PETROLOGY OF THE VOLCANIC ROCKS IN ALIABAD AREA, NORTHEAST OF QOM

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RAZAVI SEYED MOHAMMAD HOSSEIN; BEHZAD R.

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Journal: JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY) Year:2006 | Volume:16 | Issue:61 (GEOLOGY ISSUE) Page(s): 127-137

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Title

PETROLOGY OF THE VOLCANIC ROCKS IN ALIABAD AREA, NORTHEAST OF QOM

Author(s)

RAZAVI SEYED MOHAMMAD HOSSEIN | BEHZAD R. | Issue Writer Certificate

Keywords

ALIABADQ3

QOMQ3

ACTIVE CONTINENTAL MARGINQ3

PETROLOGYQ4

MAGMA CONTAMINATIONQ3

Abstract

ALIABAD area is located northeast of QOM. Sedimentary rocks with Eocene, Oligocene and Miocene ages and quaternary sediments are present. Most of the area covered by pyroclastic and volcanic rocks which are affected by low metamorphism and alteration. Pyroclastic rocks are mainly tuff and ignimbrite and volcanic rocks are intermediate to basic olivine basalt, basalt andesiticbasalt and tracky-andesite. An intrusion with dykes and sills intruded Eocene pyroclastic rocks. Considering the geochemical diagrams, volcanic rocks are mainly sub-alkaline (calc-alkaline) type, but some samples show tholeiitic features. Microscopic studies and chemical analyses show MAGMA CONTAMINATION. Based on variety of rocks, basic to intermediate rocks are possibly formed from fractionation of basaltic magma with mantle source. However, based on presence of high volume of intermediate rocks and ignimbrite in the area, it is possible that they formed during partial meeting of the crust. The basic rocks formed in ACTIVE CONTINENTAL MARGIN.

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APA: Copy

RAZAVI, SEYED MOHAMMAD HOSSEIN, & BEHZAD, R.. (2006). PETROLOGY OF THE VOLCANIC ROCKS IN ALIABAD AREA, NORTHEAST OF QOM. JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY), 16(61 (GEOLOGY ISSUE)), 127-137. SID. https://sid.ir/paper/70523/en

Vancouver: Copy

RAZAVI SEYED MOHAMMAD HOSSEIN, BEHZAD R.. PETROLOGY OF THE VOLCANIC ROCKS IN ALIABAD AREA, NORTHEAST OF QOM. JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY)[Internet]. 2006;16(61 (GEOLOGY ISSUE)):127-137. Available from: https://sid.ir/paper/70523/en

IEEE: Copy

SEYED MOHAMMAD HOSSEIN RAZAVI, and R. BEHZAD, “PETROLOGY OF THE VOLCANIC ROCKS IN ALIABAD AREA, NORTHEAST OF QOM,” JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY), vol. 16, no. 61 (GEOLOGY ISSUE), pp. 127–137, 2006, [Online]. Available: https://sid.ir/paper/70523/en

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