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Abstract
The Central Wadi Kid area is located in SE Sinai. It constitute an important part of the Precambrain of southern Sinai, over which there is much debate concerning the genesis of the metasedimentary and metavolcanic rocks in particular and their relation to the Precambrain of the Eastern Desert of Egypt.
In order to achieve the goal of proposing a geologic history of the study area, intensive field work, mapping, microfabric studies, in addition to bulk chemistry and chemistry of selected minerals, were carried out.
The map prepared on scale 1: 40 000 revealed that the study area comprises a tectono-stratigraphic pile that is composed of a metasedimentary unit; two, lower and upper, metavolcanic units; an extensive tectonic mélange; several pulses of plutonic intrusions; and two sets of older basic to acidic, and younger dyke swarms. The laminated, porphyroblastic schists, comprising metapelites with two marker horizons of chiastolite schists, metacalcpelites with marble lenses, and quartzites, associated with metagreywackes, polymictic metaconglomerates and pebbly schists. Primary structures are preserved. Unmetamorphosed dioritic sills intercalate the MS which host sporadic, mesoscopic intraformational and exotic komatitic/boninitic-like blocks, as well as smaller extraformational clasts.