Volume 13 (2022)
Volume 12 (2021)
Volume 11 (2020)
Volume 10 (2019)
Volume 9 (2018)
Volume 8 (2017)
Volume 7 (2016)
Volume 6 (2015)
Volume 5 (2014)
Volume 4 (2013)
Volume 3 (2012)
Volume 2 (2011)
Volume 1 (2010)
Author = Ghasemi, Habibollah
Number of Articles: 11
Mineral chemistry and termometry of the high-Mg ultramafic lava flows (Komatiite), NE Iran: evidence of plume-arc interaction in the Upper Paleozoic Mashhad-Fariman subduction zone
Volume 10, Issue 3 , December 2020, , Pages 25-52
Abstract
In the northeast of Iran, there are some outcrops of high-Mg ultramafic volcanic rocks. These rocks have been interpreted as an ideal ophiolite sequence related to the closure of Paleo-Tethys. ... Read More
Whole-rock Geochemistry and Mineral Chemistry of the Late Cretaceous Dacites in SW Sabzevar: constrain on their origin and tectonic setting
Volume 9, Issue 3 , December 2018, , Pages 79-100
Abstract
A thick sequence of Upper Cretaceous volcano-sedimentary rocks are cropped out on the northern edge of Central Iran, southwest of Sabzevar. The volcanic rocks are dacite/rhyolite and ... Read More
The role of crustal contamination and differentiation in the formation of the Eocene volcanic rocks in Jirande area (Northwest of Qazvin)
Volume 9, Issue 1 , June 2018, , Pages 71-90
Abstract
The Eocene volcanic rocks in Jirande area are dominated by basalt, andesite, trachyt and trachyandesite, which range from basic to intermediate rocks. Plagioclase as major mineral in ... Read More
Determination of emplacement mechanism of Zafarghand granitoid Pluton (Southeast of Ardestan) by using anisotropy of magnetic susceptibility method (AMS)
Volume 8, Issue 29 , June 2017, , Pages 109-134
Abstract
Zafarghand granitoid pluton with compositional range from gabbro to granite and early to middle Miocene age cropped out about 35 km of SE Ardestan. This pluton intrudedthe Eocene ... Read More
Petrogenesis of low Silica Adakitic domes of Sahl (South of Shahrood, southeast of Semnan Province)
Volume 7, Issue 28 , February 2017, , Pages 95-108
Abstract
Sahl area, in the south of Shahrood, is a part of the northern portion of the Central Iran Structural Zone. The area is dominated by a thick sequence of the Paleocene to the middle ... Read More
Mineral chemistry, thermobarometry and petrogenesis of Band-e-Hezarchah dike swarms (southeast of Shahrood)
Volume 7, Issue 25 , April 2016, , Pages 81-96
Abstract
The Band-e-Hezarchah dyke swarms is located in the northern margin of Central Iran structural zone. These diabase dyke swarms have crosscut the late Neoproterozoic – early Cambrian ... Read More
U-Pb age dating and determination of source region composition of post-ophiolite adakitic domes of Sabzevar
Volume 6, Issue 23 , October 2015, , Pages 121-138
Abstract
The post-ophiolite igneous rocks with dacite/rhyolite composition outcropped in the ophiolitic complex of Sabzevar zone. The calc-alkaline and high silica adakitic nature of these rocks ... Read More
Petrology, thermobarometry and U-Pb dating on the rocks of Delbar complex, Biarjmand area (southeast of Shahrood)
Volume 6, Issue 21 , April 2015, , Pages 55-82
Abstract
The Delbar metamorphic complex is located 130 km southeast of Shahrood (Biarjmand area) in the northern margin of the Central Iran. This complex consists of four groups include metapelitic, ... Read More
Ordovician-Devonian magmatism in the north of Shahrood: implication for long lived rifting of Paleotethys in eastern Alborz
Volume 5, Issue 18 , November 2014, , Pages 105-122
Abstract
One of the characteristics of the Ordovician to the Devonian rock units in the north of Shahrood is the presence of high volumes of igneous rocks with basaltic composition as dyke and ... Read More
Petrology and geochemistry of the Sabzevar post-ophiolitic high silica adakitic rocks
Volume 5, Issue 17 , April 2014, , Pages 51-68
Abstract
Some high silica adakitic domes with rhyolite, dacite, trachy-dacite, trachy-andesite and andesite compositions belonging to upper Eocene-Pliocene, trending W-NW, intruded in to the ... Read More
Petrogenesis of the lower Paleozoic igneous rocks, south of Bahabad (Bafq, Central Iran): Implication for Rifting
Volume 1, Issue 4 , March 2011, , Pages 45-64