Author(s)

Abdollah Yazdi¹, Afshin Ashja-Ardalan^1*, Mohammad-Hashem Emami², Rahim Dabiri³, Mohammad Foudazi²

¹Department of Geology, North Tehran Branch, Islamic Azad University, Tehran, Iran.
²Department of Geology, Islamshahr Branch, Islamic Azad University, Tehran, Iran.
³Department of Geology, Mashhad Branch, Islamic Azad University, Mashhad, Iran.

In this paper, tectonic and geothermobarometric environments have been studied with respect to the combination of pyroxene, olivine and plagioclase in volcanic rocks in the southeast of Bam. The combination of volcanic rocks in the region consists of olivine basalt, basalt, alkaline basalt, andesite, trachyandesite and pyroxene andesite. This combination is the result of the processes of crystallization and sometimes contamination. Plagioclase, clinopyroxene, olivine, and amphibole constitute the major minerals (rock forming minerals) in these rocks. Porphyritic to mega-porphyritic textures with microlithic, glumero-porphyritic and amigdaluidal matrix are observed. Based on the thermometric calculations, plagioclase, pyroxene, and olivine minerals and the rocks of this region are crystallized at a pressure of 1.5 to 7 kb and temperatures ranging from about 700°C to 1250°C.

Plagioclase, Pyroxene, Geochemistry, Thermo-Barometry, Volcanic Rocks, Bam

Yazdi, A. , Ashja-Ardalan, A. , Emami, M. , Dabiri, R. and Foudazi, M. (2017) Chemistry of Minerals and Geothermobarometry of Volcanic Rocks in the Region Located in Southeast of Bam, Kerman Province. Open Journal of Geology, 7, 1644-1653. doi: 10.4236/ojg.2017.711110.