Volume 31 (2021)
Issue 3
Volume 31, Issue 3, Serial Number 121, Autumn, 2021
Issue 2
Volume 31, Issue 2, Serial Number 120, Summer 2021
Issue 1
Volume 31, Issue 1, Serial Number 121, Spring, 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)
Original Research Paper Exploration and Mining
1. Evaluation of rotary drilling rate in limestones based on brittleness indices

Amin Jamshidi

Volume 31, Issue 3 , Autumn 2021, Pages 1-8

http://dx.doi.org/10.22071/gsj.2021.237778.1813

Abstract
  Accurate estimation of the rotary drilling rate of the rock can save time and cost on exploration operations of the geotechnical projects such as dams, tunnels, oil and gas wells and building stone mines. In this study, the rotary drilling rate in limestone is estimated based on brittleness indices. ...  Read More

Original Research Paper Tectonics
2. Estimated amount of shortening in Zagros crushed zone and crushed area based on transverse cutting equilibrium

Rojan Hemati; Manouchehr Ghorashi; Ali Solgi; Abdollah Saidi

Volume 31, Issue 3 , Autumn 2021, Pages 9-16

http://dx.doi.org/10.22071/gsj.2019.97421.1249

Abstract
  The Zagros suture zone is one of Key regions. Continent - Continent collision between Arabian plate and Iranian Block. This region is coincided by High Zagros and Zagros Simply Fold Zones in Western side and in other side is the Sanandaj- Sirjan Zone. The region of this research in situated in Northern ...  Read More

Original Research Paper Petrology
3. Geochemistry and Petrogensis of Mafic Dykes of Zarrin District, NE Ardekan, Central Iran

Nasim Askari; reza Zarei Sahamieh; Jafar Omrani; Mohamad Heshem Emami; C., Vaccaro; J. F. Santos

Volume 31, Issue 3 , Autumn 2021, Pages 17-28

http://dx.doi.org/10.22071/gsj.2021.242619.1829

Abstract
  Zarrin Mafic dikes, which outcrop in the Western Yazd block, Central Iran, trending NW–SE, emplaced into the Zarrin granitoid. They are sub-alkaline gabbro; characterized by intergranular and mylonitic foliated texture. Geochemical data reveal the Zarrin mafic dikes are from the partial melting ...  Read More

Original Research Paper Stratigraphy and Palaeontology
4. Biostratigraphy of Qom Formation planktonic foraminifera in the North of Khoy, Western Azarbaijan province (Sanandaj–Sirjan fore-arc basin)

Narges Ghader; Ali Asghar Ciabeghodsi; Mir Amir Salahi; Mohammad sadegh Zangeneh

Volume 31, Issue 3 , Autumn 2021, Pages 29-38

http://dx.doi.org/10.22071/gsj.2021.147198.1529

Abstract
  In the present study, In order to study of the planktonic foraminiferal biostratigraphy of Qom Formation in north of Khoy city, West Azarbayjan province (Sanandaj-Sirjan fore-arc basin), stratigraphic section of Sagatlu was selected and sampled. Thickness of Sagatlu section 216 meters was measured. Lithology ...  Read More

Methodologies Economic Geology
5. The Exigency and How of Artisanal and Small-Scale Mining Classification

Reza ShakorShahabi; Ali Nouri Qarahasanlou; Seyed Reza Azimi; Adel Mottahedi

Volume 31, Issue 3 , Autumn 2021, Pages 39-48

http://dx.doi.org/10.22071/gsj.2021.251328.1851

Abstract
  Despite the undeniable contribution of small-scale and artisanal mines (ASMs) in the mining industry and small-scale enterprises (SMEs), no clear and comprehensive definition has been provided. Each country and governorate have defined this sector. However, ASMs are entirely different from large-scale ...  Read More

Original Research Paper Petrology
6. Petrology and geochemistry of Oligocene rhyolite lavas, from south of Qezel Ozan River: post- collision acidic volcanism

Tahereh Parsa; Monireh Kheirkhah; Mir Ali asghar Mokhtari

Volume 31, Issue 3 , Autumn 2021, Pages 49-60

http://dx.doi.org/10.22071/gsj.2021.229547.1788

Abstract
  Cenozoic acidic volcanic rocks at the south of Qezel Ozan River are located within the Western Alborz-Azarbaijan magmatic zone and northern part of the Iranian-Turkish Plateau. The Oligocene acidic lavas in north part of Zanjan show rhyolitic to dacitic composition.  Hyaloporphyritic to hyalomicrolithic ...  Read More

Original Research Paper Remote Sensing
7. Petrography, Geochemistry and Tectonic setting of volcanic rocks in Chomalu polymetallic deposit (North-West of Zanjan)

Mahya Nazarian; Mohammad Lotfi; Arash Gourabjeripour; Majid Ghasemi Siani

Volume 31, Issue 3 , Autumn 2021, Pages 61-72

http://dx.doi.org/10.22071/gsj.2021.233801.1799

Abstract
  The Chomalu Polymetallic deposit is located in western part of Alborz magmatic belt (Alborz-Azarbaijan) and central part of Tarom-Hashtjin metallogenic province. Eocene volcanic settings in the Chomalu deposit consist of basic rocks (olivinebasalt), intermediate (andesite basalt, andesite to trachyandesite) ...  Read More

Original Research Paper Tectonics
8. Structural study of Strait of Hormuz by using of 3D seismic data

Nayyer Bayeste Hasti; Hosein Motamedi; Mahmoud Almasian

Volume 31, Issue 3 , Autumn 2021, Pages 73-82

http://dx.doi.org/10.22071/gsj.2021.242534.1828

Abstract
  This study has focused on the result of seismic data. The first stage of basin formation is the opening of Neo- Tethys Sea which is Simultaneous with Dashtak, Kangan and Khaneh kat Formation and after that on the early to middle Triassic sediments an unconformity that can be named as an expansion of ...  Read More

Original Research Paper Sedimentology
9. Development of the Deltaic depositional system (Miocene) in the South Caspian Basin

Mahmoud sharafi; Arsalan Zeinalzadeh; Aram Bayet-Goll; Bijan Biranvand; Mehran Moradpour; Farid Taati

Volume 31, Issue 3 , Autumn 2021, Pages 83-94

http://dx.doi.org/10.22071/gsj.2021.246219.1837

Abstract
  Miocene siliciclastic sediments with 338m thick are studied in the southern Neka of Northern Alborz flank. Detailed sedimentology study allows recognition four facies associations consist of delta plain, distributary channel, delta front and pro-delta. Delta plain and tidal flat include heterolithic ...  Read More

Original Research Paper Petrology
10. Geothermobarometry of volcanic rocks from N Torud, NE Iran

Najla Saki; Ghasem Ghorbani

Volume 31, Issue 3 , Autumn 2021, Pages 95-108

http://dx.doi.org/10.22071/gsj.2021.243475.1831

Abstract
  The study area is located in the N Turood, S Shahrood, and NE of Central Iran structural zone. Many basaltic dikes in this area intruded into the Eocene volcanic rocks and they also contain many gabbroic enclaves. Plagioclase (labradorite, bytownite-anorthite), amphibole (calcic, pargasite- magnesiohastingsite), ...  Read More

Original Research Paper Hydrology
11. Evaluation of artificial neural network and fuzzy logic for mapping landslide sensitivity in Hablehroud watershed area

Elham EbrahimZadeh; Ebrahim Rahimi; Vahid Gagheri

Volume 31, Issue 3 , Autumn 2021, Pages 109-124

http://dx.doi.org/10.22071/gsj.2021.248995.1845

Abstract
  Identifying landslide-prone areas provides a basis for slope-stabilization and mitigation programs. In Hablehroud watershed, artificial neural network and fuzzy logic (FL) as one of the methods of multicriteria-decision analysis based on ArcGIS were used in the scientific evaluation of landslide-prone ...  Read More

Original Research Paper Stratigraphy and Palaeontology
12. Lithostratigraphy and biostratigraphy of Mobark Formation (Lower Carboniferous) based on brachiopoda in Talou area (Northwest Damghan)

Hamideh Noroozpour

Volume 31, Issue 3 , Autumn 2021, Pages 125-134

http://dx.doi.org/10.22071/gsj.2021.204143.1711

Abstract
  In this research the biostratigraphy and lithostratigraphy of the Talou section (northwest Damghan) have been studied based on brachiopods of Lower Carboniferous in Mobarak Formation. The 580 me thick Mobarak Formation in Talou section consists of dark gray limestone with intercalation of organic rich ...  Read More

Original Research Paper Tectonics
13. Physical modeling of block rotation and the role of ductile sediments in the structural evolution of Kopeh Dagh and Zagros

Marzieh Rostami; Morteza Talebian; Abbas Bahroudi

Volume 31, Issue 3 , Autumn 2021, Pages 135-144

http://dx.doi.org/10.22071/gsj.2021.112225.1357

Abstract
  Anticline axes in both orogenic belts of the Zagros and Kopeh Dagh are offset by NW-SE trending transvers faults. These faults are rotating anticlockwise due to their oblique orientation relative to maximum stress vector, causing shortening across the belt and elongation along the strike. The transverse ...  Read More

Original Research Paper Stratigraphy and Palaeontology
14. Biostratigraphy and Litostratigaphy of Qom Formation deposits in the Navab anticlinal section (southeast of Kashan)

Zeinab Manouchehri; Tayebeh Mohtat; Seyed Ali Aghanabati; Morteza Khalatbari Jafari; Fatemeh Vakil Baghmisheh

Volume 31, Issue 3 , Autumn 2021, Pages 145-156

http://dx.doi.org/10.22071/gsj.2021.304844.1934

Abstract
  The sediments are generally limestone and marl. The lower boundary with the loer red Formation is disconfomity and the upper boundary with the equivalent formatin of Bakhtiari Firmation is paraconformity. The total number of fossils found in this section is 69 species, 72 genera and 46 families. These ...  Read More