MINERALOGY AND ORIGIN OF GARNET IN ACIDIC VOLCANIC ROCKS OF DASTGERD AREA, QOM

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BAHARIFAR ALI AKBAR

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Journal: PETROLOGY Year:2011 | Volume:1 | Issue:4 Page(s): 1-14

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Information Journal Paper

Title

MINERALOGY AND ORIGIN OF GARNET IN ACIDIC VOLCANIC ROCKS OF DASTGERD AREA, QOM

Author(s)

BAHARIFAR ALI AKBAR | Issue Writer Certificate

Keywords

TRACHYITEQ1

DASTGERDQ3

RHYOLITEQ2

QOMQ2

GARNETQ2

PERALUMINOUS MAGMAQ2

Abstract

The rhyolitic and trachytic domes in south of DASTGERD in QOM province, contain GARNET phenocrysts. Based on the micro-probe analysis, GARNETs are almandine rich, and poor in other components. Considering the whole rock chemistry, the magmas of the area have continental origin or at least contaminated with a continental source. Based on chemical composition of biotites, the magmas are per aluminous with continental origin. Several evidences such as lack of any metamorphic xenocrysts or xenoliths, homogeneous composition of GARNETs, compositional equilibrium between GARNET and biotite, lack of metamorphic inclusions in GARNET and lack of reaction rims, in addition with the origin of host rocks and whole rock composition, indicate that GARNETs in the area could be crystallized from a per aluminous magma and they are igneous GARNETs.

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APA: Copy

BAHARIFAR, ALI AKBAR. (2011). MINERALOGY AND ORIGIN OF GARNET IN ACIDIC VOLCANIC ROCKS OF DASTGERD AREA, QOM. PETROLOGY, 1(4), 1-14. SID. https://sid.ir/paper/197018/en

Vancouver: Copy

BAHARIFAR ALI AKBAR. MINERALOGY AND ORIGIN OF GARNET IN ACIDIC VOLCANIC ROCKS OF DASTGERD AREA, QOM. PETROLOGY[Internet]. 2011;1(4):1-14. Available from: https://sid.ir/paper/197018/en

IEEE: Copy

ALI AKBAR BAHARIFAR, “MINERALOGY AND ORIGIN OF GARNET IN ACIDIC VOLCANIC ROCKS OF DASTGERD AREA, QOM,” PETROLOGY, vol. 1, no. 4, pp. 1–14, 2011, [Online]. Available: https://sid.ir/paper/197018/en

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