TECTONIC SETTING AND PETROGENESIS OF POST-EOCENE VOLCANIC ROCKS OF ABAZAR DISTRICT (NE OF QAZVIN)

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RAHIMI G.; KANANIAN A.; ASIABANHA A.

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Journal: Iranian Journal of Crystallography and Mineralogy Year:2010 | Volume:18 | Issue:2 Page(s): 167-180

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Title

TECTONIC SETTING AND PETROGENESIS OF POST-EOCENE VOLCANIC ROCKS OF ABAZAR DISTRICT (NE OF QAZVIN)

Author(s)

RAHIMI G. | KANANIAN A. | ASIABANHA A. | Issue Writer Certificate

Keywords

BASALTQ3

CALC-ALKALINEQ2

MAGMATIC-ARCQ2

POST-EOCENEQ2

RHYOLITEQ2

Abstract

Post-Eocene volcanic rocks of Alborz tectonic zone located in the NE of Qazvin, composed of RHYOLITE, trchydacite, trachyandesite, andesite, trachyBASALT and BASALT with porphyritic textures, pyroclastic rocks and volcanic red breccia which are settled alternatively on Eocene pyroclastics and tuffs. The volcanic rocks are enriched in LIL and depleted in HFS elements which may indicate a CALC-ALKALINE volcanic arc. However negative Ti and Nb anomalies as well as enrichment in LILE implied in generation of these rocks by a low grade partial melting of an enriched mantle on a subduction zone. The presence of a negative Ba anomaly in rhyolitic to andesitic rocks is a common characteristic for the upper continental crust and is a typical feature for high-K suite which reveals the role of upper crust contamination.

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References

SOME TURNING POINTS ON TECTONOMAGMATIC HISTORY OF IRAN

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APA: Copy

RAHIMI, G., KANANIAN, A., & ASIABANHA, A.. (2010). TECTONIC SETTING AND PETROGENESIS OF POST-EOCENE VOLCANIC ROCKS OF ABAZAR DISTRICT (NE OF QAZVIN). IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, 18(2), 167-180. SID. https://sid.ir/paper/3980/en

Vancouver: Copy

RAHIMI G., KANANIAN A., ASIABANHA A.. TECTONIC SETTING AND PETROGENESIS OF POST-EOCENE VOLCANIC ROCKS OF ABAZAR DISTRICT (NE OF QAZVIN). IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY[Internet]. 2010;18(2):167-180. Available from: https://sid.ir/paper/3980/en

IEEE: Copy

G. RAHIMI, A. KANANIAN, and A. ASIABANHA, “TECTONIC SETTING AND PETROGENESIS OF POST-EOCENE VOLCANIC ROCKS OF ABAZAR DISTRICT (NE OF QAZVIN),” IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, vol. 18, no. 2, pp. 167–180, 2010, [Online]. Available: https://sid.ir/paper/3980/en

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