Original Research Paper
2. Alteration Mapping at Saridoon Porphyry Copper Prospect Using Short Wave Infrared Spectrometry (PIMA), ASTER Satellite Image and XRD

Ahmad Kazemi Mehrnia; I. Rasa; S. Alirezaei; H. Asadi Harooni; J. Karami

Volume 20, Issue 79 , January 2011, Pages 3-12


  The Saridoon porphyry system is located 3 km northeast of Sarcheshmeh copper mine. Alteration mapping of the area was carried out using PIMA (Portable Infrared Mineral Analyzer) analysis of 145 samples, ASTER satellite images, XRD analysis of 22 samples, field observations and petrographic studies. The ...  Read More

Original Research Paper
3. The Study of Dorouneh Fault System's West Termination in Jandaq-Talmessi Area

M. Esterabi - Ashtiani; A. Yassaqi; H. R. Javadi; M. Shahpasandzadeh; M. R. Ghassemi

Volume 20, Issue 79 , January 2011, Pages 13-20


  Dorouneh Fault is located in the north of Central Iran Microplate with left-lateral strike-slip mechanism and plays an important role in the formation of Iran plateau's morphology. Dorouneh fault, with bend geometry and 900 km length, extends from HyrmandRiver in the Afghanistan border to Anarak area ...  Read More

Original Research Paper
4. Petroleum System Modeling of Lower Paleozoic in Persian Gulf Basin

S. Salehi Rad; S. Sherkati; F. Taati Qoaryem; M. H. Noroozi

Volume 20, Issue 79 , January 2011, Pages 21-30


  The Paleozoic sediments are noteworthy for many of petroleum geologists to research within Arabian Plate during last decades. Significant values of oil and gas was generated from the Silurian source rock in this area. This source rock has been modeled by commercial software's (PetroMod and Genex) in ...  Read More

Original Research Paper
5. Characterization of Daleer Phosphate Rock Properties for Mineral Processing

S. Khoshjavan; B. Rezai; A. Amini

Volume 20, Issue 79 , January 2011, Pages 31-38


  In this research, characterization studies of sedimentary phosphate rock from Zanjan Dalir area with respect to processing are investigated. According to mineralogical studies, phosphate ore (Collophane 28.13%), sedimentary mineral and the predominant constituents of the gangues were Calcite (43.53%), ...  Read More

Original Research Paper
6. Palaeoecology of the Late Devonian Palynomorphs, Southwest Damghan

S. H. Hashemi; M. Fahimi

Volume 20, Issue 79 , January 2011, Pages 47-54


  The Upper Devonian sequences in vicinity of Darvar, southwest Damghan comprise alternation of conglomerates, quartzites, sandstones, siltstones, shales, with fossiliferous limestone intercalations unconformably overlying the Ordovician strata and gradually preceding carbonates of the Lower Carboniferous ...  Read More

Original Research Paper
7. The Survey of Physical-Chemical Environment in Sungun Copper Porphyry Deposit with the Using of Minerals Properties in the Copper Porphyry Deposits (North East of Tabriz)

M. Mohamadian; M. Boomeri; A. Ahmadi; A. A. Moridi Farimani; H. Daglas; M. Jamali

Volume 20, Issue 79 , January 2011, Pages 47-54


  Sungun Porphyry Copper Deposit is located about 130 km to the northeast of Tabriz, northeast Iran. This deposit contains 796 million tons of ore with 0.61% Cu, 0.01% Mo, 0.016 ppm Au, 9.75 ppm Bi and Re (0.09 wt% of molybdenite). This research studies the physico-chemical environment using the chemical ...  Read More

Original Research Paper
8. An Investigation into the Activity of the Neyshabour Fault, Khorasane Province, Iran

M. Fattahi; S. Rostami Mehraban; M. Talebian; A. Bahroudi; J. Hollingsworth; R. Walker

Volume 20, Issue 79 , January 2011, Pages 55-60


  Neyshabour (approximately 200,000 pop.) lies on the southern margin of the Binalud mountains in NE Iran.  The city has been destroyed four times by major historical earthquakes (in 1209, 1270, 1389 and 1405 A.D.).Three large faults occur in the region.  The Binalud and North Neyshabur faults ...  Read More

Original Research Paper
9. Determination of Ground Motion Attenuation Relationship in the Tehran Region

Kh. Motaghi; A. R. Ghods; H. R. Siahkoohi

Volume 20, Issue 79 , January 2011, Pages 61-66


  Study of ground motion attenuation in Tehran region is a very important aspect of determining a more precise hazard map of the city. For the last 10 years, three short period seismic networks have been operating in the study region by the Institute of Geophysics, University of Tehran (IGUT).  We ...  Read More

Original Research Paper
10. Geochemical Studies of Permian Bauxite-Kaolin Deposits in North of Saqqez, Kordestan Province

A. Abedini; A. A. Calagari

Volume 20, Issue 79 , January 2011, Pages 67-74


  Depositional cessations during Permian period in north of Saqqez were associated with development of lenses of bauxite-kaolin ores in Ruteh carbonate formation. In one of these lenses considered, six lithologic units were recognized which are from bottom to the top, (1) dark brown red, (2) violet, (3) ...  Read More

Original Research Paper
11. Structural Evidences of Continental Transpression in the Birk Area(SE Iran)

E. Moosavi

Volume 20, Issue 79 , January 2011, Pages 75-82


  Some structural evidences of continental transpression are studied and compared with experimental modeling results in the Birk area. These evidences are: fold axes have a double plunging en-echelon pattern. Fold axes mean orientations and fracture cleavages strike form angles less than 45 degrees with ...  Read More

Original Research Paper
12. Nannostratigraphy of Sarcheshmeh and Sanganeh Formations, West of Kopet Dagh Basin (Takal Kuh Section)

A. Mahanipour; A. Kani; M. H. Adabi; S. N. Raisossadat

Volume 20, Issue 79 , January 2011, Pages 83-94


  The Lower Cretaceous sedimentary succession of western Kopet Dagh Basin (Sarcheshmeh and Sanganeh formations) was investigated. Taking into account the considerable thickness of the studied section (1668 m) and the possibility of recording all the important events, determination of calcareous nannofossil ...  Read More

Original Research Paper
13. Validation Study of Linear and Nonlinear Kriging Estimator on Ore-waste Grade Control Process

M. Jalali; Gh. R. Rahimipour; M. R. Dianati; M. Taghvayinejad

Volume 20, Issue 79 , January 2011, Pages 95-100


  Facing to unsatisfied results in grade-tonnage estimation especially in dynamic programming is always being a great problem in mining revenue operation. If the problem is to estimate a grade point only, linear kriging estimators can show accurate results. But if target is to achieve to probability distribution ...  Read More

Original Research Paper
14. Geochemistry of Major Elements of Silisiclastic Deposites from Shirgesht Formation, in Kalmard Block, Centeral Iran, Implications for Provenance, Tectonic Setting,and Weathering Intensity

A. Bayet goll; M. Hosseini-Barzi

Volume 20, Issue 79 , January 2011, Pages 101-112


  Geochemical analysis of major elements from 12 sampels from Shirgesht Formation sandstones and shales with Ordovicien age in sections of kuh-Asheghan and Kuh-Rahdar at Kalmard block in Central Iran zone, and plotting these data on silisiclastic rocks classification diagrams, show that they are quartzarenite ...  Read More

Original Research Paper
15. Magmatic Origin and Tectonic Setting of the Eocene - Oligocene Volcanic and Plutonic Rocks from the Zand-Abad Area, NW Ahar (Tarom-Qaredagh Zone)

Z. Azimzadeh; M. H. Emami; R. Hajialioghli

Volume 20, Issue 79 , January 2011, Pages 113-120


  The Zand-Abad area is located in NW Ahar of north Azerbaijan. Magmatic rocks in this area consists of granitoids including monzogranite, granodiorite, monzonite and syenogranite as well as mafic rocks mainly diorite and associated extrusive rocks as andesite, trachyandesite, dacite, trachydacite, rhyolite. ...  Read More

Original Research Paper
16. Mapping of Hydrothermally Altered Areas Using ASTER and ETM+ Data in Northern Half of Baft Geological Map

F. Masoumi; H. Ranjbar

Volume 20, Issue 79 , January 2011, Pages 121-128


  The study area covers the northern half of the Baft 1/100000 geological map in Dehaj-Sarduiyeh volcanic-sedimentary and ophiolitic belts. The aim of this research was application of multispectral ASTER and ETM+ data for determining the altered areas by using different image processing techniques. In ...  Read More

Original Research Paper
17. Ranking of Iran Minerals using Analytical Hierarchy Process

R. SH. Shahabi; R. Kakaie; M. H. Basiri

Volume 20, Issue 79 , January 2011, Pages 129-136


  Mineral Resources which can be regarded as a best potential opportunity to sustainable development of the country. Consequently appropriate investment in exploitation of these reserves can achieve high value added to the most industries. Therefore, it is necessary to recognize the priority of minerals ...  Read More

Original Research Paper
18. Investigation on Confined Aquifer & its Role on Subsidence Occurrence in Hashtgerd Plain

A. Shemshaki; Y. Mohammadi; M. J. Bolourchi

Volume 20, Issue 79 , January 2011, Pages 137-142


  Based on recent research by geological survey of Iran (GSI), an extensive subsidence area was observed in Hashtgerd plain (Tehran province). The geographical position of this area is 35° 47' 45" to 35° 03' 05" N and 50° 29' 05" to 50° 54' 28" E. The maximum and mean rates of this subsidence ...  Read More

Original Research Paper
19. Chahmir Zn-Pb Deposit, a Typical Selwyn-Type (Vent Proximal) Sedex Deposit, Bafq Basin, Central Iran

A. Rajabi; E. Rastad; N. Rshidnejad Omran; R. Mohammadi Niaei

Volume 20, Issue 79 , January 2011, Pages 143-156


  Chahmir Zn-Pb deposit is one of several sediment-hosted Zn-Pb deposits (e.g., Koushk, Zarigan, Dareh Dehu & Cheshmeh Firuzeh) located in southeast of Bafq basin hosted within a Early Cambrian volcano-sedimentary sequence, simultaneous with global Cambrian ocean anoxic event, forming in a rift environment. ...  Read More

Original Research Paper
20. Provenance of the Givetian-Frasnian Sandstones in the Kuh-e-Tizi Section (Northeastern Kerman), Central Iran

S. H. Hejazi; M. H. Adabi; S. R. Moussavi Harami

Volume 20, Issue 79 , January 2011, Pages 157-164


  The Givetian-Frasnian sandstones in the Kuh-e-Tizi section (25 km NE Kerman), unconformably overlie the Upper Cambrian Kuhbanan and underlie the Lower Carboniferous Hutk Formations respectively, in southeastern Central Iran. Petrographical data show that these sandstones are well-sorted, sub-angular ...  Read More

Original Research Paper
21. The Significance of Parameters Used for Self-Organized Tectonic Zoning of Iran

Ahmad Zamani; S. Farahi Ghasre Aboonasr

Volume 20, Issue 79 , January 2011, Pages 165-170


  The Iranian plateau is one of the active tectonic regions on the earth. Non-uniformly distribution of deformation and repetitive activity of faults have cause a complex pattern of tectonic and seismotectonic activity of Iran. Therefore, in order to study the seismic and geological behaviors of different ...  Read More

Original Research Paper
22. Sequence Stratigraphy of Carbonate–Evaporite Successions of Dashtak Formation in Aghar#1and West Aghar#1 Boreholes in Aghar Gas Field

M. Khoshnoodkia; H. Mohseni; M. Hajian

Volume 20, Issue 79 , January 2011, Pages 171-182


  Carbonate – evaporates intervals of Dashtak formation is an important cap rocks in Zagros basin. Sequence stratigraphic analysis of Dashtak Formation in two wells (Aghar#1; West Aghar#1) was investigated in sequence stratigraphic framework. Data obtained from petrographic examinations of thin sections ...  Read More

Original Research Paper
23. Biostratigraphy Study of Gurpi Formation in Poldokhtar Section (Kuh-Soltan Anticline) based on Calcareous Nannofossils

M. A. Sina; A. Aghanabati; A. L. Kani; A. R. Bahadori

Volume 20, Issue 79 , January 2011, Pages 183-188


  Calcareous nannofossils are suitable for biostratigarphical studies since they are abundant, planktonic, rapidly evolving and largely cosmopolitan, especially in the late Cretaceous. In this regards, 131 microscopic slides from shale and marl sediments of Gurpi formation of Poldokhtar section with thickness ...  Read More