GEOCHEMISTRY AND PETROLOGY OF BASALTS IN THE NORTHEAST OF NEYSHABOUR, NE IRAN

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FAZEL VALIPOUR MOHAMMAD EBRAHIM; BAKHSHI MAZDEH MARJAN

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Journal: GEOCHEMISTRY Year:2013 | Volume:1 | Issue:3 Page(s): 239-249

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Information Journal Paper

Title

GEOCHEMISTRY AND PETROLOGY OF BASALTS IN THE NORTHEAST OF NEYSHABOUR, NE IRAN

Author(s)

FAZEL VALIPOUR MOHAMMAD EBRAHIM | BAKHSHI MAZDEH MARJAN | Issue Writer Certificate

Keywords

BASALTQ2

ALKALI BASALTQ2

PETROLOGYQ2

NORTHEAST IRANQ2

NEYSHABOURQ2

CALEDONIANQ2

Abstract

The BASALTic rocks are located in the northeast of darrod city-Neyshabour, NORTHEAST IRAN between longitudes of 59o 8' to 59o 16' E and latitudes of 36o 7' to 36o 11' N. The age of these rocks is Silurian and they have various petrographic composition including normal BASALT, olivine-BASALT, trachyBASALT, BASALTic andesite, BASALTic trachyandesite, and dolerite. On the basis of the trace elements geochemistry, the rocks are alkali BASALTs. The geological map of Torghabeh reports these rocks as pillow lavas, however, the study area is tectonized and these rocks are fragmented, hence pillow structures were not found in this area. The different diagrams show that the rocks were produced from an alkaline magma. Spider diagrams of incompatible elements such as LILE (Ba, Rb, K, Th) show an intense impression of alteration process, and enrichment of HFSE (Nb, Ti, Ta) shows enriched mantle source (asthenosphere) for these rocks. Also Pb positive anomaly in spider diagrams shows crustal contamination in petrogenesis of these rocks. Tectonic setting for the BASALTic rocks is a within-plate setting. Since coral fossils in the carbonate-sandstone facies of the area belong to Devonian, it can be concluded that volcanic rocks erupted at a shallow water environment during CALEDONIAN phase.

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References

GEOCHEMISTRY OF LATE MESOZOIC MAFIC MAGMATISM IN WEST SHANDONG PROVINCE, EASTERN CHINA: CHARACTERIZING THE LOST LITHOSPHERIC MANTLE BENETH THE NORTH CHINA BLOCK

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APA: Copy

FAZEL VALIPOUR, MOHAMMAD EBRAHIM, & BAKHSHI MAZDEH, MARJAN. (2013). GEOCHEMISTRY AND PETROLOGY OF BASALTS IN THE NORTHEAST OF NEYSHABOUR, NE IRAN. GEOCHEMISTRY, 1(3), 239-249. SID. https://sid.ir/paper/230860/en

Vancouver: Copy

FAZEL VALIPOUR MOHAMMAD EBRAHIM, BAKHSHI MAZDEH MARJAN. GEOCHEMISTRY AND PETROLOGY OF BASALTS IN THE NORTHEAST OF NEYSHABOUR, NE IRAN. GEOCHEMISTRY[Internet]. 2013;1(3):239-249. Available from: https://sid.ir/paper/230860/en

IEEE: Copy

MOHAMMAD EBRAHIM FAZEL VALIPOUR, and MARJAN BAKHSHI MAZDEH, “GEOCHEMISTRY AND PETROLOGY OF BASALTS IN THE NORTHEAST OF NEYSHABOUR, NE IRAN,” GEOCHEMISTRY, vol. 1, no. 3, pp. 239–249, 2013, [Online]. Available: https://sid.ir/paper/230860/en

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