In many parts of
the world, data obtained from geochemical exploration of stream sediments are
integrated with geological and geophysical data as one of the most efficient
methods of exploring potential deposits at regional and semi-detailed scales.
The aim of regional investigation is to study large areas to identify anomalies
that might have been arisen from increased concentrations of an element or some
elements in a region. A total of 78 geochemical samples were taken from Varamin
sheet to identify regions of anomalies. The following information was used to
perform a detailed geochemical exploration, in particular for geochemical
sampling. 1) 1:100,000 geological map of Varamin. 2) 1:50,000 topographic maps
of the region. 3) 1:100,000 airborne geophysical map of the region to locate
shallow intrusions and hidden faults. The sampling network was designed using
the above data and the analysis of 1:500,000 topographic maps. The sampling
density was higher around faults and apparent and hidden intrusions, and lower
in plains and lowlands.
Mohammadi, G. and Ashofteh, A. (2014) Facies and Sedimentary Environment of Cretaceous Units at North West of Dihuk-Tabas Region (Shotori Mountain Range). Journal of Middle East Applied Science and Technology (JMEAST), 6, 148-152.
Mohammadi, G., Gholinejad, M. and Ashofteh, A. (2013) Sedimentology and Sedimentary Environment of Mobarak Formation in Haraz Area—Mobarakabad Village, Iran. Journal of Environmental Treatment Techniques (JETT), 1, 165-167.
Mohammadi, G. and Ashofteh, A. (2014) Determining of Source Rock and Its Characteristics Using Organic Geo-Chemistry Derived from Parent Rock Evaluation, Separation and Columnar and Gaseous Chromatography on Cretaceous Units in Central Iran at Khor-Biyabanak. European Online Journal of Natural and Social Science (ES), 3, 151-160.
Mohammadi, G. and Ashofteh, A. (2014) Investigation and Usage Sedimentary and Depositioal Environment of Creataceous in South, East of Golpayegan Area. European Online Journal of Natural and Social Science (ES), 3, 179-185.
Mohammadi, G., Pursafari, M. and Ashofteh, A. (2014) The Eocene-Oligocene Facieses and Sedimentary Environments in Sardarreh Area, Garmsar. European Online Journal of Natural and Social Science (ES), 3, 86-94.
Mohammadi, G., Batmanghelich, E. and Ashofteh, A. (2015) Investigation of Sedimentology, Sedimentary Environment and Facies of Late Cretaceous in Farahzad Zone North of Mojen Shahroud. Current World Environment an International (CWE), 10, 1060-1071.