Few More than 5 dacite to andesite volcanic masses with Mio-Pliocene age are exposed to older volcanic rocksat the south and east of the Mozahem volcano, in south-east of Urumieh- Dokhtar magmatic belt, north-east of Shahre-Babak. These rocks show hyaloporphyritic- trachytic texture and consist of pPhenocrysts of plagioclase, amphiboles and biotites. Based on geochemical data and multi elements patterns, these rocks are medium to high K calc-alkaline suite and they show LILE and LREE enriched normalized multi-element patterns, and negative Nb, Ti and Ta anomalies. Chondrite normalized REE patterns display a steep decrease from LREE to HREE without any Eu anomaly. They have higher SiO2 and Sr contents and Sr/Y and La/Yb ratios and low MgO, Y and Yb contents than the normal calc-alkaline volcanic rocks. These volcanic rocks are formed in the a subduction zone in an active margin, and showing full complete of HSA(high SiO2 adakites) characteristics. HREE and Y depleted patterns suggest the existence of garnet and amphibole as a residue in the source. The source of these rocks was probably amphibole-eclogite or garnet-amphibolite possibly generated during subduction or slab break of the Neo-Tethyan oceanic slab beneath the Central Iran microplate in Neogene.
Ghadami, G., Poosti, M., & Babai, F. (2016). Petrogenesis of Mio-Peliocene Dacite-Andesite Volcanism in SE of Urumieh-Dokhtar Magmatic Belt, (NE Shahr-e-Babak). Scientific Quarterly Journal of Geosciences, 25(97), 37-48. https://doi.org/10.22071/gsj.2015.41350
MLA
Ghadami, G., Poosti, M., & Babai, F. "Petrogenesis of Mio-Peliocene Dacite-Andesite Volcanism in SE of Urumieh-Dokhtar Magmatic Belt, (NE Shahr-e-Babak)", Scientific Quarterly Journal of Geosciences, 25, 97, 2016, 37-48. doi: 10.22071/gsj.2015.41350
HARVARD
Ghadami G., Poosti M., Babai F. (2016). 'Petrogenesis of Mio-Peliocene Dacite-Andesite Volcanism in SE of Urumieh-Dokhtar Magmatic Belt, (NE Shahr-e-Babak)', Scientific Quarterly Journal of Geosciences, 25(97), pp. 37-48. doi: 10.22071/gsj.2015.41350
CHICAGO
G. Ghadami, M. Poosti & F. Babai, "Petrogenesis of Mio-Peliocene Dacite-Andesite Volcanism in SE of Urumieh-Dokhtar Magmatic Belt, (NE Shahr-e-Babak)," Scientific Quarterly Journal of Geosciences, 25 97 (2016): 37-48, doi: 10.22071/gsj.2015.41350
VANCOUVER
Ghadami G., Poosti M., Babai F. Petrogenesis of Mio-Peliocene Dacite-Andesite Volcanism in SE of Urumieh-Dokhtar Magmatic Belt, (NE Shahr-e-Babak). Geoscience. 2016;25(97):37-48 (In Persian). doi: 10.22071/gsj.2015.41350