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)
Petrography and Alteration of Chehelkureh Copper Deposit: Mass Balance of Elements and Behavior of REE

M. Maanijou; I. Rasa; D. Lentz

Volume 17, Issue 67 , February 2008, , Pages 86-101


       Chehelkureh copper deposit is located in Kuh-e-Lunka area, 120 km NW of Zahedan (SE of Iran). The host rocks of mineralization are intercalated Eocene turbiditic greywackes, siltstones, and shales (flysch). They are folded with N-S trend and the eastern limb of this fold has ...  Read More

Geochemistry and Petrogenesis of Kuh-Shah Granitoidic Pluton(NE Baft)

Z. Sadeghi; H. Mehdizadeh; M. Sadeghian

Volume 17, Issue 66 , February 2008, , Pages 183-193


        Kuh- Shah granitoidic pluton is located in the NE part of 1:100000 geological map of Baft. Lithological composition of this pluton includes Alkali- feldspar granite, granite, granodiorite, quartzdiorite, diorite and gabbro. This pluton has been intruded in volcaniclastics  ...  Read More

Petrography, Geochemistry, Genesis and Tectonic Setting of Bibi Maryam Granitoid (Afzal Abad-Nehbandan)

S. S. Mohammadi; M. Vossoughi Abedini; M. Pourmoafi; M. H. Emami; M. M. Khatib

Volume 16, Issue 63 , March 2007, , Pages 60-71


  Bibi Maryam Granitoid body with 5 km2 exposure area is located in the east Iranian ophiolite mélange belt in Sistan suture zone. This intrusive body consists of tonalite- quartzdiorite and granodiorite. The main mafic minerals are hornblende and biotite in quartzdiorite-tonalite. Existence of ...  Read More

Quantification of the Spatial-Temporal Distribution of Aftershocks Associated with the 2006 Darb-e-Astaneh (Silakhor) Earthquake, western Iran

A. Zamani; M. Agh-Atabai

Volume 17, Issue 65 , March 2007, , Pages 70-79


  The 31 March, 2006 earthquake with Mw=6.1 destroyed villages in the Darb-e-Astaneh (Silakhor) region of the Lurestan province. The epicenteral area of this earthquake lies near the Main Recent Fault (MRF) and its right lateral mechanism indicates that it belongs to this fault zone. The main shock was ...  Read More

Stratigraphy and Micropaleontology of the Permian Rocks in NW Iran

R. Shabanian; Kh. Khosrow ‏Tehrani; I. Momeni

Volume 16, Issue 63 , March 2007, , Pages 98-109


  Various stratigraphical sections of the Permian rocks in the northwest of Iran (Azerbaijan) shows that this sequence consists of Doroud, Ruteh, and Nesen formations in the southern flanks and Doroud, Surmaq , Julfa and Ali-Bashi formations in Zal and Illanlu sections. The analysis and study of forminifera ...  Read More

Petrology and Tectonic Setting of Lakhshak Granodiorite, NW of Zahedan, Iran

A. Kananian; M. Rezaei-Kahkhaei; D. Esmaeili

Volume 17, Issue 65 , March 2007, , Pages 126-143


       The Lakhshak granitoid pluton which is located at 10 km northwest of Zahedan, has intruded into the Eocene flysch sediments with an elliptical shape and NW-SE direction. This pluton after emplacement has been cut by numerous dykes with NE-SW trend. These dykes comprised about ...  Read More

Estimation of Shear Wave Attenuation for Bam Earthquake, Strong Motion Records, Using Singular Value Decomposition

H. Ghasemi; E. Zabihi; A. Roshandel Kahoo; M. Zare

Volume 16, Issue 63 , March 2007, , Pages 124-129


  Strong motion records from the 2002 Bam Earthquake are used to investigate the shape of attenuation function in several frequencies ranging between 0.8 to 18 Hz.  Amplitude spectra of the records are inverted to find source scaling factor and attenuation parameters using Singular Value Decomposition ...  Read More

Local and Marginal Mineralogy of Alteration Haloes around Mineralized Veins of Masjeddaghi Area, Jolfa

A. Akbarpour; A. Rasa; M. Mehrpartou

Volume 16, Issue 63 , March 2007, , Pages 140-153


  The Masjeddaghi area is a part of Alborz-Azarbaijan Zone and located in the Jolfa 1:100000 geological map sheet. The oldest rock units cropped out widely in the south and northeast of the area belong to the Eocene flysch-type sediments. The other outcrops consist mainly of volcanic rock complex of andesites ...  Read More

Mineralogical-Geochemical characteristics of Potassic Granitoid in regard with other Granitoid in Kal-e Kafi complex (NE. Anarak )

J. Ahmadian; M . H. Emami; M. R . Ghorbani; M . Murata

Volume 16, Issue 63 , March 2007, , Pages 154-163


       Kal-e Kafi granitoid complex is a part of Central Iranian structural zone called Yazd block. This complex is composed of a wide spectrum of plutonic rocks ranging from gabbro to alkalike granite with age range of Upper Eocene-Lower Oligocene. Potassic granitoid shows geochemical ...  Read More