Volume 33 (2023)
Volume 32 (2022)
Volume 31 (2021)
Volume 30 (2020)
Volume 29 (2020)
Volume 28 (2019)
Volume 27 (2018)
Volume 26 (2017)
Volume 25 (2016)
Volume 24 (2015)
Volume 23 (2014)
Volume 22 (2013)
Volume 21 (2012)
Volume 20 (2011)
Volume 19 (2010)
Volume 18 (2009)
Volume 17 (2008)
Volume 16 (2007)
Tectonic environment and petrogenesis of igneous rocks of Tashvir area, Tarom mountains, northwest of Iran

Reza Jamal Omidi; Saeid Hakimi Asiabar; Shahrooz Haghnazar; Mansour Vosoghi Abedini

Volume 32, Issue 2 , July 2022, , Pages 105-120


  Tarom mountains are located at the southwestern end of the Alborz mountain range with an approximate northwest-southeast direction. Tashvir region is a part of the northern margin of the Tarom mountains. Most igneous rocks in this area include basalt, andesitic basalt, and interlayers of tuff. Enrichment ...  Read More

Tectono-magmatic setting of the Albite-bearing metasomatite of the Ghoghart magnetite-apatite ore deposits, Northeast Bafq, Central Iran

kiamars hosseini; Majid Shahpasandzadeh

Volume 30, Issue 118 , January 2021, , Pages 81-94


  The Late Neoproterozoic-Early Cambrian albite-bearing metasomatite, rhyolites and rhyodacites predominantly constitute the host rocks of the Choghart magnetite-apatite deposit in Central Iran. The geologic evidences show three types of albites in the host albite-bearing metasomatite. The performed mineralogical ...  Read More

Tectonic Provenance of Kahar Formation (Late Neoproterozoic) Using Modal and Heavy Mineral Analyses in Sandstones, Type Locality, Kahar Mountain, Central Alborz

N Etemad-Saeed; M. H Adabi; A. Sadeghi; M. Hosseini- Barzi

Volume 22, Issue 88 , December 2013, , Pages 3-12


  This work is focused on tectonic provenance of the Late Neoproterozoic Kahar Formation in the northern Iran. KaharMountain (type locality) provides valuable information on tectonic events during this time. The Kahar Formation in this area is a well preserved sedimentary sequence and consists of about ...  Read More

Structure of Fariman and Dareh Anjir Complexes and their Significance in Understanding of Palaeotethys Suture Zone

M Ramazani; M. R. Ghassemi; A. Zanchi; M. R. Sheikholeslami

Volume 22, Issue 87 , December 2013, , Pages 133-142


  The Dare Anjir and Fariman complexes in NE of Iran are considered as remnants. These complexes considering were located close to Palaeotethys suture zone, and thus they record its structural evolution. considering structural and petrological evidences and against previous opinions that considered Fariman ...  Read More