Maps of Industrial Rocks and Minerals of Angola: CARMINA Project. Products obtained and main results

Abstract

Recognizing the pivotal role of the sector in the socioeconomic development of the nation, the Government of the Republic of Angola has actively endorsed the establishment of a geological-mining cartography. This initiative, employing modern methodologies, is a fundamental tool for strategically planning mineral resource exploitation. The outcomes of this initiative underscore the remarkable diversity of substances and the considerable significance of the studied deposits. In the domain of Industrial Rocks and Minerals, specifically within the CARMINA subprogram, a comprehensive compilation of 30 geological-mining maps has been generated. These maps delineate Areas of Mining Potential, and are accompanied by corresponding reports that encapsulate the research findings and technical-analytical outcomes of the investigated regions. The undertaken efforts have unveiled the substantial potential for Natural Stone, featuring novel varieties of granites, marbles, and “exotic” rocks such as amazonites, sodalites, pegmatites, and carbonatites. The last refered rock types are particulary interesting since they serve as sources for industrial rocks and minerals, encompassing valuable resources like lithium and Rare Earths. Thus, these resources exhibit promising prospects in the context of the energy transition. Additionally, noteworthy deposits include high-purity quartz in Equimina region, feldspars in Giraúl area, kaolins and clays within the Cunene Anorthositic Complex. The systematic creation of mineral resource maps, along with the associated research, contributes to the provision of up-to-date information regarding the geological-mining potential of the studied territory.