PETROGRAPHY, GEOCHEMISTRY AND GEODYNAMIC OF MORADLOO DIKES, NORTHWEST OF ARDEBIL (NW IRAN)

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GHASEMI BARGHI A.; VOSOUGHI ABEDINI M.; POURMOAFI S.M.

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Journal: GEOSCIENCES Year:2006 | Volume:16 | Issue:61 Page(s): 92-107

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Title

PETROGRAPHY, GEOCHEMISTRY AND GEODYNAMIC OF MORADLOO DIKES, NORTHWEST OF ARDEBIL (NW IRAN)

Author(s)

GHASEMI BARGHI A. | VOSOUGHI ABEDINI M. | POURMOAFI S.M. | Issue Writer Certificate

Keywords

DIKEQ2

CONTAMINATIONQ2

FRACTIONAL CRYSTALLIZATIONQ3

SHOSHONITIC CHARACTERISTICSQ3

GEODYNAMICSQ3

MORADLOOQ3

Abstract

Over 300 small and large DIKEs are exposed in MORADLOO district, covering an area of about 140 km2 in the north of Meshkin Shahr (NW of Iran). They dominantly oriented in NNE-SSW strike and intruded into the Lower Eocene volcanic breccias. Previoustudies showed that the rocks were Pyroxene and esite and tephrite, regardless of geochemistry and GEODYNAMICS. Our petrographic studies indicate that there are at least 6 different petrological groups and magma mixing and CONTAMINATION have played role in their formation. Geochemical diagrams not only emphasize the FRACTIONAL CRYSTALLIZATION as a principal process of magma evolution but also indicate their potassic and SHOSHONITIC CHARACTERISTICS and generation by the low degree partial melting of LlLE enriched source or metasomatized mantle materials. Finally discrimination diagrams show continental, post-collisional and islandarc settings for their emplacement. Analyzing all data obtained shows that the petrogenesis and GEODYNAMICS of the DIKEs are accompanied with complex model in which the partial melting of metasomatized mantle wedge, the melting of ancient subducted oceanic crust, the interpenetrating of tectonic regime and finally the fractionation and evolution of parent magma in chambers or conduits have had significant roles.

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APA: Copy

GHASEMI BARGHI, A., VOSOUGHI ABEDINI, M., & POURMOAFI, S.M.. (2006). PETROGRAPHY, GEOCHEMISTRY AND GEODYNAMIC OF MORADLOO DIKES, NORTHWEST OF ARDEBIL (NW IRAN) . GEOSCIENCES, 16(61), 92-107. SID. https://sid.ir/paper/31424/en

Vancouver: Copy

GHASEMI BARGHI A., VOSOUGHI ABEDINI M., POURMOAFI S.M.. PETROGRAPHY, GEOCHEMISTRY AND GEODYNAMIC OF MORADLOO DIKES, NORTHWEST OF ARDEBIL (NW IRAN) . GEOSCIENCES[Internet]. 2006;16(61):92-107. Available from: https://sid.ir/paper/31424/en

IEEE: Copy

A. GHASEMI BARGHI, M. VOSOUGHI ABEDINI, and S.M. POURMOAFI, “PETROGRAPHY, GEOCHEMISTRY AND GEODYNAMIC OF MORADLOO DIKES, NORTHWEST OF ARDEBIL (NW IRAN) ,” GEOSCIENCES, vol. 16, no. 61, pp. 92–107, 2006, [Online]. Available: https://sid.ir/paper/31424/en

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