Volume 34 (2024)
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)
Economic Geology
Petrology, geochemistry and chemical nature of the Goft and Mohammadabad manganese ore host rocks, in the Late Cretaceous volcanic-sedimentary sequence southwest of Sabzevar

Shaghayegh Sadat Hashempour; Sajjad Maghfouri; Ebrahim Rastad

Volume 33, Issue 1 , February 2023, , Pages 179-196

https://doi.org/10.22071/gsj.2022.341490.1996

Abstract
  The Goft and Mohammadabad manganese deposits are located in the southwestern part of Sabzevar, whitin the Late Cretaceous volcano-sedimentary sequences. This sequence is located inside a 100 km long folded structure with northeast-southwest trend. Mohammadabad manganese deposit located in the southeastern ...  Read More

Economic Geology
Deformation, alteration and fluid inclusion studies in the Mirgenaghshineh orogenic gold deposit, Northwest of Sanandaj-Sirjan Zone

Hossein Ali Tajeddin; Ebrahim Rastad; Abdolmajid Yaghoubpour; Mohammad Mohajjel

Volume 32, Issue 4 , December 2022, , Pages 319-336

https://doi.org/10.22071/gsj.2022.232116.1795

Abstract
  The Mirgenaghshineh gold deposit is located 43 km northwest of Saqqez in the northwestern part of the Sanandaj–Sirjan zone. The rocks in the deposit area predominantly consist of Precambrian volcanosedimentary sequences of schist, metasandstone, slate and metaandesite which are intruded by granitoid ...  Read More

Tectonics
Structural analysis of the South Nataz Region, evidence for interaction of the dextral transpression on earlier thrust faults in central Iran

Firouzeh Shavvakhi; Saeed Madanipour; Ebrahim Rastad

Volume 30, Issue 118 , January 2021, , Pages 255-268

https://doi.org/10.22071/gsj.2020.210876.1732

Abstract
  South Natanz Area is structurally located in the western part of the Central Iranian structural zone and central part of the Orumieh-Dokhtar magmatic belt at southwestern termination of the Qom-Zefreh Fault. Our structural data represents older generation of E-W to NW-SE thrust faults as Fasakhod Fault ...  Read More

Economic Geology
Yazdan Lead- Zinc and Barite deposit, an example of SEDEX-Type deposits in the western Central Iran structural zone

Mohammad Jafar Kupayi; Ebrahim Rastad; Saeed Madanipour; Sajjad Maghfouri

Volume 30, Issue 117 , December 2020, , Pages 275-286

https://doi.org/10.22071/gsj.2019.185708.1654

Abstract
  Cretaceous sedimentary sequence in the Yazdan area is consisting of four rock units as, from the old to the new, clastic-carbonate (Kc), carbonate (Kl), Shale and marl (Km) sequences, and Sandy limestone and sandstone (Kls). The Kls unit is host of ore mineralization in the study area and formed from ...  Read More

Economic Geology
Mineralogy, texture and structure and genetic model of Kahak Manto-type copper deposit in the Eocene volcano-sedimentary sequence, south Qom

Zahra Kaboodi; Majid Ghaderi; Ebrahim Rastad

Volume 29, Issue 113 , November 2019, , Pages 145-154

https://doi.org/10.22071/gsj.2018.99677.1273

Abstract
  The Kahak copper deposit occurs in the Eocene volcano-sedimentary sequence of Qom region, Urumieh-Dokhtar magmatic arc. The oldest rock unit in this sequence is a crystal tuff, overlain by tuff, andesite, sandstone, conglomerate, and limestone. Host rocks to the Kahak deposit include andesite and tuff, ...  Read More

Economic Geology
Thermometry and Origin of Mineralizing Fluid at Barika Gold Deposit, East of Sardasht

H Tajeddin; Ebrahim Rastad; Abdolmajid Yaghoubpour; Mohammad Mohajjel; Richard Goldfarb

Volume 28, Issue 111 , May 2019, , Pages 17-28

https://doi.org/10.22071/gsj.2017.77436.1029

Abstract
  Barika gold (and silver)-rich volcanogenic massive sulfide deposit is located 18 km east of Sardasht city in the northwestern of Sanandaj–Sirjan metamorphic Zone. The rocks in the vicinity of the Barika deposit predominantly consist of Cretaceous volcanosedimentary sequences of phyllite, slate, ...  Read More

Economic Geology
Mineralization horizons, stracture and texture, alteration and mineralization stages in the Zn-Pb (Ba) Eastern Haft-Savaran deposit in Malayer-Esfahan metallogenic belt, south of Khomain

Pouria Mahmoodi; Ebrahim Rastad; Abdorrahman Rajabi; Mehran Moradpour

Volume 28, Issue 110 , December 2018, , Pages 3-12

https://doi.org/10.22071/gsj.2017.91866.1192

Abstract
  The Early Cretaceous Eastern Haft-Savaran Zn-Pb (Ba) deposit situated in the Arak mining district and occurred within the extentional back-arc of Malayer-Esfahan basin. Mineralization occurred in two horizons in the Estern Haft-Savaran deposit. First horizon is major horizon that formed within the most ...  Read More

Economic Geology
Mineralogy, geochemistry and genetic processes of supergene non-sulphide ore of the Ab-Bagh Sedimentary-Exhalative (SEDEX-type) Zn-Pb deposit, Sanandaj-Sirjan zone

M. Movahednia; E. Rastad; A. Rajabi; F. Choulet

Volume 26, Issue 103 , June 2017, , Pages 249-264

https://doi.org/10.22071/gsj.2017.46610

Abstract
  The Ab-Bagh Zn-Pb deposit is located in the central part of the Sanandaj-Sirjan zone (SSZ) and at the southeastern part of the Malayer-Esfahan metallogenic belt. This deposit is hosted by Upper Jurassic-Lower Cretaceous sedimentary sequence. Zinc and lead mineralization occurred within two horizons. ...  Read More

Nudeh Volcanogenic Massive Sulfide (VMS) Deposit, A Besshi- Type VMS Deposit, Southwest Sabzevar

S Maghfouri; E Rastad; F Mousivand; Y Lin

Volume 24, Issue 94 , March 2015, , Pages 73-86

https://doi.org/10.22071/gsj.2015.42744

Abstract
  Copper mineralization in Nudeh Cu deposit and Frezy, Garab, Kalateh lala (Nieran) and Chun occurrences, located in southwest of Sabzevar hosted by a Upper Cretaceous volcano-sedimentary sequence formed in a rift environment. The main is host rock of the Nudeh Cu sulfide deposit includes alkali olivine ...  Read More

Vein-type and Stratabound W (Cu-Au) Mineralization in Iran

S Ghaderi; E Rastad; N Rashidnejad-Omran; M Mohajjel

Volume 24, Issue 94 , March 2015, , Pages 305-314

https://doi.org/10.22071/gsj.2015.42949

Abstract
  Tungsten (Cu-Au-Zn) deposits and occurrences in Iran can be divided into two separate categories based on their genesis, tectonic setting, mineral paragenesis and related processes inherent in their formation. The first category contains deposits, which are located in metamorphosed Late Triassic-Middle ...  Read More

Fe-Mn Mineralization in Dolomites Equivalent to Shotori Formation in NE of Dehbid, Southern Sanandaj-Sirjan Zone, Fars Province

M Kazemirad; E Rastad; M Mohajjel

Volume 24, Issue 94 , March 2015, , Pages 369-382

https://doi.org/10.22071/gsj.2015.42968

Abstract
  The Goshti-Heneshk, Goli and Cheshmeh Esi iron-manganese deposits are located in the northeast of Dehdib (Safashahr), 175 km northeast of Shiraz. These deposits are situated in the Heneshk Shear Zone, which is a part of the ComplexDeformationSubzone of the Southern Sanandaj-Sirjan Zone. The oldest outcrops ...  Read More

Volcanic Red Bed Type Copper (-Silver) Mineralization in Keshtmahaki Deposit, Northwest of Safashahr, Southern Sanandaj-Sirjan Zone

M Boveiri Konari; E Rastad; N Rashidnejad-Omran

Volume 24, Issue 93 , December 2014, , Pages 19-36

https://doi.org/10.22071/gsj.2014.43443

Abstract
  Lower Cretaceous volcano-sedimentary sequence in the northwest and southeast of Safashahr (Dehbid) in marginal subzone of southern Sanandaj-Sirjan Zone comprises the Keshtmahaki deposit and few other occurrences of copper (-silver). The oldest rock units in the region are Jurassic shale and sandstone, ...  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

Metamorphism and Deformation Effects on the Barika Gold-Rich Volcanogenic Massive Sulfide Deposit, Northern Sanandaj- Sirjan Zone

E. Rastad; H. Tajedin; A. Yaghubpur; M. Mohajel

Volume 22, Issue 87 , December 2013, , Pages 33-40

https://doi.org/10.22071/gsj.2013.53828

Abstract
  The Barika gold (and silver) rich-massive sulfide deposit is located 18 km east of Sardasht city, north western part of Sanandaj-Sirjan metamorphic zone. Rock units outcropped in this area are metamorphosed volcano-sedimentary rocks in green schist facies, and include association of meta-andesit, meta-tuffite, ...  Read More

Petrogenesis Geochemistry and Role of Deformation on Ore Elements Distribution of Barika Ggold-Rich Massive Sulfide Deposit, East of Sardasht, Northwest of Sanandaj – Sirjan Zone.

H. A. Tajeddin; E. Rastad; A. Yagoubpour; M. Mohajjel

Volume 21, Issue 83 , December 2012, , Pages 141-156

https://doi.org/10.22071/gsj.2012.54536

Abstract
  Barika deposit is the first and only recognized gold (and silver) rich – massive sulfide deposit in Iran which is located at 18 km east of Sardasht city, north western part of Sanandaj-Sirjan metamorphic zone. Rock units outcropped in this area are volcano sedimentary metamorphosed rocks in green ...  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

Ore Facies of Khanjar Pb– Ag (Zn) Carbonate– Hosted Deposit ,Upper Cretaceous Sequence in Central Iran, South Damghan, Iran

B. Mehri; E. Rastad; F. Fayyazi

Volume 19, Issue 75 , January 2010, , Pages 3-12

https://doi.org/10.22071/gsj.2010.55420

Abstract
  The Khanjar Pb– Ag (Zn) deposit is one of the stratabound deposits of Cretaceous age in Central Iran. The ore bodies may be grouped into two main geometric types: 1) Lenses of ore bodies congruent with bedding, 2) Ores as open space filling or with brecciate fabric due to faulting. Both types occur ...  Read More