Open AccessGeochemical and Geotectonic Setting for Island Arc Related rocks on Um Taghir Area, Central Eastern Desert, Egypt
Author(s) -
Hamdy A. Awad,
Aleksey V. Nastavkin
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/720/1/012049
Subject(s) - geology , island arc , dike , geochemistry , sequence (biology) , schist , volcano , magmatism , arc (geometry) , basalt , tectonics , metamorphic rock , terrain , paleontology , subduction , geography , genetics , geometry , mathematics , cartography , biology
Um Taghir area located in theCentral Eastern Desert of Egypt a long road of Safaga-Qena. Itis represented by island arc related rocks that are intruded by late to post tectonic magmatism. The island arc belonging to oceanic terrain, divided into metavolcaniclastic and metagabrroic rocks. Metavolcanoclastic sequence is represented as the older rock unit of the study area,it is noted that metavolcanoclastic intruded by metagabbro. Island arc assemblage is classified into schist and metagabbro that give clean different of their mineralconstituents according to petrographical studies. Geochemically , the investigated rock units and most of dikes have sub alkaline nature. Tectonically , metavolcanoclastic sequence is related to back arc basin basalts, while metagabbro related to volcanic arc.