The investigation of petrology and geodynamic mafic magmatism in Bijar area, west of Iran (Arabia- Eurasia collision zone) |
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| Authors: | Monireh KHEIRKHAH and G MALEKI |
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| Institution: | Research Institute of Earth Sciences, Geological Survey of Iran;Research Institute of Earth Sciences, Geological Survey of Iran |
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| Abstract: | In northeastern Sanandaj-Sirjan structural zone, the Takab-Ghorveh belt comprises a volcanic province which related to the collision between the Eurasian and Arabian continents. It contains almost Quaternary andesitic basalt to alkali basalt. These alkali basaltes show Strombolian type eruptions. The volcanic rocks in Bijar area represent a range of mafic magmas, re-vealed by mingling and mixing textures. A variety of features suggest that the lava flows before eruption from magma chambers, contaminated by continental crust. |
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| Keywords: | Alkali basalt Quaternary volcanic contamination compression |
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