ahmed_abdelrashid

Ahmed Abdelrasheed El Sheikh

Lecturer - Lecturer

Faculty of science

Address: Sohag Faculty of Science - Sohag University

2

Like

Dr Ahmed A. ElSheikh is a lecturer of economic Geology and Mineral deposits in Department of Geology Faculty of Science  Sohag University


2023-06-20 14:29:09 | Keywords adakitic nature,
Magmatism  and  Related  Mineralizations  in  Wadi  Hammad,  North  Eastern Desert, Egypt
Abstract: Mineralization in the Wadi Hammad area is represented by polymetallic vein-type and occurs in four modes, they are mineralized main quartz vein, silicified shear zone, associated hydrothermal alterations, and breccia zones. They mainly occur in the contact between Dokhanvolcanics and Younger granites and are confined to and controlled by the Wadi Hammad shear zone. The study revealed that Dokhan ... Read more

2023-06-20 14:26:04 | Keywords Hammad deposit,
Intrusion-related  Low  Sulphidation  Gold  Mineralization,  Wadi  Hammad Area, North Eastern Desert, Egypt
Abstract: Gold mineralization in Wadi Hammad is one of few gold occurrences located in the North Eastern Desert of Egypt, occurring at the boundary between the post-tectonic Younger granite and Dokhan volcanics along a north-south (N-S) trending shear zone between them. The main mineral assemblages include arsenopyrite-pyrite-chalcopyrite-galena-sphalerite and sphalerite-gold-covellite-cerussite-pseudomorphic iron oxides. Mineralogical and geochemical studies indicate that the mineralization is ... Read more

2023-06-20 14:22:24 | Keywords Wadi Fatira – Ophiolitic,
A  sheared Ophiolitic Mélange: Occurrence, Petrographical And  Geochemical  Studies,  Around  Wadi  Fatira,  North  Eastern  Desert, Egypt.
Abstract: The present study provides a new perspective on the nature and deformational development of the basement rocks in the Fatira area. The goal of the project is to characterise the mélange rocks in the area from a petrographic and geochemical standpoint. Field, petrographic and geochemical studies of the Neoproterozoic rocks in the Wadi Fatira area indicate that these rocks ... Read more

2023-06-20 14:18:20 | Keywords
Geochemical and geochronological characteristics of the Um Rus granite intrusion and associated gold deposit, Eastern Desert, Egypt
The Um Rus tonalite-granodiorite intrusion (w6km2 ) occurs at the eastern end of the Neoproterozoic, ENE-trending Wadi Mubarak shear belt in the Central Eastern Desert of Egypt. Gold-bearing quartz veins hosted by the Um Rus intrusion were mined intermittently, and initially by the ancient Egyptians and until the early 1900s. The relationship between the gold mineralization, host intrusion, and regional ... Read more

2018-09-23 07:49:43 | Keywords Kalabsha, Kaolin deposits, PR,
Provenance studies of Kalabsha kaolin deposits, Egypt: a petrographical and geochemical approach
The present study focuses on the kaolin deposit in Kalabsha area south Western Desert of Egypt in an attempt to determine its possible source, tectonic setting, and weathering history by means of integrated petrographical and geochemical approaches. The petrographical study was worked by microscopic investigation and supported by X-ray diffraction analysis. X-ray fluorescence and inductively coupled plasma-mass spectrophotometry methods were ... Read more

2018-09-05 12:41:56 | Engneering Geology part I
Lab 6
The practical part of metamorphic rocks Read more

2018-09-05 12:39:45 | Engneering Geology part I
Lab5
The Practical part of sedimentary rocks Read more

2018-09-05 12:37:58 | Engneering Geology part I
Lab 4
The practical study of igneous rocks Read more