Editor-in-Chief Lecture
Application of Remote Sensing in Exploration Pumice Around Damavand Apex

S. M. Masoudi; F. Fereidoni; & A. A. Matkan

Volume 19, Issue 76 , January 2010, Pages 3-8


  In this study, for the first time, Pumices around Damavand Mountain is studied by IRS-1C, Aster and ETM+ images. For this purpose at first, all images are preprocessed. It means geometric corrections and registering images together and with topography maps (1:25000) are done. Then atmospheric corrections, ...  Read More

Original Research Paper
The Using of Field and Microstructural Evidences in Determination of the Origin of Magmatic Enclaves and Metapelitic Xenoliths in Malayer Plutonic Complex (West Of IRAN)

R. Deevsalar; M.V. Valizadeh

Volume 19, Issue 76 , January 2010, Pages 9-15


  The results of field studies (i.e. shape, dimensions, spatial distribution, condition of enclaves and xenoliths in the host rocks at available outcrops) experimental observations (i.e. petrographical and microstructural study of enclaves and xenoliths and whole rock geochemistry of magmatic encalves) ...  Read More

Original Research Paper
A New Effective Approach for Enhancement of SAR Images Based on Extraction of Interscale Dependencies in the Wavelet Domain

M. Forouzanfar; H. Abrishami-Moghaddam; M. Dehghani

Volume 19, Issue 76 , January 2010, Pages 17-22


  Despite the wide application of SAR images in lineaments extraction, DEM generation and displacements determination, their radiometric quality and interpretability is degraded due to the presence of a multiplicative noise called speckle. Therefore, the enhancement of SAR images is an important step before ...  Read More

Original Research Paper
Geochemistry of the Asmari Formation at the Tang-e-Sapou and Tang-e-Ban Outcrop Sections, Kohgiluyeh va Bouyer Ahmad Province

Z.K. Mossadegh; M.H. Adabi; A. Sadeghi

Volume 19, Issue 76 , January 2010, Pages 23-32


  We studied the geochemistry of the Asmari Formation in two outcrop sections: Tang-e-Sapou a 260 m section near Dehdasht City (Kohgiluyeh va Bouyer Ahmad Province) and Tang-e-Ban a 214 m section near Behbahan City (Khozestan Province). Sampling included the complete Asmari Formation and the top of the ...  Read More

Original Research Paper
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

Original Research Paper
Biostratigraphy & Paleoenviroment of the Qom Formation in Northeast of Mahneshan

J. Daneshian; M. Shahrabi; M. Akhlaghi

Volume 19, Issue 76 , January 2010, Pages 45-50


  75 samples of the Qom Formation in Andabad, northeast Mahneshan, were investigated. The Qom Formation in the examined section with a thickness of 301m, mainly consists of limestone and marl, and disconformably overlies the Lower Red Formation and lies under the sediments of the Upper Red Formation. A ...  Read More

Original Research Paper
The Study of Rose Diagrams by Statistical Joint systems of Intrusive Rocks in Shahrestan Area, Piranshahr (West Azarbaijan)

samad alipour; R. Nikrouz

Volume 19, Issue 76 , January 2010, Pages 51-56


  Shahrestan mining district is the largest extensive granitic stone province in Iran. There are 25 active mines in this area. The study of rose diagrams with statistical joint systems at this ornamental stone mining district carried out in order to reduce expenses with low waste disposal of mining extraction. ...  Read More

Original Research Paper
Detection of Recent Activity on Doruneh Fault Using Remote Sensing Data and Geological Information

H. Amini; M. Fattahi; M. R. Ghassemi

Volume 19, Issue 76 , January 2010, Pages 57-62


  Doruneh is an active left- lateral strike- slip fault in North-East Iran.  Surface trace of this fault is about 700 km long, and cuts across Quaternary and Tertiary deposits.  In some places along the fault, sediments of Paleogene.  Neogene, and alluvial fans of Quaternary age are displaced ...  Read More

Original Research Paper
Lithofacies, Depositional Environment and Relative Sea Level Changes in Deposits Attributed to Lalun Formation in Bahmoo Section, Poshte Badam Block

M. Hosseini-Barzi; N. Etemad Saeed

Volume 19, Issue 76 , January 2010, Pages 63-70


  The Early Cambrian Lalun Formation in Poshte- Badam block has been studied in Bahmoo section with 550 m thickness, to illuminate its sedimentary environment and sea level changes. The field investigations, collection of 110 paleocurrent data, petrography, study of SEM images and XRD analysis of shale ...  Read More

Original Research Paper
Detecting Potential Seepage Paths in Bakhtyari Dam Site using Seismic Tomography

Y. Sharghi; F. Alinia; H. R. Siahkoohi

Volume 19, Issue 76 , January 2010, Pages 71-78


  Seismic travel time tomography uses seismic waves to image velocity distribution inside the ground. This method has been widely applied to practical applications in many fields including earth sciences. In this method, first-arrival times of seismic waves due to artificial sources, observed at receivers ...  Read More

Original Research Paper
Calcareous Algae of the Permian Deposits in Central Alborz: An Environmental and Sequence Stratigraphic Approach

H. Mosadegh; M. Lankarani

Volume 19, Issue 76 , January 2010, Pages 79-84


  The carbonate facies of Permian in Gaduk area (Central Alborz) are dominated by calcareous algae. Study of the facies resulted in recognition of several species of Cyanobacteria, Dasycladacean and Gymnocodiacean green algae and also Phylloid algae. In the studied succession, Phylloid algae are identified ...  Read More

Original Research Paper
Various stages of Sulfide Mineralization in Sargaz Volcanogenic Massive Sulfide Deposit, Northwest Jiroft, Southern Sanandaj-Sirjan

zahra badrzadeh; M. Sabzehei; E. Rastad; M. H. Emami; D. Gimeno

Volume 19, Issue 76 , January 2010, Pages 85-94


  The Sargaz massive sulfide deposit is situated near Jiroft (south-east Kerman), in the southern Sanandaj-Sirjan Zone. The host rocks are Upper Triassic to lower Jurassic(?) pillow basalt. The occurrence of mineralization in basaltic to basaltic andesite, the existence of Jaspilite and Fe-Mn horizons ...  Read More

Original Research Paper
Chronology of Last Earthquake on Firouzkuh Fault using by C14

Hamid Nazari; J-F Ritz; R Walker; R Salamati; A Ghasemi; A Shafei

Volume 19, Issue 76 , January 2010, Pages 95-98


  The Firouzkuh Fault in most of its extension is located at the southern side of Firouzkuh Valley in west of the Central Alborz.  It is a SW – NE prominent structure with a 70 km long on a sinistral –normal fault. It has been known as a south-dipping reverse fault.Paleoseismic analysis ...  Read More

Original Research Paper
Assessing the Effects of Artificial Recharge on the Goharkoh Plain Aquifer

M. Rezaei; A. Sargezi

Volume 19, Issue 76 , January 2010, Pages 99-106


  Over-exploitation from Goharkuh plain aquifer, southwest of Zahedan, resulted in water table drawdown. In order to assessing the effect of artificial recharge, numerical model of groundwater flow of the aquifer was developed. Well loges, hydrogeologic parameters, pizometric heads and results of pumping ...  Read More

Original Research Paper
The Strategies for the Development of Gemstones Industry in Iran

M. H. Basiri; S. Seyed Salmasi

Volume 19, Issue 76 , January 2010, Pages 107-112


  The precious stones are one of the vast and high profit potential of national income for many countries. Nowadays exploration, processing and exports of gemstones play important role in the economy of the many countries such as South Africa, Burme, Thailand, China, India, the United States and so on. ...  Read More

Original Research Paper
The Origin and Evolution of Quaternary Basaltic Magmas in NW Azerbaijan (Burlan to Gonbad) using Sr- Nd Studies

Monireh Kheirkhah; M. H. Emami

Volume 19, Issue 76 , January 2010, Pages 113-118


  At the farthest end of NW Iran, the Quaternary basalts crop out in Azerbaijan province, located in Alpine – Himalaya belt and highly pleatue of Iran-Turkish, eastern Anatolian. The Quaternary volcanic units of NW Azerbaijan cover a broad compositional range from basalts, basaltic andesite, trachy ...  Read More

Original Research Paper
Mineralography, Structural and Textural Studies and Genesis of Zaker Iron - Apatite Deposit (Northeast of Zanjan)

N. Khanmohammadi; A. Khakzad; J. Izadyar

Volume 19, Issue 76 , January 2010, Pages 119-126


  Zaker iron deposit is located in the northeast of Zanjan city and is a part of Tarom volcano – plutonic belt in Azarbaijan – West alborze structural zone. The main rocks of the area consist of folded volcanic - volcanoclastic rocks including breccia tuff, lapilli-tuff and andezitic – ...  Read More

Original Research Paper
Determination of Non-Related Residual Oil (Bitumen) Present in Kangan Formation with Gas and Condensate in this Reservoir (South Pars Field)

A. Rajabi-Harsini

Volume 19, Issue 76 , January 2010, Pages 127-134


  Silurian shales (Sarchahan Formation), with high volume of organic matter, are the major source rock of Dehram Group reservoir in South Pars Gas Field. Residual oil (bitumen) were seen on some parts of Kangan Formation core. According to some reports, Lower Triassic (Kangan Formation) sediments is a ...  Read More

Original Research Paper
Fluid Pressure and the Lack of Chloritoid in Metapelites: Implications from Hamedan Area, Sanandaj- Sirjan Zone, Iran

A. A. Baharifar

Volume 19, Issue 76 , January 2010, Pages 135-140


  Chloritoid as one of the common metamorphic mineral in low to medium grade metapelites, is absent in metapelitic rocks of Hamedan area. Comparing with geochemical limitations for Chloritoid appearance in metapelites, whole rock composition of the area is suitable for Chloritoid formation. Since P, T ...  Read More

Original Research Paper
Investigation to MODIS Snow Cover Maps Usage in SnowmeltRunoff Modeling (Case Study: Karaj Dam Basin)

M. H. Mir Yaghoobzadeh; M. R. Ghanbarpour

Volume 19, Issue 76 , January 2010, Pages 141-148


  Snow cover was one of important parameter in snow melt runoff model. Because snow telemetry in mountainous basin is difficult, remote sensing image is an alternative object in snow cover mapping. Snow cover maps derived in remote sensing imagery is one of the important data entries in snow melt runoff ...  Read More

Original Research Paper
Structural Analysis of the Zagros Collision Zone, West Aligodarz

A. H. Sadr; Mohammad Mohajjel; A. Yasaghi

Volume 19, Issue 76 , January 2010, Pages 149-158


  The style of deformation changes from the hinterland (Sanandaj-Sirjan zone) to the foreland (Zagros) through the Zagros Orogen containing thick-skinned and thin-skinned deformation respectively. NW-SE trending thrust faults dipping to northeast have carried the older rock sequences to the surface. The ...  Read More

Original Research Paper
Jurassic and Cretaceous Magmatism in Marri – Asbkeshan Area, North –Northwest Doruneh – Kashmar Subzone (Khartouran)

R. Kohansal; S. Zolfaghari; M. Ghahraie - Pour

Volume 19, Issue 76 , January 2010, Pages 159-168


  The study area is a small part of the Sabzevar structural zone and confined between Semnan and Khorasan provinces. The oldest sedimentary rocks of this region are Middle Jurassic in age with horizons of calc-alkaline rhyolitic- rhyodacitic lavas in between. First appearance of alkaline basaltic lavas, ...  Read More

Original Research Paper
Estimation of Horizontal Location and Depth of Gravity Anomalies using Normalized Full Gradient (NFG)

H. Aghajani; A. Moradzadeh; H. Zeng

Volume 19, Issue 76 , January 2010, Pages 169-176


  Estimation of depth and horizontal location of anomalous bodies plays an important role for selecting exploration wells location. There are many methods for depth estimating, and most of them use high-pass filters. The Normalized Full Gradient (NFG) method is one of these methods that use Fourier series ...  Read More

Original Research Paper
The Role of Clay as a Natural Geological Barrier in Oil Pollution Control of Abadan Refinery

S. R. Shadizadeh; M. Zoveidavianpoor

Volume 19, Issue 76 , January 2010, Pages 177-186


  Abadan Refinery is located between Arvandrud and Bahmanshir rivers. These rivers supply urban, industrial and agricultural water of Abadan city. During the war between Iran and Iraq, leakage of large amounts of oil and its refined products from storage tanks, pipe lines, and refinery units of Abadan ...  Read More