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 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

https://doi.org/10.22071/gsj.2019.84493

Abstract
  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

Palaeoenvironmental conditions of Gheshlagh coal deposits (Eastern Alborz) based on evidences of petrography and facies

T Rabani; N Taghipour; R Aharipour

Volume 25, Issue 99 , June 2016, , Pages 271-280

https://doi.org/10.22071/gsj.2016.40918

Abstract
  Gheshlagh district contains coal deposits in a large syncline in Shemshak group sediments in East Alborz. To determine the palaeoenvironmental setting of the coal deposits based on organic and mineral components, eleven samples from coal seams from four active mines are collected. Minerals such as quartz, ...  Read More