Mineral Chemistry and Thermobarometry of the Volcanic Rocks in Torud, Iran - Open Journal of Geology

OJG > Vol.4 No.9, September 2014

Open Journal of Geology

Volume 4, Issue 9 (September 2014)

ISSN Print: 2161-7570 ISSN Online: 2161-7589

Google-based Impact Factor: 0.83 Citations h5-index & Ranking

Mineral Chemistry and Thermobarometry of the Volcanic Rocks in Torud, Iran ()

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Download as PDF (Size: 3707KB) PP. 425-435

DOI: 10.4236/ojg.2014.49033 3,980 Downloads 5,492 Views Citations

Author(s)

Elham Shah Hosseini¹, Afshin Ashja Ardalan², Mohammad Hashem Emami³, Mohammad Hossein Razavi⁴

Affiliation(s)

¹Department of Geology, North Tehran branch, Islamic Azad University, Tehran, Iran.
²Department of Geology, North Tehran Branch, Islamic Azad University, Tehran, Iran.
³Department of Geology, Eslamshahr Branch, Islamic Azad University, Eslamshahr, Iran.
⁴Department of Geology, Faculty of Sciences, Kharazmi University, Tehran, Iran.

ABSTRACT

This paper elucidates the compositional studies on clinopyroxene, plagioclase of basalts to andesitic rocks of Torud area to understand the geotectonic and geothermobarometry conditions. Early Eocene-Oligocene calc-alkaline volcanic rocks are exposed around Torud in the Central Iranian zone. Volcanic rocks consist of basaltic, andesite basalt, Tracyandesite, and andesite. Minerals in the volcanic rocks exhibit degrees of disequilibrium features. Plagioclase as dominant mineral in these rocks generally displays oscillatory zoning. Mineral chemistry studies show that clinopyroxenes in the volcanic rocks are diopside, augite and plotted in medium pressure field. The clinopyroxene composition yields the crystallization temperatures 900°C - 1000°C. The mineral composition indicates that these rocks are formed in a tensional environment.

KEYWORDS

Volcanic Rocks, Mineral Chemistry, Clinopyroxenes, Plagioclase, Torud

Share and Cite:

Hosseini, E. , Ardalan, A. , Emami, M. and Razavi, M. (2014) Mineral Chemistry and Thermobarometry of the Volcanic Rocks in Torud, Iran. Open Journal of Geology, 4, 425-435. doi: 10.4236/ojg.2014.49033.

Cited by

[1]	Petrogenesis of Tarq-Mazdeh volcanic rocks based on clinopyroxene chemistry (South of Natanz, Urumieh Dokhtar volcanic belt)
	2019

[2]	An experimental investigation into the 'fate'of entrained peritectic minerals in I-type granite magmas intruded at below 2kbar.
	2016

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