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)
Application of clinopyroxene in petrogenesis of volcanic rocks at north of East Alloun Abad village (East of Isfahan)

Z. Nasr Esfahani; M. H. Emami; S. J. Sheikhzakariaee; S. H. Tabatabaei

Volume 27, Issue 106 , March 2018, , Pages 35-44

https://doi.org/10.22071/gsj.2018.58319

Abstract
  The study area is located in the Isfahan province and at the north of East Alloun Abad village. This area is a part of Urmia - Dokhtar belt in Central Iran.  A large part of the area is formed from Eocene igneous rocks. These rocks include basaltic andesite and pyroclastic rocks of ignimbrite and ...  Read More

geology, petrography, mineralization and fluid inclusion studies in the mesgarabad exploration area, southeast of tehran

M Norouzi; M. Lotfi; M. H. Emami; H. Jamali; A. Abedini

Volume 27, Issue 106 , March 2018, , Pages 243-256

https://doi.org/10.22071/gsj.2018.58253

Abstract
  Mesgarabad area is located in ~10 km southeast of Tehran, the Central- Alborz structural zone (CASZ) of Iran. The rock units exposed in the area consist of Eocene volcanics, volcano-sedimentary and sedimentary rocks intruded by post upper Eocene granodiorite to quartz monzo-diorite. These subvolcanic ...  Read More

Ore facies, alteration zoning and physico-chemical conditions of formation of the Bavanat (Jian) Besshi-type Cu-Zn-Ag volcanogenic massive sulfide deposit, Fars province

F Mousivand; E Rastad; M.H Emami; J Peter; M Solomon

Volume 25, Issue 99 , June 2016, , Pages 61-74

https://doi.org/10.22071/gsj.2016.40771

Abstract
  The Bavanat (Jian) pelitic-mafic- / Besshi-type Cu-Zn-Ag volcanogenic massive sulfide deposit locates in the Bavanat area, South Sanandaj-Sirjan zone. Mineralization occurs as two stratigraphic ore horizons discontinuously within the Surian metamorphosed volcano-sedimentary complex through more than ...  Read More

Petrology, Geochemistry and Geodynamic Setting of Gabbroic Subvolcanics in the West of Shafarud, Talesh Mountains

M Keshavarz Hedayati; M.H Emami; A.R Karimi Bavand Pour; Kh Bahar Firouzi

Volume 24, Issue 95 , June 2015, , Pages 155-164

https://doi.org/10.22071/gsj.2015.42425

Abstract
  The microgabbroic sills and dikes have injected into the late Cretaceous limestones along Shafarud. Based on the textural and mineralogical features, they are divided into four groups: micro olivine gabbro, microgabbro, microgabbro-diorite, and diabase. The main minerals in these rocks are olivine, clinopyroxene, ...  Read More

Petrology and U-Pb Zircon Dating of Marfion Intrusive Complex, West of Kashan

M Honarmand; N Rashidnejad Omran; M.H Emami; Gh Nabatian

Volume 24, Issue 94 , March 2015, , Pages 3-16

https://doi.org/10.22071/gsj.2015.42736

Abstract
  The Marfion Granitoid Complex is a part of Cenozoic plutonism, which located in the central part of the Urumieh–Dokhtar Magmatic Belt. This complex consists of four main intrusives,  including the Mozvash micro-dioritic to micro-monzodioritic intrusive, which scattered as separate outcrops ...  Read More

Petrography, Geochemistry and Origin of Garnet-Bearing Rhyolites of Kahak Area, SE Qom, Iran

N. Askari; M. H. Emami; M. Kheirkhah

Volume 24, Issue 94 , March 2015, , Pages 17-26

https://doi.org/10.22071/gsj.2014.53661

Abstract
  The post Eocene rhyolitic rocks of the Kahak area are located in SE of the Qom quadrangle map in scale of 1:250,000 and in the Kahak sheet in scale of 1:100,000. This area is situated at the marginal part of SW Central Iran, in the Urmia- Dokhtar magmatic belt. The rhyolitic rocks outcrop as endogenous ...  Read More

Geology and Mineralogy of the Pegmatites of South Mashhad (NE Iran); With Especial Emphasis on the Lithium Mineralization Therein

P Didar; N Nezafati; M.H Emami; A Solgi

Volume 24, Issue 94 , March 2015, , Pages 209-219

https://doi.org/10.22071/gsj.2015.42916

Abstract
  In the south of Mashhad city, situated in the Khorasan-eRazaviProvince, NE Iran, there are a number of granitic intrusive bodies intersected by several pegmatite veins. These granitic bodies are of orogenic (collisional), peraluminous, S- type and host the pegmatites in an area of 40km2. This paper presents ...  Read More

Petrology of Heiran Area Submarine Lavas in Northeast of Ardabil, A Case Study of Caspian Sea Southern Margin Geo-Suture

Y Vasigh; A Darvishzadeh; M Vosoughi Abedini; M.H Emami

Volume 24, Issue 93 , December 2014, , Pages 93-104

https://doi.org/10.22071/gsj.2014.43536

Abstract
  Heiran area is located in northwest of Ardabil and southwest of Caspian Sea. Field evidences indicate submarine volcanic activities in this area. The rocks in this area are of basaltic composition. The outcrops of pillow lavas, prisms, dykes and lava flows in different points are evidences showing the ...  Read More

The Investigation of Alteration Zones and Magma Mixing In Kahang Exploration Area

M Farmahini Farahani; A Khakzad; H Asadi Harooni; M.H Emami

Volume 24, Issue 93 , December 2014, , Pages 183-195

https://doi.org/10.22071/gsj.2014.43558

Abstract
  Kahang copper and molybdenum mine is located in Esfahan province and 10 Km far from the east of Zefreh town that is on Urumieh-Dokhtar volcanoplutonic belt. The Kahang region is an alteration and breccia zone. Generally, hydrothermal fluids have affected more than % 90 of rocks of this region. These ...  Read More

Petrogenesis of Akapol granitoidic intrusion Kelardasht area

M.A Sajadi Nasab; M Vosoughi Abedini; M.H Emami; M Ghorbani

Volume 23, Issue 91 , June 2014, , Pages 215-229

https://doi.org/10.22071/gsj.2014.43824

Abstract
  The studied granitoidic intrusion with about 50 km2 area is located in the SW of Kelardasht, one of the regions in MazandaranProvince. It is one of the pluton masses of the Central Alborz structural zone. The mass has an age between 54±4 and 56±3 million years (late Paleocene to early Eocene) ...  Read More

Formation of Various Types of Volcanogenic Massive Sulfide (VMS) Deposits and Its Relationship With Tectono-Magmatic Evolution in the Sanandaj-Sirjan Zone

F Mousivand; E Rastad; M.H Emami; J.M Peter

Volume 23, Issue 90 , March 2014, , Pages 11-21

https://doi.org/10.22071/gsj.2014.43901

Abstract
  Various types of volcanogenic massive sulfide (VMS) deposits occurred within the northern and southern parts of the Sanandaj-Sirjan zone (SSZ). The most important VMS deposits of the south SSZ includes the Bavanat Cu-Zn-Ag (pelitic mafic- or Besshi-type), Sargaz Cu-Zn (bimodal mafic- or Noranda-type), ...  Read More

Petrography of Gelmandeh Metamorphic Complex with Reference to Microscopic Deformation

A Gourabjeri; M.H Emami

Volume 23, Issue 90 , March 2014, , Pages 151-164

https://doi.org/10.22071/gsj.2014.43979

Abstract
  Gelmandeh Massive is located north-east of Saghand, in Yazd province. From tectonics point of view it belongs to Central Iran, the Kalmard_Posht-e-Badam Block. The metamorphic complex comprises amphibolites, marble, schist, quartz- feldspatic gneisses. The amphibolites are of three types. Namly: Hornblendite ...  Read More

Whole-Rock and Sr-Nd Isotope Geochemistry of Volcanic Host Rocks of the Chah Zard Ag-Au Deposit, Urumieh-Dokhtar Belt

H Kouhestani; M.H Ghaderi; M.H Emami; S Meffre; V Kamenetsky; J McPhie; Kh Zaw

Volume 23, Issue 90 , March 2014, , Pages 185-196

https://doi.org/10.22071/gsj.2014.43986

Abstract
  The Chah Zard Ag-Au deposit, a typical breccia-hosted low- to intermediate-sulfidation epithermal system, is located within late Miocene andesitic to rhyolitic volcanic complex in the central part of the Urumieh-Dokhtar magmatic belt. The orebodies are emplaced in breccia bodies dominantly hosted by ...  Read More

Chah Zard Deposit: Breccia-Hosted Epithermal Ag-Au Mineralization in the Urumieh-Dokhtar Belt

Majid Ghaderi; H. Kouhestani; M. H. Emami; K. Zaw

Volume 22, Issue 87 , December 2013, , Pages 9-24

https://doi.org/10.22071/gsj.2013.53826

Abstract
  The breccia-hosted epithermal Ag-Au deposit of Chah Zard is located within an andesitic to rhyolitic volcanic complex in the central part of the Urumieh-Dokhtar magmatic belt. At this location, magmatic and hydrothermal activity was associated with local extensional tectonics, formed in the Dehshir-Baft ...  Read More

Geology, Mineralography, Geochemistry and Genesis of Boznein Mn Mine, Ardestan (Esfahan Province)

M. Lotfi; S.F Sadjadi AleHashem; M. H. Emami

Volume 22, Issue 88 , December 2013, , Pages 75-88

https://doi.org/10.22071/gsj.2017.53668

Abstract
  Boznein manganese deposit is located in 25 km south-southwest of Ardestan, part of Urmiyeh-Dokhtar magmatic belt. The main units in the studied area are volcanic-pyroclastic sequences & intrusive bodies of middle Eocene-lower Oligocene. Porphyroid rhyolitic dome (upper Eocene-lower Oligocene) is ...  Read More

Petrography, Geochemistry, Mineralogy, Fluid Inclusions and Mineralization Study of Vorezg- Qayen Copper Deposit

V. Alizadeh; M. Momenzadeh; M. H. Emami

Volume 22, Issue 86 , December 2012, , Pages 47-58

https://doi.org/10.22071/gsj.2012.54056

Abstract
  Based on Qayen 1:100000 geological map, the copper mineralization of Vorezg in volcanic rocks is attributed to Paleocene-Lower Eocene. Submarine volcanic rocks of the study area are found in two forms of lava and pyroclastics. Based on field and laboratory investigations, the outcropped rocks in Vorezg ...  Read More

Structural Mechanisms of the Quaternary Basalts in Bijar area, west of Iran

G. Maleki; A. Saeedi; M.H. Emami; M. Kheirkhah

Volume 21, Issue 83 , December 2012, , Pages 87-96

https://doi.org/10.22071/gsj.2012.54523

Abstract
  In Sanandaj- Sirjan zone a vast outcrops of volcanic  rocks, which founded as high terraces, are covered  the Pre-Quaternany  rocks. The volcanic rocks are appeared in different shapes and morphological features. Based on the Zagros geodynamical evolution, mentioned rocks assumed  ...  Read More

Bathurst-type Zn-Pb-Cu Volcanogenic Massive Sulfide Mineralization in the Chahgaz Area, South of Shahre Babak, South Sanandaj-Sirjan Zone

F. Mousivand; E. Rastad; M. H. Emami; J. M. Peter; M. Solomon

Volume 21, Issue 82 , December 2011, , Pages 151-164

https://doi.org/10.22071/gsj.2011.54451

Abstract
  Zn-Pb-Cu mineralization in the Chahgaz area, located 60 km south of Shahre Babak, occurs within a Middle Jurassic metamorphosed bimodal volcano-sedimentary sequence in the South Sanandaj-Sirjan zone. Mineralization occurs associated with exhalites within units 1and 2 of the host sequence as numerous ...  Read More

The Origin and Evolution of Quaternary Basaltic Magmas in NW Azerbaijan (Burlan to Gonbad) using Sr- Nd Studies

Monireh Kheirkhah; M. H. Emami

Volume 19, Issue 76 , January 2010, , Pages 113-118

https://doi.org/10.22071/gsj.2010.55668

Abstract
  At the farthest end of NW Iran, the Quaternary basalts crop out in Azerbaijan province, located in Alpine – Himalaya belt and highly pleatue of Iran-Turkish, eastern Anatolian. The Quaternary volcanic units of NW Azerbaijan cover a broad compositional range from basalts, basaltic andesite, trachy ...  Read More

Petrography, Geochemistry and Emplacement Mechanism of Hashtsar Ring Complex

Gholamreza Tajbakhsh; M. H. Emami; H. Moine Vaziri; N. Rashidnejad Omran

Volume 19, Issue 73 , January 2009, , Pages 123-132

https://doi.org/10.22071/gsj.2010.57214

Abstract
  Hashtsar ultramafic – mafic intrusive complex is located at about 20 km east of the Kaleybar in the eastern AzerbaijanProvince. This alkaline ring complex is formed by the penetrative of undersaturated and oversaturated different magmatic phases with Late Eocene to Oligocene – Miocene ages. ...  Read More

Petrology of Quaternary Basalts of Tabas (East of Iran)

S. M. Hashemi; M. Emami; M. Vossoughi Abedini; M. Pourmoafi; M. Ghorbani

Volume 17, Issue 68 , February 2008, , Pages 26-39

https://doi.org/10.22071/gsj.2009.57836

Abstract
  In southeastern Tabas there is a 400 square kilometer area of Quaternary basalts, which is geologically located in Lut zone. According to petrographic studies and EMPA analysis, the textures of these rocks are generally porphyric and some times aphyric. The phenocrysts of these basalts are generally ...  Read More

Petrography, Geochemistry, Genesis and Tectonic Setting of Bibi Maryam Granitoid (Afzal Abad-Nehbandan)

S. S. Mohammadi; M. Vossoughi Abedini; M. Pourmoafi; M. H. Emami; M. M. Khatib

Volume 16, Issue 63 , March 2007, , Pages 60-71

https://doi.org/10.22071/gsj.2008.58440

Abstract
  Bibi Maryam Granitoid body with 5 km2 exposure area is located in the east Iranian ophiolite mélange belt in Sistan suture zone. This intrusive body consists of tonalite- quartzdiorite and granodiorite. The main mafic minerals are hornblende and biotite in quartzdiorite-tonalite. Existence of ...  Read More