Geology and Gold Prospecting in the Ariab Mining Lease Area, Northeast Sudan, Y. S. A. Mohamed
- Version
- Download 1
- File Size 25.96 MB
- File Count 2
- Create Date 13th May 2025
- Last Updated 13th May 2025
| File | Action |
|---|---|
| Conference Abstracts and Biography.pdf | Download |
| Conference Abstracts and Biography.pdf | Download |
Y.S.A. Mohamed
Ministry of Mining and Energy
Sudan
Purpose: The study area for this research lies within the Ariab Mining Company lease area, about 650km northeast of Khartoum, and 250km west of Portsudan. A specific area was selected for gold prospecting and detailed geological mapping.
Method: Pre-fieldwork consisted of desk studies, the preparation of a base map using a geo-referenced Satellite image, determination of way points for sampling, measurements and field observations. During the fieldwork, chips of mineralised rock samples were collected
from various styles of mineralisation and alteration zones; these included quartz veins, massive sulphi- des, gossans, and siliceous barite, in addition to alluvium samples. Collected samples were prepared for geochemical analysis, as well as thin and polished section studies.
Findings: The geological observations showed the area is underlain by metavolcanic rocks intruded by granodiorite, as well by felsic dike and quartz veins. The results of geochemical analysis indicated the presence of gold in quartz veins from the Tammani area ranging from 0.1-8.1 ppm, and in gossan from the Odoruk area amounts of 0.1-7.1ppm. The trace elements analysis of As, Cd, Sb, and Mo revealed a perfectly positive correlation with Au. In addition, there was a weak positive correlation between Au and Bi, Cu, and a weak negative correlation between gold and Zn, Ag. A microscopic study revealed the presence of opaque minerals of pyrite, chalcopyrite, Covellite, and gold. An alluvium sample for heavy minerals analysis showed the presence of gold.
Citation: Mohamed. Y. S. A.: Geology and Gold Prospecting in the Ariab Mining Lease Area, Northeast Sudan. In Allam Ahmed(Ed.): Home-Books-Proceedings-SDC, Vol. 1, pp. 13. WASD: Brighton, United Kingdom.