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Information Journal Paper

Title

High-Pressure Marbles from the Nahavand Area in the Sanandaj-Sirjan Metamorphic Belt, Iran

Pages

  139-151

Abstract

 Marbles containing high-pressure mineral assemblage was found from the Sanandaj-Sirjan metamorphic belt in the Nahavand area in western Iran. The high-pressure Marbles occur as small bodies or lenses within pelitic schist layers and show compositional banding of carbonate-and silicate-rich bands. Textural analysis revealed two metamorphic stages. The early stage is testified by relicts of the minerals such as rounded jadeite-bearing diopside, epidote (clinozoisite), amphibole 1 (pargasite-edenite) and titanite 1. The second stage (main stage) documented to have phlogopite, chlorite, amphibole 2 (tremolite) and titanite 2. P-T-XCO2 estimates for the early stage of metamorphism give an average pressure, temperature and XCO2 of 13. 5 kbar, 670 º C and 0. 35, whereas the second stage has been constrained at P=3. 8 kbar, T=500 º C and XCO2=0. 45. The high-pressure mineral assemblage documented in the Nahavand area, were formed during the subduction stage, while the second metamorphic blastesis were recorded during the exhumation event.

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    • Cite

    APA: Copy

    IZADYAR, J., & Skandari, N.. (2015). High-Pressure Marbles from the Nahavand Area in the Sanandaj-Sirjan Metamorphic Belt, Iran. JOURNAL OF SCIENCES ISLAMIC REPUBLIC OF IRAN, 26(2), 139-151. SID. https://sid.ir/paper/718635/en

    Vancouver: Copy

    IZADYAR J., Skandari N.. High-Pressure Marbles from the Nahavand Area in the Sanandaj-Sirjan Metamorphic Belt, Iran. JOURNAL OF SCIENCES ISLAMIC REPUBLIC OF IRAN[Internet]. 2015;26(2):139-151. Available from: https://sid.ir/paper/718635/en

    IEEE: Copy

    J. IZADYAR, and N. Skandari, “High-Pressure Marbles from the Nahavand Area in the Sanandaj-Sirjan Metamorphic Belt, Iran,” JOURNAL OF SCIENCES ISLAMIC REPUBLIC OF IRAN, vol. 26, no. 2, pp. 139–151, 2015, [Online]. Available: https://sid.ir/paper/718635/en

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