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 21 (2012)
Volume 20 (2011)
Volume 19 (2010)
Volume 18 (2009)
Volume 17 (2008)
Volume 16 (2007)
Original Research Paper
Tectonic Provenance of Kahar Formation (Late Neoproterozoic) Using Modal and Heavy Mineral Analyses in Sandstones, Type Locality, Kahar Mountain, Central Alborz

N Etemad-Saeed; M. H Adabi; A. Sadeghi; M. Hosseini- Barzi

Volume 22, Issue 88 , December 2013, Pages 3-12


  This work is focused on tectonic provenance of the Late Neoproterozoic Kahar Formation in the northern Iran. KaharMountain (type locality) provides valuable information on tectonic events during this time. The Kahar Formation in this area is a well preserved sedimentary sequence and consists of about ...  Read More

Original Research Paper
Structural Analysis of Lahijan Fault Zone - Western Alborz

H Safari; M. R. Ghassemi; M. Agh- Atabay; R. Razavi pash

Volume 22, Issue 88 , December 2013, Pages 13-18


  Lahijan fault zone is one of the transverse faults in western Alborz which with, sinistral mechanism caused structural deformations in this region. In this research, with using of field investigations, Remote Sensing techniques and statistical structural analysis methods, the structural analysis of Lahijan ...  Read More

Original Research Paper
Magnetostratigraphy of Bathonian-Callovian Boundary (Middle Jurassic) of Golbini Section, Eastern Alborz, Iran

M. Paknia; Habib Alimohammadian; M. R. Majidifard; J. Sabouri; A. Aghanabat

Volume 22, Issue 88 , December 2013, Pages 19-30


  The Golbini section comprising of continuous succession of sediments ranging in age from Triassic – Jurassic formations, is situated at 35 Km north – east of Jajarm city. On the bases of studies on Dalichai Formation at this section and at about Middle Jurassic (Bathonian–Callovian ...  Read More

Original Research Paper
Three Dimensional Structure of the BAM Region from Local Earthquake Tomography

Z. Jeddi; Mohammad Tatar; B. Saeedi Razavi

Volume 22, Issue 88 , December 2013, Pages 31-40


  The catastrophic December 26, 2003 Mw 6.6 Bam earthquake is one of the most disastrous earthquakes in Iran. This earthquake attracted much attention, and has been far more studied that which would be expected from a moderate magnitude earthquake. Nevertheless, there are doubtful results related to geometry ...  Read More

Original Research Paper
Structural Analysis of the Main Recent Fault and its Relation with the Main Zagros Reverse Fault in Kurdistan

S. Sadeghi; A. Yassaghi; M. Fathollahi

Volume 22, Issue 88 , December 2013, Pages 41-50


  In this paper, the structural relationship between two main structural features of the Zagros suture zone, that is, the Main Zagros Reverse Fault (MZRF) and the Main Recent Fault (MRF) in Kurdistan area has been studied in more detail. This provides information as to the structural evolution and seismotectonics ...  Read More

Original Research Paper
The Authentication of Paleo High by Geochemical Methods in the Center of Binak Oilfield, South Iran

B Alizadeh; R. Fouladvand

Volume 22, Issue 88 , December 2013, Pages 51-56


  The main goal of this study is to introduce a paleo high in the central part of Binak oilfield using geochemical parameters. Despite the effect of this phenomena on sedimentation, due to its low amplitude of uplift and lack of unconformity, so far remained unknown in this oilfield. Seismic and well log ...  Read More

Original Research Paper
The Effective Factors on Development and Zoning of Karst in Cheleh Basin Using Fuzzy logic and AHP Models in Kermanshah Province

M Yamani; A. A. Shamsipour; M. Jafari Aghdam; S. Bagheri Seyed shokr

Volume 22, Issue 88 , December 2013, Pages 57-68


  The Cheleh basin is located in the south of Kermanshah province and the Zagros morphotectonic zone. According to the vast of limestone formation, and the presence of tectonic faults, developed karst land forms has evolved. The purpose of this study is to survey the development of karst and the effect ...  Read More

Original Research Paper
Instantaneous Spectral Attributes Obtained from Time-Scale Map Continuous Wavelet Transform (CWT)

M Yari; R. Mohebian; M. A. Riahi

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


  Instantaneous spectral attributes such as center frequency, root-mean-square frequency and bandwidth often are extracted from time-frequency spectrum to describe frequency- dependent rock properties in exploration seismic. These attributes are defined using probability theory. A time-frequency map (spectrogram) ...  Read More

Original Research Paper
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


  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

Original Research Paper
The Effect of Upper Red Formation Salt Unit on Structures of South Central Alborz "An Analogue Modelling Approach"

M Royatvand; A Bahroudi; M. Qoreshi; M. R. Ghasemi; S. A. Aghahosseini

Volume 22, Issue 88 , December 2013, Pages 87-98


  The Oligocene salt in the Garmsar and Eyvankey plateau, south–central Alborz, has extruded on the quaternary sediments and formed a salt glacier. This open-toe salt glacier is about 24×17 km that is unique continental salt glacier in the world, dimensionally. Also, this ductile substrate ...  Read More

Original Research Paper
Mineralization, Alteration and Ore Fluid Characteristics in Cheshmeh Hafez Base and Precious Metals Deposit, Torud-Chahshirin Range, North-Central Iran

E. Haghighi; S. Alirezaei; E. Ashrafpour

Volume 22, Issue 88 , December 2013, Pages 99-110


  The Cheshmeh Hafez deposit in Torud-Chahshirin Range, north-central Iran, consists of a polymetal vein mineralization in Cenozoic volcanic host rocks of dominantly basaltic andesite and dacite compositions. The main ore vein, 1800 m long and <1 – 5 m wide, occurs discontinuously in a north-south ...  Read More

Original Research Paper
Calcareous Nannoplankton of Holocene Sediment in the Persian Gulf (Shahid Rajaee Port)

A. Pouresmaeil; F. Hadavi; R. Lak

Volume 22, Issue 88 , December 2013, Pages 111-120


   In this study, a core with 10.5 m lenght and in shallow water in Bandar Abbas (Shahid Rajaee Port area) was studied based on calcareous nannoplankton. In this study, 52 samples of sediment cores were taken and prepared. Most species were photographed by light microscope. For the first time 21 genera ...  Read More

Original Research Paper
Depositional Environment and Sequence Stratigraphy of Pesteliegh Formation in Central Kopet Dagh (Dareh-Gaz)

A. Karimian Torghabeh; S.R Moussavi-Harami; A. Mahboubi

Volume 22, Issue 88 , December 2013, Pages 121-130


  Siliciclastic succession of Pesteliegh Formation, Lower Paleocene, has an extensive exposure in the Kopet Dagh basin. Three stratigraphic sections, consist of Dareh Gaz, Shamsikhan and Karnaveh in central Kopet Dagh, were measured and studied for environmental  interpretation and sequence stratigraphic ...  Read More

Original Research Paper
Investigation of Au-Bearing Listvenite Using Mineralogy, Geochemistry, Fluid Inclusion and Stable Isotopes (Oxygen, Carbon and Sulfur) in Ophiolite-Melange Zone of East Iran (Hangaran Area, South Birjand)

R. Monazzami bagherzadeh; H. Mirnejad; P. Eshback; M. H. Karimpour

Volume 22, Issue 88 , December 2013, Pages 131-144


  Listvenites or ophiocarbonates are considered important for exploration of precious and base metlas particularly Au, Ag, Cu, As and Hg. ‏These rocks, which crop-out dominantly in ophiolite-mélange zones and in the vicinity of main faults and shear zones, have formed as the result of hydrous ...  Read More

Original Research Paper
Qualitative and Quantitative Ways of Erosion and Sediment Assessment Using MPSIAC‌ and EPM Models in Vardeh Drainage Basin(North of Karaj)

SH. Gholipouri; P. Ghazanfari; M. Almasian; N. Jalali

Volume 22, Issue 88 , December 2013, Pages 145-154


  Vardeh drainage basin is located at north of Karaj and belongs to Central Alborz structural zone and its climate is semi-humid. The area of Vardeh basin is 68,97km2. Formations in this basin mainly include shale, tuffaceous shale, tuffaceous sandstone and limestone. The age of Kahar Formation is Precambrian, ...  Read More

Original Research Paper
Mineralogy and Hydrothermal Alteration of the Epithermal Vein System at the Motrabad Prospect, NE Iran

M. H. Ahmadi; G.H Shamanian; H. Azmi

Volume 22, Issue 88 , December 2013, Pages 155-164


  The Motrabad vein system is located 30 Km southwest of Bajestan in the northern part of the Lut Block. The vein host rocks consist of intermediate to silicic volcanic rocks. The mineralization occurs as irregular veins, veinlets and hydrothermal breccias. Based on field geology and textural evidences ...  Read More

Original Research Paper
Sea Level Changes Based on Planktonic Foraminifera and a Study of their Umbilical System in Relation to Depth in the Sarvak Formation in Kabirkuh, Southeast Ilam

G. Daneshian; S. A. Moallemi; A. A. Azad

Volume 22, Issue 88 , December 2013, Pages 165-174


  In this research, the Sarvak Formation and lower part of the Surgah Formation in Kabirkuh anticline, southeast Ilam with thickness of 897 m were studied. Prospect of changes in umbilical structures of planktonic foraminifera such as lip, ortico throughout of Albian to Turonian were investigated. The ...  Read More

Original Research Paper
Geometry and Kinematic of the Garmsar Fault Since Neogene

Arman Heravi; H. Nazari; A. Shahidi; M. Talebian

Volume 22, Issue 88 , December 2013, Pages 175-186


  The Garmsar Fault with a length of about 75 km and E-W trend  is located in Garmsar.This Fault observed in north of Garmsar and  eastern part of central Alborz with slop toward north, continus east of Eyvanakey Fault. Base of the morphotectonical investigation, along the Garmsar Fault this ...  Read More

Original Research Paper
Geological and Geochemical Characteristics of the Syah Kamar Porphyry Molybdenum Deposit, West of Mianeh, NW Iran

F. Khaleghi; Gh. Hosseinzadeh; I. Rasa; M. Moayyed

Volume 22, Issue 88 , December 2013, Pages 187-196


  The Syah kamar molybdenum deposit is a porphyry molybdenum system which has been explored during the recent research of author in the northwest of Iran and is being reported for the first time and its ore mineralization is explained and discussed in this paper on the basis of geological data, mineralization ...  Read More

Original Research Paper
Precambrien Crustal Basement Rocks in Iran New Evidence from the Takht-e-Soleyman Metamorphic Complex from NE Takab

R. Hajialioghli; M. Moazzen

Volume 22, Issue 88 , December 2013, Pages 197-204


  The Prototethys ocean is formed between tow giant continents of Gondwana in the north and Eurasia in the south. Iranian terrain as neigburhood countries in the Oman, Pakestan, SE Turkey has been belonged to the giant Gondwana during Precambrian and Paleozoic. Precambrian terrains in Iran show limited ...  Read More

Original Research Paper
New Investigation on Petrogenesis and Age Dating of Quaternary Basic Lavas in Northwest Iran, to Compare with Source Centers in Turkish- Iranian Plateau

Monireh Kheirkhah

Volume 22, Issue 88 , December 2013, Pages 205-218


  Many centres within Iran are Plio-Quaternary in age and so formed 10s of millions of years after initial Arabia-Eurasian collision. Both composite volcanoes and lava fields present from Anatolia to eastern Iran. Basaltic rocks from Maku in the northwest Azerbaijanprovince of Iran are part of a widespread ...  Read More

Original Research Paper
Geology, Geochemistry and Petrogenesis of Oshnavieh Plutonic Complex (Northwest of Iran)

J Ghalamghash; S. Houshmand Manavi; M. Vousoughi Abedini

Volume 22, Issue 88 , December 2013, Pages 219-232


  Oshnavieh Plutonic Complex (OPC), hosted within the northernmost part of the Sanandaj- Sirjan zone, allows distinguishing three suites including diorite, granite and alkalisyenite-alkaligranite (AS-AG). Dioritic rocks formed from partial melting of enriched lithospheric mantle sources on base of minerlogical ...  Read More