TITLE:
The Determination of Promising Mineral Zones in 1:100,000 Varamin Sheet Based on Geochemical Studies (Heavy Minerals)
AUTHORS:
Seyyed Reza Mortazavi, Ghodratollah Mohammadi
KEYWORDS:
Geochemical, Heavy Minerals, Varamin, Promising Mineral, Determination
JOURNAL NAME:
Open Journal of Geology,
Vol.6 No.8,
August
10,
2016
ABSTRACT: 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.