GEOCHEMISTRY AND TECTONIC SETTING OF TOTMAJ TOLCANIC ROCKS, SE OF KASHAN

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AMIN ALROAYAEI YAMINI M.; KANANIAN A.; AHMADIAN J.

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Journal: JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT) Year:2007 | Volume:33 | Issue:1 (SECTION: GEOLOGY) Page(s): 27-38

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Information Journal Paper

Title

GEOCHEMISTRY AND TECTONIC SETTING OF TOTMAJ TOLCANIC ROCKS, SE OF KASHAN

Author(s)

AMIN ALROAYAEI YAMINI M. | KANANIAN A. | AHMADIAN J. | Issue Writer Certificate

Keywords

GEOCHEMISTRYQ3

BASALTQ3

SUBDUCTION ZONEQ3

CONTINENTAL VOLCANIC ARCQ3

TOTMAJQ3

Abstract

Totmaj volcano-sedimentary rocks, located at southeastern of Kashan, are mainly composed of BASALTandesite lava flow and pyroclastic rocks (various types of tuffs and agglomerate) which locally show an alternation with Oligocene fossiliferous shallow marine sedimentary rocks (limestone and sandstone). Based on major and trace elements geochemical data, the TOTMAJ volcanic rocks are very similar to calc-alkaline lava. They contain high Al2O3 and low Mg#(100 Mg/(Mg+Fe2+).Their Zr/Y ratio is more than 3, typical of CONTINENTAL VOLCANIC ARC rocks. In terms of N-MORB normalized trace element patterns, they show enrichment in K and Pb relative to Nb, Rb, P, and Ti, and also have a wide range of Ta/Yb ratios (between 2.3 to 8.9) and limited values for Th/Yb (0.3 to 1.9), characteristic of seduction-related rocks from orogenic belts.Their enrichment of large ion lithophile elements (LILE) and light rare earth elements (LREE) demonstrate that they have been probably originated from partial melting of enriched mantle wedge when it has been encountered with the released fluids from a subducted oceanic crust.

Cites

PETROLOGY AND GENESIS OF VASH GRANITOID NW NATANZ (ISFAHAN)

References

SOME TURNING POINTS ON TECTONOMAGMATIC HISTORY OF IRAN

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APA: Copy

AMIN ALROAYAEI YAMINI, M., KANANIAN, A., & AHMADIAN, J.. (2007). GEOCHEMISTRY AND TECTONIC SETTING OF TOTMAJ TOLCANIC ROCKS, SE OF KASHAN. JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT), 33(1 (SECTION: GEOLOGY)), 27-38. SID. https://sid.ir/paper/2051/en

Vancouver: Copy

AMIN ALROAYAEI YAMINI M., KANANIAN A., AHMADIAN J.. GEOCHEMISTRY AND TECTONIC SETTING OF TOTMAJ TOLCANIC ROCKS, SE OF KASHAN. JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT)[Internet]. 2007;33(1 (SECTION: GEOLOGY)):27-38. Available from: https://sid.ir/paper/2051/en

IEEE: Copy

M. AMIN ALROAYAEI YAMINI, A. KANANIAN, and J. AHMADIAN, “GEOCHEMISTRY AND TECTONIC SETTING OF TOTMAJ TOLCANIC ROCKS, SE OF KASHAN,” JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT), vol. 33, no. 1 (SECTION: GEOLOGY), pp. 27–38, 2007, [Online]. Available: https://sid.ir/paper/2051/en

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