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)
Statistics and the process of publishing articles   
umber of Volumes 17
Number of Issues 68
Number of Articles 1,691
Number of Contributors 3,165
Article View 678,349
PDF Download 1,102,371
View Per Article 401.15
PDF Download Per Article 651.9
-----------------------------------------
Number of Submissions 992
Rejected Submissions 489
Reject Rate 49
Accepted Submissions 370
Acceptance Rate 37
Time to Accept (Days) 194
Number of Indexing Databases 13
Number of Reviewers 701
Average First Action 1
Average First Reviewer Assignment 6

          About Geosciences

  • Country of Publication: Iran
  • Publisher: Geological Survey of Iran
  • Format: Online
  • Print ISSN: 1023-7429
  • Online ISSN: 2645-4963
  • Publisher Code: 10.22071/gsi
  • Frequency: Quarterly
  • Publication Dates: Spring, Summer, Autumn and Winter
  • Language: Persion
  • Types of Journal: Scholarly Journals
  • Open AccessYes
  • Policy: Double-blind peer-reviewed
  • Review Time (Submission to Acceptance): 16 Weeks Approximately
  • Alternate e-mail: [email protected]
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Original Research Paper Tectonics
1. Paleostress Analysis in North Makran Ophiolite Mélange, Southeast of Iran

Azizollah Tajvar; mohammadmahdi Khatib; mohammadhosein Zarrinkoub

Volume 32, Issue 1 , March 2022, Pages 1-14

http://dx.doi.org/10.22071/gsj.2021.233540.1796

Abstract
  The north Makran ophiolite mélange, is located on the northern part of Makran accretionary wedge, southeast of Iran. In this study, we investigate geometry and kinematic properties of structural elements, and analyze the deformation style of the north Makran ophiolite mélange. Based on ...  Read More

Original Research Paper Stratigraphy and Palaeontology
2. Reservoir quality assessment of the Fahliyan Formation in one oil field, Northwestern Persian Gulf

Ali Asaadi; Ali Imandoust; Mehdi Sarfi; Mehdi Ghane Ezabadi

Volume 32, Issue 1 , March 2022, Pages 15-26

http://dx.doi.org/10.22071/gsj.2021.286429.1906

Abstract
  The Lower Cretaceous Fahliyan Formation is one of the main oil reservoirs in the Persian Gulf. In this study, for investigating facies characteristics, depositional environment, diagenetic features, sequence stratigraphy and describing factors controlling reservoir quality, the integration of the results ...  Read More

Original Research Paper Sedimentology
3. Geochemistry and the diagenetic sequence of the Taleh Zang Formation in southwest of Kermanshah

Mohammad Shalalvand; Mohammad Adabi; Afshin Zohdi

Volume 32, Issue 1 , March 2022, Pages 27-42

http://dx.doi.org/10.22071/gsj.2020.230000.1790

Abstract
  In this study, the Late Paleocene Taleh Zang Formation in the southwest of Kermanshah hasbeeninvestigatedfor elemental geochemistry and effective diagenetic processes during burial. The thickness of the studied section is 282 meters that mainly composed of shallow marine limestones with interbedded of ...  Read More

Original Research Paper Economic Geology
4. Genesis of the MohammadAbad polymetallic deposit, Delijan: using Geochemistry, and C, O, S isotopes

Ali reza zarasvandi; Mohammad Ali Ali Abadi; Mohsen Rezaei; Houshang Pourkaseb

Volume 32, Issue 1 , March 2022, Pages 43-56

http://dx.doi.org/10.22071/gsj.2021.250340.1847

Abstract
  The Mohammadabad deposit is located in vicinity of Delijan in central province and in terms of structural zones of Iran,in the Uremia dokhtar zone. Stratabound Fe-Ce mineralization in brecciated, vein, massive, layered and laminar forms, consists ore minerals such as hematite, pyrite, chalcopyrite and ...  Read More

Original Research Paper Tectonics
5. Structure-thermal evolution and erosion pattern in Central Zagros

Esmail Farahzadi; Seyed Ahmad Alavi; Mohammad Reza Ghassemi; Shahram Sherkati

Volume 32, Issue 1 , March 2022, Pages 57-72

http://dx.doi.org/10.22071/gsj.2021.269573.1880

Abstract
  AbstractUnderstanding the history of uplift and folding in an area helps inferring the history of hydrocarbon genesis,‌migration ‌and‌ trapping and reducing exploratory drilling risks.‌Thermal model along with structural cross sections help understanding of this history and future plannings for ...  Read More

Original Research Paper Economic Geology
6. Zircon trace elements and oxygen fugacities of parental magma of Maher abad and Khopik Cu porphyries, Lut block

Almasi Alireza; Ghasem Nabatian; Amir Mahdavi; Qiuli Li

Volume 32, Issue 1 , March 2022, Pages 73-88

http://dx.doi.org/10.22071/gsj.2021.280411.1896

Abstract
  The Maher abad and Khopik porphyry Cu deposits occurred in the Upper Eocene (39-37 Ma) in Lut block. All of them associated with intermediate (mostly monzonite) rocks. Porphyry deposits are closely associated with oxidized magmas. Oxygen fugacity (fO2) is a key factor that controls the formation of porphyry ...  Read More

Original Research Paper Tectonics
7. Analysis of deformation models based on sigmoidal vein arrays in the Bahlgerd shear zone

MohammadAmir Alimi

Volume 32, Issue 1 , March 2022, Pages 89-102

http://dx.doi.org/10.22071/gsj.2021.277344.1895

Abstract
  The Bahlgerd shear zone in the northern margin of Bagheran Mountain is separated Eocene flysch from the Cretaceous ophiolite sequence and Quaternary sediments by southern Birjand and Bahlgerd faults. In the deformation evaluation , sigmoidal array arrays located in sandstone units have been used as strain ...  Read More

Original Research Paper Economic Geology
8. Type and genetic model of the Toryan sediment-hosted Pb–Zn occurrence, NW Zanjan

Negar Kaboudmehri; Hossein Kouhestani; Mir Ali asghar Mokhtari; Afshin Zohdi

Volume 32, Issue 1 , March 2022, Pages 103-118

http://dx.doi.org/10.22071/gsj.2021.263678.1874

Abstract
  The Toryan occurrence is located in the Central Iran zone, 120 km northwest of Zanjan. Pb–Zn mineralization at Toryan occurred as laminated and lens-shaped parallel to lamination of grey sandstone units of the Upper Red Formation. Mineralization often formed around and within the fragments of the ...  Read More

Original Research Paper Economic Geology
9. Mineralization, geochemistry and fluid inclusion studies of silicic veins in Sarikhanloo area, NW Meshgin Shahr, NW Iran

Hadi Mohammadian; vartan simmonds; kamal Siahcheshm

Volume 32, Issue 1 , March 2022, Pages 119-136

http://dx.doi.org/10.22071/gsj.2021.253954.1856

Abstract
  The Sarikhanloo area is located within the Qaradagh metallogenic zone in northwest Meshgin Shahr. Igneous rocks cropped out in this area include successions of Paleocene-Eocene pyroclastic rocks (tuff and andesitic-dacitic lavas with intercalations of ignimbrite) and basaltic andesite lava flows. Igneous ...  Read More

Original Research Paper Tectonics
10. Surface temperature pattern analysis of Gach and Siah Tagh salt domes using remote sensing methods, Zagros area

babak Samani; Sajad Zareie; Atefeh Ghanbari

Volume 32, Issue 1 , March 2022, Pages 137-148

http://dx.doi.org/10.22071/gsj.2021.258561.1860

Abstract
  Split-window algorithm is the effective method for determination of land surface temperature. The results of temperature pattern show that the Gach salt dome has a higher temperature than the Siah Tagh salt dome. From a structural point of veiw, the higher temperature of the Gach salt dome can be related ...  Read More

Economic Geology
1. Determination of mineralization conditions based on fluid inclusions data in the Oshvand- Skarn deposit, W of Iran

Mehrdad Movahedi; Mohammad Yazdi; Mehrdad Behzadi

Volume 31, Issue 4 , December 2021, , Pages 111-122

http://dx.doi.org/10.22071/gsj.2021.263309.1871

Abstract
  The Oshvad skarn type deposit was formed during the intrusion of a felsic mass into the Permian and Triassic carbonate rocks and ion exchange occurred between the intrusion mass and these units. In order to determine the properties of the mineralizing fluid in this skarn, several fluid inclusions in ...  Read More

Tectonics
2. Structural Analysis Sirri Oil Field, Using Seismic And Well Logging Data

shima afkhami; Ahmad Alavi; Mohammad Reza Yamini; Mohamad Reza Ghasemi

Volume 31, Issue 1 , June 2021, , Pages 111-120

http://dx.doi.org/10.22071/gsj.2020.197278.1702

Abstract
  The main purpose of this study is to investigate and structureral analyzes of Sirri oil field by subsurface geophysical data. In order to Seismic interpretation from 3 seismic lines (LL3, LL4 and LL5) picked up by Iranian Offshore Oil Company and SIC-1 well Data was used. In addition to interpreting ...  Read More

Sedimentology
3. Geochemistry and the diagenetic sequence of the Taleh Zang Formation in southwest of Kermanshah

Mohammad Shalalvand; Mohammad Adabi; Afshin Zohdi

Volume 32, Issue 1 , March 2022, , Pages 27-42

http://dx.doi.org/10.22071/gsj.2020.230000.1790

Abstract
  In this study, the Late Paleocene Taleh Zang Formation in the southwest of Kermanshah hasbeeninvestigatedfor elemental geochemistry and effective diagenetic processes during burial. The thickness of the studied section is 282 meters that mainly composed of shallow marine limestones with interbedded of ...  Read More

Economic Geology
4. 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 , December 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

Geophysics
5. Assessment of the physical variations)heat and salinity) of climate changes in the Persian Gulf Field data and Numerical Simulation

safieh farrokhi mogaddam; Abbas Alli Alli akbari bidokhti; Farhang Ahmadi givi; Mojtaba Ezam

Volume 31, Issue 1 , June 2021, , Pages 63-70

http://dx.doi.org/10.22071/gsj.2018.133956.1484

Abstract
  Salinity and water temperature are considered as important characteristics of water of different seas. The absolute values and variability of them in time and space determine life sustainability conditions, development of plants and animals and also types of human activity in seas. Water temperature ...  Read More

Original Research Paper Petroleum geology
1. Continuation of Main Recent Fault from Droud to Dena
Articles in Press, Corrected Proof, Available Online from 13 September 2021

http://dx.doi.org/10.22071/gsj.2018.127259.1450

Abstract
  In the northern border of Arabian plate exist a complex reverse fault zone in parallel to the Main Zagros Revers Fault. In spit of them, it could be observed another younger fault with dextral strike-slip nearly parallel to the Main Zagros Revers Fault. The young fault is called Main Recent Fault; MRF ...  Read More

Original Research Paper Exploration and Mining
2. Inverse modeling of Magnetic and IP/RS data for exploration of Northern Dalli Copper-Gold porphyry deposit

Keytash Moshtaghian; Sayyed Mohammad Abtahi Forooshani; Hooshang Asadi Harooni; Mohammad Hajheidari; Ghazal Janghorban

Articles in Press, Corrected Proof, Available Online from 13 October 2021

http://dx.doi.org/10.22071/gsj.2021.272272.1886

Abstract
  The Dalli porphyry Copper-Gold deposit consists of two northern and southern indexes located on the Urmia-Dokhtar Volcanic Belt in Markazi province. Due to the presence of magnetite beneath the potassic alteration zone in the center of porphyry mineralization, a magnetometric survey was performed in ...  Read More

Original Research Paper Stratigraphy and Palaeontology
3. The application of GR D-INPEFA Curve in sequence stratigraphy analysis, a case study from the Manifa member and Fahliyan Formation, Northwestern Persian Gulf

Parynaz rasoulighadi; Mehdi Sarfi; mohsen al-e-ali; zahra maleki

Articles in Press, Corrected Proof, Available Online from 30 November 2021

http://dx.doi.org/10.22071/gsj.2021.302660.1931

Abstract
  Identification of key sequence stratigraphic surfaces is a crucial task in geological characterization of hydrocarbon reservoirs. The uppermost Jurassic–lower Cretaceous carbonate successions of the Manifa member and Fahliyan Formation are as an important oil reservoir of Northwestern Persian Gulf. ...  Read More

Original Research Paper Economic Geology
4. Mieralization, fluid inclusion, and stable isotope studies (O, S) of the Godar Sorkh gold deposit, Muteh, Sanandaj-sirjan

monire sakhdari; Mehrdad Behzadi; M. Yazdi; Nematollah Rashidnejad Omran; Morteza Sadeghi Naeini

Articles in Press, Corrected Proof, Available Online from 27 December 2021

http://dx.doi.org/10.22071/gsj.2021.291598.1914

Abstract
  The Godar Sorkh area is located in the central part of the Sanandaj-Sirjan zone, 20km southwest of the Muteh region. Gold mineralization at Godar Sorkh occurs in quartz-sulfide veins that hosted in metasedimentary rocks. Veins of mineralization typically formed along normal faults. Rock sequences are ...  Read More

Original Research Paper Tectonics
5. Faghan Fault system, constrain on the late Cenozoic kinematics of the Northern Lut Block, Central Iran

Mohammad Reza Mazinani; Ali Yassaghi; Reaza Nozaem

Articles in Press, Corrected Proof, Available Online from 29 December 2021

http://dx.doi.org/10.22071/gsj.2021.287830.1910

Abstract
  The E-W trending Faghan fault system with >180 km in length located in the northern part of the Lut Block and south of the Dorouneh Fault in central Iran. The fault cut through basement rocks and all other younger units from Cambrian to Cenozoic. Kinematic and dynamic analyses of the Faghan fault ...  Read More

Original Research Paper
6. The Role of Basement and Young Magmatism in Epithermal Gold and Polymetallic Mineralization in Takab-Mahneshan area, NW Iran

mojgan Salehi Yazdi; Mansour Ghorbani; nima nezafati; mansor vosoghi abedini

Articles in Press, Accepted Manuscript, Available Online from 03 January 2022

http://dx.doi.org/10.22071/gsj.2022.307017.1938

Abstract
  Takab-Mahneshan's metallogenic area is essential in gold mineralization, and it is a part of the northern Urmia-Dokhtar magmatic belt. The northern Urmia-Dokhtar has two distinctive features. It contains the Precambrian basement, and the young Mio-Pliocene magmatism rocks overlie its Precambrian basement. ...  Read More

Original Research Paper Economic Geology
7. Mineralization of chromite and ilmenite in Kurdistan ophiolite: An approach to determine the geotectonic setting of the ophiolite

Mohammad Ali Rajabzadeh; mohammad amini

Articles in Press, Accepted Manuscript, Available Online from 10 January 2022

http://dx.doi.org/10.22071/gsj.2022.308944.1941

Abstract
  This is report podiform chromite deposits associated with the Kurdistan ophiolite.These ore deposits with granular massive fabric are hosted by dunite and harzburgite occurred in south Marivan city.Chemistry of chromian spinel in the chromite deposits indicated that Cr# for two ore occurrences is high ...  Read More

Original Research Paper Economic Geology
8. Geology, mineralization, alteration and fluid inclusion studies of the Janja porphyry Cu-Mo deposit, Sistan Suture Zone, SE Iran

Nima Rahimi; Shojaedin Shojaedin Niroomand; Mohammad Lotfi; Mojtaba Rahimi Shahid

Articles in Press, Accepted Manuscript, Available Online from 11 January 2022

http://dx.doi.org/10.22071/gsj.2022.274408.1889

Abstract
  The Janja Cu-Mo porphyry deposit is located at 70 km south of the Nehbandan, Sistan suture zone, Eastern Iran. The porphyry mineralization in the Janja deposit is temporally and spatially associated with the diorite to quartz diorite and granodiorite granular to porphyry stocks that intruded in the Cretaceous ...  Read More

Original Research Paper Economic Geology
9. Mineralogy, Geochemistry and Tectono-Magmatic Setting of the Granitoids in the Baghak Fe Skarn Deposit, Sangan Mining District, NE Iran

kiamars hosseini; Majid Shahpasandzadeh; Roghayeh zabihi khargh

Articles in Press, Corrected Proof, Available Online from 17 January 2022

http://dx.doi.org/10.22071/gsj.2022.295975.1921

Abstract
  The Sangan Mining District (SMD) in the north of the Cenozoic magmatic belt of eastern Iran is constituted of predominantly acidic to intermediate volcanic and pyroclastic rocks, intruded by the Eocene granitoids. In the Baghak Fe skarn deposit, these granitoids are composed of pre-mineralization biotite ...  Read More

Original Research Paper Economic Geology
10. The Barzavand copper deposit, NW Naein, Esfahan Province: Constraints on mineralization and geochemistry of alteration system

Shahram Mobaser; taher farhadinejad; Abbas Asgari; Mohammad Ali Ali Abadi; shirin fatahi

Articles in Press, Corrected Proof, Available Online from 17 January 2022

http://dx.doi.org/10.22071/gsj.2022.299006.1929

Abstract
  The Barzavand copper deposit with oligocene age located in 30 Km northeast of Zefreh along tension fault with W-E trend. Alteration in study area is stratabound form and mainly include: pyritization, propylitization, zeolitization, silicification, albitization and prehnitization of basaltic lavas. Furthermore ...  Read More

Original Research Paper Stratigraphy and Palaeontology
11. Ultrastructure studies and evolution on the shell of some brachiopods, Middle Ordovician (Martellia shabjerehansis Percival, 2009) In Shabdjereh, Kerman (Central Iran)

Mohammad Reza Esmaeilbeig; najmeh Nazeri Tahrudi; Mohammadreza Ghotbi Ravandi; Maryam naz Bahrammanesh tehrani

Articles in Press, Accepted Manuscript, Available Online from 24 January 2022

http://dx.doi.org/10.22071/gsj.2022.309072.1943

Abstract
  Stratigraphic and paleontological studies on 6-section brachiopods from Lower to Upper Paleozoic in the Kerman region were performed by a joint Iranian-Italian team. In one of these sections in the Shabjareh area - Kerman - Kat Kouyeh Formation with geographical characteristics of 31º 5´ 56º, ...  Read More

Original Research Paper Stratigraphy and Palaeontology
12. The origin and Geothermobarometery of andesites from Masahim volcano, Shahr-e-Babak, Kerman SE Iran

zahraza khajehjavaran; gholamreza ghadami; Mohammad Poosti; Abbas moradian; behroz karimi

Articles in Press, Corrected Proof, Available Online from 24 January 2022

http://dx.doi.org/10.22071/gsj.2022.311942.1958

Abstract
  Andesites are located in shahr-e-babak north, in central Iran, Urumieh- Dokhtar belt. The main texture in these rocks is porphyry and their phenocrysts are plagioclase (Andesine to Labradorite), pyroxene (Augite), amphibol (Tschermakite and Magnesiohornblende). These properties are signatures of calc- ...  Read More

Original Research Paper Geophysics
13. Fast Earthquake Relocation Using ANFIS Neuro-Fuzzy Network Trained Based on the Double Difference Method

Hamidreza Samadi; Roohollah Kimiaefar; alireza hajian

Articles in Press, Corrected Proof, Available Online from 16 February 2022

http://dx.doi.org/10.22071/gsj.2022.296260.1922

Abstract
  One of the most important issues in seismology is to accurately determine the epicenter of earthquake, mainly because the accuracy of dependent studies such as seismic risk analysis, fault mechanism, depends on the accuracy of mentioned parameter. Double difference method is one of the conventional relative ...  Read More

Original Research Paper Petrology
14. Mineral chemistry, thermobarometry and genesis of clinopyroxenes in Silurian mafic metavolcanic rocks of Maku, North West of Iran

Farzaneh ValinasabZarnagh; Mohsen Moayyed; Ahmad Jahangiri; Hossein Azizi

Articles in Press, Corrected Proof, Available Online from 16 February 2022

http://dx.doi.org/10.22071/gsj.2022.307112.1944

Abstract
  There are discontinuous outcrops of volcanic rocks in the West Azarbaijan province and in the north of Maku city. These volcanic complex were bimodal and compose of acidic and basic lava and pyroclastic rocks. Mineral chemistry studies show that clinopyroxenes in the studied rocks are diopside. These ...  Read More

Original Research Paper Economic Geology
15. Genesis of the Miandasht manto-type copper deposit, East of Mayamey: based on geological, mineralogical and geochemical evidences

Fardin mousivand; Fatemeh Esmaeili; Mahmoud Sadeghian; Seyed Mehran Heidari

Articles in Press, Corrected Proof, Available Online from 26 February 2022

http://dx.doi.org/10.22071/gsj.2022.293355.1919

Abstract
  Miandasht copper deposit is located in 24km north west of Abbasabad of Shahrood, and in the Cenozoic volcanic belt of north of Central Iran. Host sequence has Eocene age and include submarine flows (andesite and basalt), pyroclastic (tuff breccia and agglomerate) and sedimentary complex (Nomullitic limestone, ...  Read More

Original Research Paper Petrology
16. Geochemistry and petrogenesis of intrusive rocks of Chadormalu deposit; an implication on whole-rock geochemistry and Sr-Nd-Pb isotopes

Niloofar Nayebi; Dariush Esmaeily; Sourosh Modabberi; Ryuichi Shinjo; reza deevsalar; Bernd lehmann

Articles in Press, Corrected Proof, Available Online from 26 February 2022

http://dx.doi.org/10.22071/gsj.2022.301762.1930

Abstract
  Sr-Nd-Pb isotopes and whole-rock geochemical analyses were carried out on plutonic rocks of the Chadormalu district to constrain the magmatic history of the Cadomian orogeny of the northern Gondwana margin during Late Precambrian–Early Paleozoic times. Despite the similarities in the geochemical ...  Read More

Original Research Paper Tectonics
17. Effect of deep and surface thrust faults on structural geometry of the Ghalajeh anticline, Lurestan, West Zagros

Reza Alipoor; Ali Jahangiri; Zahra Ghasemi

Articles in Press, Accepted Manuscript, Available Online from 27 February 2022

http://dx.doi.org/10.22071/gsj.2022.317171.1961

Abstract
  The Ghalajeh anticline with about 60 km length and NW-SE trend is located in Lurestan sub-zone and the Zagros fold and thrust belt. Geometry and kinematic of the folds of this zone are controlled by thrust faults and detachment levels. In this research, geometry and deformational style analysis of the ...  Read More

Original Research Paper Petrology
18. Geochemistry and petrology of Upper Triassic basic volcanic rocks in the Central Alborz region, south of Pole Sefid.

saeid samarbakhsh; mohamad hashem emami; Seyed mojtaba Mortazavi; mansor vosoghi abedini

Articles in Press, Corrected Proof, Available Online from 02 March 2022

http://dx.doi.org/10.22071/gsj.2022.314965.1954

Abstract
  The study area, situated 50 km north of Ghaemshahr, structurally belongs to the Central Alborz tectonic zone. The volcanic rocks of the area, including basalt, andesite, trachyandesite, and dolerite are the products of fractional crystallization and some contamination processes. Clinopyroxene, olivine, ...  Read More

Original Research Paper Stratigraphy and Palaeontology
19. Biostratigraphy with emphasis on calcareous nannofossils in the passage of Pabdeh Formation to Asmari Formation in Khaviz section, Khuzestan province

saeedeh senemari; Narges Monjezi

Articles in Press, Corrected Proof, Available Online from 05 March 2022

http://dx.doi.org/10.22071/gsj.2022.302632.1935

Abstract
  Pabdeh Formation to Asmari Formation transition deposits were studied in the stratigraphic section of Khaviz located northeast of Behbehan. In the present research, the deposits of the upper part of Pabdeh Formation consisting shale and interbedded of argillaceous gray limestone with a thickness of about ...  Read More

Original Research Paper Geophysics
20. Investigation of Smooth and Block inversion Characteristics of Electrical Resistivity Data

Reza Ghanati; Zahra Tafaghod Khabaz

Articles in Press, Corrected Proof, Available Online from 12 March 2022

http://dx.doi.org/10.22071/gsj.2022.319630.1962

Abstract
  Inversion of VES data is formulated as a nonlinear problem and solved using multiple depth layers of fixed boundary and a few depth layers of the variable boundary. The model parameters in Smooth inversion are only the resistivity values. However, in the block inversion, the thickness of each layer is ...  Read More

Original Research Paper Stratigraphy and Palaeontology
21. First Report of Cenozoic vertebrate tracks from Kopeh Dagh geological zone, Northeast Iran

Nasrollah Abbassi; Mohammad Vahidinia; Saeid Tavana; Pooria Vaeznia

Articles in Press, Corrected Proof, Available Online from 14 March 2022

http://dx.doi.org/10.22071/gsj.2022.324206.1971

Abstract
  Numerous vertebrate footprints have been found in the dislocated sandstone slabs in the Mashhad city, northeast Iran. Neogene sediments of the Chenaran township are supposed to be provenance of the studied slabs. Identified footprints includes artiodactyl tracks as ichnotaxa Bifidipes velox, Lamaichnum ...  Read More

Original Research Paper Petrology
22. Petrography and mineral chemistry of xenoliths in dyke swarm of Northeastern of Meshkinshahr

Mohammad Fadaeian; Amin Allah Kamali; Kourosh Mohammadiha

Articles in Press, Corrected Proof, Available Online from 15 March 2022

http://dx.doi.org/10.22071/gsj.2022.313637.1948

Abstract
  The study area is located in Ardabil province and northeast of Meshkinshahr city and structurally in Alborz-West-Azerbaijan zone. Tephritic dykes have pyroxenite and gabbro xenolites. Mineralogy of tephritic dykes and xenolites includes plagioclase, clinopyroxene, analcime, amphibole, olivine and phlogopite. ...  Read More

Original Research Paper Stratigraphy and Palaeontology
23. Systematic and paleoecology of Lower Cretaceous (Aptian) echinoids from Siriz area, northwest of Kerman, Iran

Ahmad Lotfabad Arab

Articles in Press, Accepted Manuscript, Available Online from 26 March 2022

http://dx.doi.org/10.22071/gsj.2022.314179.1950

Abstract
  In order to identify, classify and paleoecological study of Lower Cretaceous echinoid fauna in northwest of Kerman area, the stratigraphic section of Siriz, was selected and its specimen were sampled and studied. Echinoids were studied and identified from a rich and diverse collection of macrofossils ...  Read More

Original Research Paper Stratigraphy and Palaeontology
24. Biostratigraphy and Lithostratigraphy of Asmari Formation in The Chenareh Anticline and compare with Amiran Anticline Stratigraphical section in the Zagros Folde Belt, Lorestan, Iran.

Peiman Rajabi

Articles in Press, Accepted Manuscript, Available Online from 26 March 2022

http://dx.doi.org/10.22071/gsj.2022.290018.1913

Abstract
  The Asmari Formation In the Lorestan area is clife forming and consist of medium to tick beded Limestone with Benthic Foraminifera. In this study, stratigraphic Sequence of Asmari carbonate formation in Chenareh Anticline section located in the south of Lorestan basin and Amiran Anticline section located ...  Read More

Original Research Paper Geological Environment and Engineering
25. Environmental Geochemistry and geobiochemistry studies on agricultural soil and rice plant in Sari- Mazandaran Province

Farah Rahmani; Abdolreza Jafarian; razieh Lak; Javad Esmaeili

Articles in Press, Accepted Manuscript, Available Online from 26 March 2022

http://dx.doi.org/10.22071/gsj.2022.316756.1959

Abstract
  The present study aims to determine the concentration of heavy metals and toxic metalloids in rice of Sari. Sampling was performed from 32 stations of the rice seed section. The soil-plant relationship was investigated in 6 stations using samples taken from rice soil and other plant parts such as roots, ...  Read More

Original Research Paper Petrology
26. Geochemical variation and petrogenesis of magmatic rocks in the north of Ardabil: Implications for determination of the tectonomagmatic pattern of northwestern Iran

Ali Lotfi Bakhsh

Articles in Press, Accepted Manuscript, Available Online from 26 March 2022

http://dx.doi.org/10.22071/gsj.2022.324411.1972

Abstract
  In the north of Ardabil (from Namin to Lahroud) there are widespread sequences of Eocene and Quaternary mafic to intermediate and felsic magmatic activities with different compositions. The composition of these rocks varies from basaltic lavas as well as dacitic and rhyolitic domes in Namin to basalt ...  Read More

Original Research Paper Petroleum geology
27. The Clay Minerals Identification of Asmari Reservoir Formation in Maroun Oilfield

Shadi Mohavvel; Golnaz Jozanikohan; Sohaila Aslani

Articles in Press, Corrected Proof, Available Online from 04 April 2022

http://dx.doi.org/10.22071/gsj.2022.200949.1904

Abstract
  The presence of clay minerals of any type, amount or distribution pattern in hydrocarbon wells causes numerous problems in the formation evaluation. In this research, 15 core samples from Asmari Formation in the Maroun Oilfield were selected in order to study the type and distribution pattern of clay ...  Read More

Original Research Paper Stratigraphy and Palaeontology
28. Biostratigraphy of plant macrofossils of the Mazino, southwest Tabas, Central East Iran and its palaeoecological analysis

Fatemeh Vaez-Javadi; Abbaszadeh Mahdi

Articles in Press, Corrected Proof, Available Online from 01 May 2022

http://dx.doi.org/10.22071/gsj.2022.307599.1937

Abstract
  Plant macrofossils of Hojedk Formation were studied in a well of the Mazino region, southwest of Tabas, so that 29 species of plant macrofossils belonging to 15 genera of various orders were identified. One local interval biozone- Ptilophyllum harrisianum-Klukia exilis Interval zone were recognized. ...  Read More

Original Research Paper Petrology
29. Geology, geochemistry and petrogenesis of Taftan volcano: an approach to geodynamic of Makran-Chagai magmatic arc

Jalil Ghalamghash; Meysam Akbari; Reza Jamal

Articles in Press, Corrected Proof, Available Online from 01 May 2022

http://dx.doi.org/10.22071/gsj.2022.323660.1969

Abstract
  The Taftan volcano hosts an extensive volcanic activity during Late Miocene to Quaternary where took place over Makran zone. Taftan rocks are mainly basaltic andesite, andesite, trachyandesite, and dacite that occur as lavas and pyroclastic rocks. They are characterized by basic-intermediate inclusions ...  Read More