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Mineral Chemistry Studies and Evidences For Magma Mixing of Bala Zard Basic- Intermediate Volcanic Rocks, Lut Block, Iran

Omid Kheiri Namin1 * , Afshin Ashja Ardalan1 , Mohammad Hosein Razavi2 , Arash Gourabjeripour3 and Abdollah Yazdi4

1 Department of Geology, Faculty of Sciences, Islamic Azad University,North Tehran Branch, Tehran, Iran

2 Department of Geology, Faculty of Sciences, Kharazmi University, Tehran, Iran

3 Department of Geology, Islamic Azad University, Mianeh Branch, East Azerbaijan, Iran

4 Department of Geology, Islamic Azad University, Kahnooj Branch, Kerman, Iran

Corresponding author Email: o.Kheiri@gmail.com

DOI: http://dx.doi.org/10.12944/CWE.10.Special-Issue1.140

Bala Zard volcanic rocks are erupted in the Lut Block in Eastern Iran and exposed about 270 Km north east of Kerman city. The volcanic rocks mainly consist of basalt, andesite, dacite, and rhyodacite. Petrographic studies show that several disequilibrium textures such as sieve texture and oscillatory zoning in plagioclase phenocrysts are present in some of the minerals of BalaZard volcanic rocks. Mineral chemistry studies revealed compositional changes along with the textural changes in minerals from the study area. The observed oscillatory zoning profile for the anorthite content (An) of plagioclase suggests repeated injections of mafic melts (replenishment) and mixing with pre-exiting magma and forming rocks with basaltic-andesite composition. The chemical composition of clinopyroxene phenocrysts exhibit calc-alkaline affinity and suggest that Bala Zard volcanic rocks formed in a subduction related volcanic arc.


Lut Block; Bala Zard; Mineral Chemistry; Sieve Texture; Oscillatory Zoning; Magma Mixing; Iran

Copy the following to cite this article:

Namin O. K, Ardalan A. A, Razavi M. H, Gourabjeripour A, Yazdi A. Mineral Chemistry Studies and Evidences For Magma Mixing of Bala Zard Basic- Intermediate Volcanic Rocks, Lut Block, Iran. Special Issue of Curr World Environ 2015;10(Special Issue May 2015). DOI:http://dx.doi.org/10.12944/CWE.10.Special-Issue1.140

Copy the following to cite this URL:

Namin O. K, Ardalan A. A, Razavi M. H, Gourabjeripour A, Yazdi A. Mineral Chemistry Studies and Evidences For Magma Mixing of Bala Zard Basic- Intermediate Volcanic Rocks, Lut Block, Iran. Special Issue of Curr World Environ 2015;10(Special Issue May 2015). Available from: http://www.cwejournal.org?p=791/

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