Ore
minerals in Nile (Alluvial) placer gold, Aswan High Dam reservoir, Egypt
Mahmoud M. Hassaan, M.
ElDardir1, A.M. Sanad2, I. ElKashif2 and M.Y.
Hassaan2.
Geology Dept. Fac. Sciences, EIAzhar, Univ., 1lnst. Oceanography
and Fisheries Aswan, Egypt., and 2Physics Dept. Fac. Sciences,
EIAzhar Univ., Cairo, Egypt. |
The XRD and Mossbauer spectrometric analysis of the heavy magnetic minerals of the Nile
(alluvial) placer gold accumulation in the Aswan High Dam Reservoir indicates presence of
silver titanium sulfide, silver sulfide sulfate, mercury zinc sulfide (meta-cinnabar) and
silver sulfate. Gold is present as telluride minerals and entrapped in the magnetite,
meta-cinnabar, pyrite, maghemite, and iron oxides after pyrite.
The XRD analysis of the heavy feebly to non-magnetic fractions indicates presence of gold
magnesium and gold silicide.
These detected gold and silver ore minerals in the High Dam Lake sediments between Malik
ElNaser and Amka favour a promissing placer gold.
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