Geochemical and Petrological Survey in Northern Ethiopia Basement Rocks for Investigation of Gold and Base Metal Mineralization in Finarwa Area and Its Surrounding Southeast Zone of Tigray, Ethiopia
Journal Title: American Journal of Geospatial Technology (AJGT) - Year 2022, Vol 1, Issue 1
Abstract
The study is accompanied in northern Ethiopian basement rocks, Finarwa area and its surrounding areas, south eastern Tigray. The objective of the study is to amendment field geology, mineralogy, and geochemical characteristics to deliberate about the gold and base metal mineral potential investigations. From the field observations the geology of the area haven been described and mapped based on mineral composition, texture, structure and colour of both fresh and weather rocks. The ore mineral under microscope are commonly base metal sulphides pyrrhotite, Chalcopyrite, pentilandite occurring in variable proportions. Galena, chalcopyrite, pyrite and gold mineral are hosted in quartz vein. The base metal sulfides occur as disseminated, vein filling and replacement. Geochemical analyses result from inductively coupled plasma mass spectrometry (ICP-MS) and atomic absorption spectrometry (AAS) indicates the threshold of geochemical anomalies is directly related to the identification of mineralization information. From samples stream sediment samples and the soil samples indicated that the most promising mineralization occur in the prospect area are gold(Au), copper (Cu) and zinc (Zn). This is also supported by the abundance of chalcopyrite and sphalerite in some highly altered samples. The stream sediment geochemical survey data shows relatively higher values for zinc compared to Pb and Cu. The moderate concentration of the base metals in some of the samples indicates availability base metal mineralization in the study area requiring further investigation. In addition the sulphide concentrations in the research area are related to different stages of mineralization and are controlled both by structures and lithology. They are well established in the slate-phyllite and metavolcanics along the shear zones and faults as disseminated and vein filling. The rock and soil geochemistry shows significant concentration of gold with maximum value of 0.33ppm and 0.97 ppm in the south western part of the study area.
Authors and Affiliations
Siraj Beyan Mohamed
Keywords
Related Articles
- EP ID EP723176
- DOI https://doi.org/10.54536/ajgt.v1i1.404
- Views 25
- Downloads 0
Combating the Threat of Crime in the Security of the Bauchi Local Government Area Using Geospatial Technology
The dynamics of crime and its nature expose the State to the security threat. The types of criminal activities perpetrated within the communities, including armed robbery, kidnapping, and car and motorcycle snatching, ar...
Geochemical and Petrological Survey in Northern Ethiopia Basement Rocks for Investigation of Gold and Base Metal Mineralization in Finarwa Area and Its Surrounding Southeast Zone of Tigray, Ethiopia
The study is accompanied in northern Ethiopian basement rocks, Finarwa area and its surrounding areas, south eastern Tigray. The objective of the study is to amendment field geology, mineralogy, and geochemical character...
Geospatial Analysis of the Spatio -Temporal Growth of Kwali Area Council, Federal Capital Territory, Abuja
This study analyzed the spatio-temporal growth of Kwali Area Council in Federal Capital Territory Abuja, Nigeria from 1998 to 2017. The study used Landsat Thematic (TM) of 1997, Landsat Enhanced Thematic Mapper Plus (ETM...
Comparative Assessment of Comminution Energy Equations (Models) Using Some Selected Legumes, Tubers, Cereals and Sea Food
The quest to predict more precisely energy that is just enough to achieve closely any desired final particle size of food material subjected to comminution is necessary. This is to avoid energy wastage, obtain finer prod...
Monitoring of Coastal Geo-Environment for Hazard Mitigation: A Case Study of Machilipatnam Region, Andhra Pradesh, India
The coastal zone is highly dynamic, which responds in various ways to human interventions and extreme weather events. Tropical storms cause enormous damage to the coastal region and its communities during landfall. Many...