Geochemistry and Radioactive Mineralization Inspections of the Pegmatite Bodies Associating Variable Granitic Environs, Abu Hadeida Area, North Eastern Desert, Egypt.

Document Type : Original Article

Author

Nuclear Materials Authority. P.O. Box 530, El-Maadi, Cairo, Egypt.

Abstract

Two types of pegmatite (Mineralized and non-mineralized) pegmatite are identified in Abu Hadeida area. Mineralized
pegmatite characterized by high contents of trace, rare earths, uranium, and thorium. Mineral associations include
uranophane, autunite and thorite. Non mineralized pegmatite has low contents of trace and radioelements. REE patterns
of the two pegmatites show M-W tetrad effects suggesting the dual effect of late stage hydrothermal solutions and
surficial or underground water. Difference in pegmatite properties despite their presence in the same rocky environment
may be due to the difference in the magma melt which the mineralized pegmatite emerged, where mineralized pegmatite
bound to magma rich unlike normal type.

Keywords

Journal of Basic and Environmental Sciences
Volume 8, Issue 1
January 2021
Pages 1-14

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