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)
A new insight of stratigraphic column, facies variation, and sedimentary environment of the Shemshak group in Parvar-Kavard section, NE Semnan, Iran

H. Hoseini; N. Kohansal Ghadimvad; M. Zamani Pedram; M. R. Majidifard; A. R. Shahidi

Volume 28, Issue 110 , December 2018, , Pages 287-298


  Accumulation of Shemshak group lithofacies have been started during Early-Cimmerian orogeny from middle of Late-Triassic and ended with Middle- Cimmerian discontinuity dating Millde-Jurrasic. So the mostly Siliciclastic and occasionally Marin lithostratigraphic unite has evidences of two major tectonic ...  Read More

Geology and structural pattern of Anarak-Talmessi sedimentary basin

M Shayanfar; M Ghorashi; S.J Ahmadi; A Saeedi; A.R Shahidi

Volume 25, Issue 98 , March 2016, , Pages 315-320


  The existence of a sedimentary basin with a large thickness of Neogene sediments(Lower Red Formation) in the Anarak-Talmessi region of central Iran with a basement of Precambrian metamorphic rocks, high rate of erosion processes, and more importantly its safety necessity led us to define the structural ...  Read More

Extension Analysis in Shemshak Sedimentary Basin (Balladeh Valley, Central Alborz)

M Mirzaei Souzani; A Shahidi; R Ramezani; F Alizadeh Sevari

Volume 24, Issue 95 , June 2015, , Pages 39-48


  In order to survey the extensional forces dominated in central Alborz since Late Triassic (Norian) to Middle Jurassic (Early-Bajocian), synsedimentary normal and strike-slip fault systems in Balladeh valley which contains significant distribution of Shemshak Group have been studied. Analysis of σ3 ...  Read More

The Magnetic Characteristics of Sandstone Rocks of Shemshak Group in Response to Application of Geomagnetic Methods

Z Hamidi Beheshti; H Alimohammadian; M Talebian; A Shahidi; M.R Ghassemi

Volume 24, Issue 95 , June 2015, , Pages 153-164


  Geomagnetism is one of the most applied techniques of geophysics in geology. Today, this method is applied in different disciplines such as Magnetic fabric of rocks, palaeomagnetism and environmental magnetism. Each of these magnetic methods is suitable for a particular lithology. Therefore, the potential ...  Read More

Geotechnical Behavior of Tehran Alluvial Deposits against Possible Seismic Events

F. Rezaie; H. Nazari; S. Rahmanian; A. R. Shahidi

Volume 24, Issue 94 , March 2015, , Pages 35-40


  Due to the fast urban developing and construction of surface and sub-surface structures such as several subway lines, requiring the geotechnical studies on these structures is increasingly emphasized. The metropolitan Tehran, in south of the Central Alborz, lying on the set of Quaternary alluvial deposits ...  Read More