Zircon U-Pb dating and geochemistry of the Moghanlou mylonite gneiss and granite intrusions, west of Zanjan

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HONARMAND MARYAM; NABATIAN GHASEM; AFLAKI MAHTAB; EBRAHIMI MOHAMMAD

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Journal: GEOSCIENCES Year:2020 | Volume:29 | Issue:116 Page(s): 239-252

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Information Journal Paper

Title

Zircon U-Pb dating and geochemistry of the Moghanlou mylonite gneiss and granite intrusions, west of Zanjan

Author(s)

HONARMAND MARYAM | NABATIAN GHASEM | AFLAKI MAHTAB | EBRAHIMI MOHAMMAD | Issue Writer Certificate

Keywords

Zircon datingQ2

GeochemistryQ2

GraniteQ2

GneissQ1

TakabQ2

Abstract

Geology, geochronology and tectonic setting of the Moghanlou mylonite Gneiss and Granite bodies, west of Zanjan Abstract The Moghanlou mylonite Gneiss and Granite assemblage is located in the west of Zanjan forming a part of the magmatic-metamorphic association in the Takab area. The Moghanlou assemblage comprises of leucoGranite and biotite Granite intrusions which have surrounded the Gneiss body. The zircon U-Pb dating shows the ages of 563± 6. 5 Ma for the mylonite Gneiss, 576± 13 Ma for the biotite Granite and 559± 6 Ma for the leucoGranite intrusions. Moreover, the samples from the Moghanlou assemblage display high-K calc-alkaline and slightly peraluminous affinities, except those from the leucoGranite which are low potassium samples due to the sodic alteration and albitization of the K-feldspars. The trace element patterns suggest LILE and LREE enrichment and HFSE and HREE depletion as well negative anomaly of Nb, Ta and Ti. In general, the geochemical features of the Moghanlou intrusions are comparable with the melts formed from crustal partial melting in magmatic arc environment. The Moghanlou assemblage is analogues to other Late Neoproterozoic-Early Cambrian igneous and metamorphic associations in Iran and Turkey which are related to the igneous activity along the Cadomian magmatic arc, in north of Gondwana supercontinent.

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APA: Copy

HONARMAND, MARYAM, NABATIAN, GHASEM, AFLAKI, MAHTAB, & EBRAHIMI, MOHAMMAD. (2020). Zircon U-Pb dating and geochemistry of the Moghanlou mylonite gneiss and granite intrusions, west of Zanjan. GEOSCIENCES, 29(116 ), 239-252. SID. https://sid.ir/paper/388662/en

Vancouver: Copy

HONARMAND MARYAM, NABATIAN GHASEM, AFLAKI MAHTAB, EBRAHIMI MOHAMMAD. Zircon U-Pb dating and geochemistry of the Moghanlou mylonite gneiss and granite intrusions, west of Zanjan. GEOSCIENCES[Internet]. 2020;29(116 ):239-252. Available from: https://sid.ir/paper/388662/en

IEEE: Copy

MARYAM HONARMAND, GHASEM NABATIAN, MAHTAB AFLAKI, and MOHAMMAD EBRAHIMI, “Zircon U-Pb dating and geochemistry of the Moghanlou mylonite gneiss and granite intrusions, west of Zanjan,” GEOSCIENCES, vol. 29, no. 116 , pp. 239–252, 2020, [Online]. Available: https://sid.ir/paper/388662/en

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