ZIRCON U-PB GEOCHRONOLOGY AND LU- HF AND O ISOTOPES OF THE METAMORPHOSED INTRUSIVE ROCKS FROM SW SALMAS

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KOZEKOULANI F.; RAHGOSHAY M.; SHAFAII MOGHADAM H.

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Journal: GEOSCIENCES Year:2017 | Volume:26 | Issue:102 Page(s): 303-312

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Information Journal Paper

Title

ZIRCON U-PB GEOCHRONOLOGY AND LU- HF AND O ISOTOPES OF THE METAMORPHOSED INTRUSIVE ROCKS FROM SW SALMAS

Author(s)

KOZEKOULANI F. | RAHGOSHAY M. | SHAFAII MOGHADAM H. | Issue Writer Certificate

Keywords

U-PB GEOCHRONOLOGYQ1

LU-HF ANDO ISOTOPESQ1

METAGABBRO-METADIORITEQ1

GONDWANAQ2

NEOPROTEROZOICQ1

SALMASQ2

Abstract

Intrusive rocks from SW SALMAS include mafic-intermediate and acidic rocks, which occur in the border of Sanandaj-Sirjan and Urmia-Dokhtar zones in Northwest of Iran. The mafic-intermediate rocks comprise metadiorite and metagabbros that are the oldest rocks in the region. The acidic rocks include metagranite and metagranodiorite. These rocks have intruded into the Precambrian metamorphosed volcanic-sedimentary rocks. U-Pb zircon dating of the SALMAS metagranite and metagranodiric rocks yielded age ranges of 565±2.7 Ma to 567±2.4 Ma (Ediacaran-Early Cambrian). Zircons have inherited cores. Zircon Hf isotope data (and Hf model ages) indicate that these rocks are not juvenile mantle melt derived but instead are products of juvenile melts interaction with old Mesoproterozoic continental crust. Furthermore, zircon d18O values suggest contribution of continental crustal rocks during generation of the SALMAS rocks. The SALMAS Cadomian rocks are coeval with other similar-aged metagranites and gneisses from Central Iran, Sanandaj-Sirjan zone and Alborz Mountains. All these dispersed basement rocks are suggested to be fragments of the NEOPROTEROZOIC-early Cambrian magmatism of northern margin of GONDWANA.

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APA: Copy

KOZEKOULANI, F., RAHGOSHAY, M., & SHAFAII MOGHADAM, H.. (2017). ZIRCON U-PB GEOCHRONOLOGY AND LU- HF AND O ISOTOPES OF THE METAMORPHOSED INTRUSIVE ROCKS FROM SW SALMAS. GEOSCIENCES, 26(102), 303-312. SID. https://sid.ir/paper/31490/en

Vancouver: Copy

KOZEKOULANI F., RAHGOSHAY M., SHAFAII MOGHADAM H.. ZIRCON U-PB GEOCHRONOLOGY AND LU- HF AND O ISOTOPES OF THE METAMORPHOSED INTRUSIVE ROCKS FROM SW SALMAS. GEOSCIENCES[Internet]. 2017;26(102):303-312. Available from: https://sid.ir/paper/31490/en

IEEE: Copy

F. KOZEKOULANI, M. RAHGOSHAY, and H. SHAFAII MOGHADAM, “ZIRCON U-PB GEOCHRONOLOGY AND LU- HF AND O ISOTOPES OF THE METAMORPHOSED INTRUSIVE ROCKS FROM SW SALMAS,” GEOSCIENCES, vol. 26, no. 102, pp. 303–312, 2017, [Online]. Available: https://sid.ir/paper/31490/en

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