formed as a side crater and is located in north east. The slope of scoria pyroclastic deposits create a domain with approximate slope of 24ยบ, this is one of the features of Stromboli eruption cones. Volcanic rocks include host magmas and strange rocks that are divided to three groups and two sub groups. These three groups are: 1) scoria magmas with basalt compounds 2) Granitoidic zeolite or felsic and 3) mantle zeolites. Group's rock are magmas and scoria pyroclastic magmatic sections (tefra), basaltic olivine rock (scoria) with porphyric texture with microlitic dough to vacuolar glassy rocks (scoria), this rock contains pyroxene and olivine phenocrysts, subsidiary amphibole deposits and dough. In geochemical graphs of Ghezelche-Kand, rocks are located in the compound zone of tephrite and phonolitictephrite, one of the samples is located in the area of tephritic phonolite. Moreover, in the magmatic series determination graph, the rocks are located in the alkaline area and in tectonic zone graph samples are in inter plate area.
Authors and Affiliations
S. J. Sheikhzakariaee, H. Kazemi kohbanani, M. Vossoughi Abedini, M. H. Emami
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