Mineralogy of Graphite from the Graphite-Bearing Schists of Wadi Lawi, South Eastern Desert, Egypt
作者机构：Geology Department Faculty of Science Menufiya University Shebin El-Kom Mnufiya Egypt
出 版 物：《Journal of Geological Resource and Engineering》 (地质资源与工程（英文版）)
年 卷 期：2017年第5卷第4期
页 面：178-187页
学科分类：07[理学]
主 题：Graphite Wadi Lawi ophiolites mineralogy structural state.
摘 要：The graphitized schists of Wadi Lawi, South Eastern Desert, Egypt, had been investigated to exhibit the mineralogy of thegraphitic material, and its structural state, to reveal its conditions. The graphite included quartz-plagioclase-actinolite-graphite schistand actinolite-talc-chlorite-graphite schist. It occurs as bundles and laths, showing Rmax in oil from l 0 to 14. Magnetite is the majorassociate with graphite or disposed in the groundmass. XRD, DTA patterns, TEM and TMD investigations of separated graphiticmaterial, show that it ranges in its structure from semi-graphite （graphite-dl） to graphite （full-ordered graphite）. 613 C （PDB） with anaverage of-23.06%o, in addition, the IR investigations for these graphitic materials indicate their organogenic origin. The present authorsuggests the possibility that Wadi Lawi graphitic material is related to post-depositional contaminations. XRD and DTA can alsodeclare that the graphitic materials were formed under conditions ofgreenschist facies in a temperature range of 400 to 600 ℃, under apressure of 4 to 6 kP.
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