Study of Petrogenesis and Tectonomagmatic Environments of Eocene Calc-Alkaline Volcanic Units in South and Southeast of Beroni Village in Southwest Ardestan (Isfahan)
Sayyed Hossein Roshan1 * and Ali Khan Nasr Esfahani2
1
Department of Geology,
Isfahan (Khorasgan) Branch,
Islamic Azad University,
Isfahan,
Iran
2
Department of Geology,
Isfahan (Khorasgan) Branch,
Islamic Azad University,
Isfahan,
Iran
http://dx.doi.org/10.12944/CWE.10.Special-Issue1.86
The study area is located in south and southeast of Beroni Village. It contains volcanic rocks including andesitic-basaltic, pyroxene-bearing andesite, andesite, dacite, rhyodacite, rhyolites and Eocene-Oligocene ignimbrites. The volcanic rocks are cut by an intrusive mass with great spreading in the region. According to lithological studies, the calc-alkaline magmas in continental margin arcs are comprised of mantle and fluid crust. The basic elements in the volcanic rocks were studied in terms of petrological indices. According to the results, the metaluminous rocks underwent crustal contamination. Due to chemical reactions between the hydrothermal solution and volcanic host rocks, hydrothermal solutions in volcanic rocks penetrate the surrounding silica rocks and thus some elements such as zinc and barium diffuse in the rocks. In addition, calcium, magnesium and iron have been drawn inwards from the surrounding rocks causing lateral segregation.
Copy the following to cite this article:
Roshan S. H, Esfahani A. K. N. Study of Petrogenesis and Tectonomagmatic Environments of Eocene Calc-Alkaline Volcanic Units in South and Southeast of Beroni Village in Southwest Ardestan (Isfahan). Special Issue of Curr World Environ 2015;10(Special Issue May 2015). DOI:http://dx.doi.org/10.12944/CWE.10.Special-Issue1.86
Copy the following to cite this URL:
Roshan S. H, Esfahani A. K. N. Study of Petrogenesis and Tectonomagmatic Environments of Eocene Calc-Alkaline Volcanic Units in South and Southeast of Beroni Village in Southwest Ardestan (Isfahan). Special Issue of Curr World Environ 2015;10(Special Issue May 2015).
Available from: http://cwejournal.org?p=684/
