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)
Stratigraphy and Palaeontology
Micro biostratigraphy and paleo environment of Oligo-Miocene deposits in north of central Iran

shahram navavajary; Iraj Maghfouri Moghaddam; Ali Reza Shahidi; Hamid Nazari

Volume 31, Issue 1 , June 2021, , Pages 37-50


  Oligo-Miocene rocks are deposited between Pyrenean and Pasadenian orogenic phases. This rocks in central Iran back arc deposits are named Qom formation. There are well developed outcrops of Qom formation at the North of Central Iran zone. In order to study microbiostratigraphy of the formation, Three ...  Read More

Dolomitization, microfacies and their impact on reservoir quality of the Upper Dalan Formation in South Pars Gas Field

Umid Kakemem; Mohammad Adabi; Bahman Gudarzi

Volume 28, Issue 110 , December 2018, , Pages 137-148


  Investigating of dolomitization and its effects on reservoir quality of the Upper Dalan Formation with Permian-Triassic in age is the aim of this study. In this section, the Upper Dalan Formation consists of carbonates and evaporite rocks with a thickness of 265m. Eleven carbonate- evaporate microfacies ...  Read More

Petroleum geology
Microfacies Analysis and Reservoir characterization Low Resistivity Pay, Dariyan Formation, Southeastern of Persian Gulf

Bita Arbab; Davood Jahani; Bahram Movahed

Volume 28, Issue 109 , September 2018, , Pages 23-32


  The Aptian Shuaiba deposits, in southeastern of Persian Gulf due to having resistivity less than 6 to 1 ohm.m, is considered as low resistivity pay zone. On the basis of experimental  studies 8 microfacies defined which settled in a carbonate platform of homoclinal ramp model that belong to outer, ...  Read More

Microfacies and sedimentary environment of Jahrom Formation in Saldoran and Dasht- Zari sectione, Shahr-e-Kord, high Zagros

M. Soltani Najafabadi; S. A. Babazadeh; M. Aleali; B. Asgari Pirbaluti

Volume 27, Issue 108 , September 2018, , Pages 115-124


  Jahrom Formation is dominated by gray thick bedded limestones that mainly consist foraminifera. Two stratigraphic sections, (Saldoran and Dasht-Zari) were selected for this research and the thickness of this formation is reached to 176.5 and 200 m respectively. These sections are located in west of Shahr-e- ...  Read More

Microfacies analysis and depositional environment of the Fahliyan Formation (Lower Cretaceus), Abadan plain, West South of Iran (Arvand-field)

Abbas Dehkar; Vali Ahmad Sajjadian; Mohammad Reza Noora; Kazem Shabani Goorji

Volume 27, Issue 106 , March 2018, , Pages 45-52


  The Fahliyan Formation of Khami Group is hosting important hydrocarbon reserves in Iran and also is a main reservoir rock in the Abadan Plain oil fields which is Neocomian in age. In the studied wells its thickness is about 406 meters. In the Abadan Plain, the Fahliyan Formation transitionally overlies ...  Read More

Microfacies, depositional environments and biostratigraphy of Asmari Formation in Dashroom section (South of Yasuj)

T. Binazadeh; A. Binazadeh; T. Vafaei

Volume 27, Issue 106 , March 2018, , Pages 169-178


  The Asmari Formation is a thick carbonate sequence in Zagros foreland basin (southwest of Iran). It was deposited during Oligocene – Early Miocene ages. The formation with a thickness of 233m cropped out in the Dashtroom section (15 km south of Yasuj). This formation was studied from microfacies, ...  Read More

Microfacies analysis and depositional environments of the Asmari Formation at the Ghar-e Agha Seyyed section, Farsan area (Chaharmahal Bakhtiari province), High Zagros

S. M. Hamidzadeh; A. Babazadeh; B. Asgari – Pirbaluti; A. Solgi

Volume 27, Issue 105 , December 2017, , Pages 25-32


  The Asmari Formation was measured and sampeled in Ghar-e Agha Seyyed at Farsan area in order to determine sedimentary environment based on facies analysis. In the study area, the Asmari Formation has a thickness of 183 m and conformably underlained the Pabdeh Formation. Based on microfacies studies, ...  Read More

Depositional and post - depositional analysis of the Fahliyan Formation in Lar and Khami Anticlines (Izeh zone)

L. Azad Shahraki; H. Rahimpour Bonab; M. Ranjbaran; A. Kangazian

Volume 26, Issue 104 , September 2017, , Pages 81-94


  The Lower Cretaceous (Neocomian) carbonates of the Fahliyan Formation are considered as important reservoir rocks in the Zagros Basin. In this study, the sedimentary successions of this formation in Lar (620m thick) and Khami (517m thick) anticlines, located in the Izeh zone, were investigated to analyze ...  Read More

MicrofaciesAnalysis and Paleoenvironment of Carbonate Sedimentary Rocks(Asmari Formation)in Posht-Darband, Hamedan

S.A Babazadeh; M Rahmati

Volume 25, Issue 97 , December 2016, , Pages 123-130


  Carbonate sedimentary rocks equivalent to Asmari Formation containing thick and thin bedded and massive limestones with a thickness of 160m studied in Posht-Darband, Hamadan.  The base of the sedimentary sequence begun with a transgressive conglomeratic horizon. This horizon is composed of rock ...  Read More

Microfacies Analysis of the Asmari Formation at Gorg-Darreh Area, Kuh-e-Mish (in the Zagros Fold-Thrust Belt)

S.A Babazadeh; M Ghavidel-Syooki; H Ghasabi

Volume 24, Issue 95 , June 2015, , Pages 31-38


  The Asmari Formation is well-exposed at Kuh-e-Mish, locating at Gorg-Darreh area (The Zagros fold-thrust belt). In this area, the true thickness of Asmari Formation is 480m. This formation was studied for its microfacies analysis in Gorg-Darreh area (kuh-e-Mish). In this study, seven microfacies was ...  Read More

Microfacies, Sedimentary Environment, Sequence Stratigraphy and Strontium Dating of the Dashtak Formation in the Persian Gulf, Fars and Izeh Regions

M Hajian Barzi; S.M Aleali; D Falah Kheyrkhah; M Falah Kheyrkhah

Volume 24, Issue 95 , June 2015, , Pages 185-198


  The Middle- Late Triassic Dashtak Formation acts as one of the best seal for giant gas reservoirs entrapped within the Dehram group inthe Southwest of Iran and the northern Persian Gulf because ofthick anhydrite deposits. The facies analysis of Dashtak Formation led to recognition of 14 microfacies, ...  Read More

Investigation of the Late Permian Sea-Level Fluctuations based on the Facies Evolutions; An Example from the Upper Dalan Member in the South Pars Gas Field

L Amirbahador; H Rahimpour-Bonab; M Arian

Volume 24, Issue 95 , June 2015, , Pages 263-275


  This study is focused on the microfacies and facies associations in the 540 meter-thick interval of the Late Permian ‌Upper Dalan reservoirs in the South Pars Gas Field using the petrographic studies, image analysis techniques and quantitative analysis of the constituting components. The petrographic ...  Read More

Depositional Environment and Sequence Stratigraphy of the Kangan Formation in South Pars Field

S.A Aleali; H. Rahimpour-Bonab; S. R. Moussavi -Harami; D. Jahani; A. Asadi-Eskandar

Volume 22, Issue 87 , December 2013, , Pages 65-74


  The Early Triassic carbonates of Kangan Formation are major gas reservoirs in the Southwest of Iran and the northern Persian Gulf. Facies analyses of Kangan Formation led to recognition of 13 microfacies which are related to tidal flat, lagoon, shoal and open marine environments. Examination of vertical ...  Read More

Geochemical and Sedimentology Characteristics of Dariyan Formation in Fars Area, Case Study: Kuh-e Siyah and Sabzpushan Well# 1

M. H. Adabi; R. Abbasi; H. Ghalavand

Volume 21, Issue 81 , December 2011, , Pages 3-14


  In this investigation Dariyan Formation with the age of Lower Cretaceous (Aptian- Albian) were studied for geochemical and sedimentology characteristics in the surface section at Kuh-e Siyah Anticline and subsurface section Sabzpushan well number 1. Based on petrographical studies 12 microfacies identified ...  Read More

Sedimentary Environment, Diagenesis and Geochemistry of the Fahliyan Formation in the Type Section (Fahliyan Anticline) and Gachsaran Oil Field

M. A. Salehi; M. H. Adabi; H. Ghalavand; M. Khatibi-Mehr

Volume 19, Issue 76 , January 2010, , Pages 33-44


  The Fahliyan Formation with the age of Lower Cretaceous (Berriasian-Hauterivian) were studied for microfacies analysis, diagenesis and original carbonate mineralogy in the type section at Fahliyan Anticline and subsurface section in well number 55 of Gachsaran Oil Field. Petrographic studies led to the ...  Read More

Diagenesis and Geochemistry of the Ziyarat Formation in the Type Section, Tochal, (Alborz (

M. H. Adabi; M. Khatibi Mehr; A. Moallemi; A. Sadeghi; M. A. Salehi

Volume 19, Issue 73 , January 2009, , Pages 153-163


  The Ziyarat Formation is an Upper Paleocene to Middle Eocene carbonate sequences, located in North of Tochal Village (south-east of Tehran), near Emam Zadeh Abdollah. The Ziyarat Formation with the total thickness of 212.5 m conformably overlies the Fajan conglomerate and is overlain by greenish tufaceous ...  Read More

Lithostratigraphy, Microbiostratigraphy and Microfacies of the Ilam Formation in Southwestern Khorram Abad

S.H. Vaziri; D. Jahani; M. Safdari; F. Chegeni

Volume 17, Issue 67 , February 2008, , Pages 124-139


         The Ilam Formation in southwestern Khorram Abad with a thickness of up to 204 meters consists of uniform limestones with Middle Turonian to Early Campanian age which were deposited in a continuous sedimentation process. In this section, the Ilam Formation has continuous ...  Read More