International Scientific and Academic Research Publisher
Quartz veins, evidence of hydrothermalism and postmagmatic process for mineral deposit gold and sphalerite ore in KAAKA area (ADAMAWA- CAMEROON)
Author: Ntoumbé Mama*, Amaya Adama, Benjamin Ntieche, Fultang Secunda Nsang, Ntam Anchimbom
Published Date: 2024-08-01
Keywords: Quartz veins, Hydrothermal, post-magmatic, Mineral deposit, multispectral image, Adamawa-Cameroon.
Abstract:
The locality of M KAAKA is just part the rearrest zones of rich mineral deposits in Cameroon from its high demonstration of geological evolution. The geology of the mineral deposits of KAKAA show the heterogeneous of the rocks types and variable mineralization with the highest concentration in the sector. Quartz veins, and gold deposit that are sufficiently accessible to be studied in detail and seemed deserving of intensive study for the following reasons: It was well exposed; its mineralogy and paragenesis were sufficiently varied yet regular; and its environment was readily susceptible to interpretation. The application of multispectral imagery in mineral exploration and field work reveals the favor zone of mineralization. The distribution of the quartz veins shows a predominant NNE-SSW and NW-SE orientation, similar of the multispectral images orientation, which correlates with the presence of gold mineralization associated with the sphalerite, suggesting strong control by structural elements.. The mineralized quartz veins in KAKAA range between 2 to 10 centimeters, fractured, and characterized by mineral assemblage: quartz ± gold ± sulphide ± pyrite ± chalcopyrite ± hematite ± limonite. They commonly display a simple mineralogy of pink feldspar, quartz and mica are also associated with vein quartz. Numerous quartz veins present the high hydrothermal process which affected the host rocks type characterized by a fine grain quartz- muscovite - biotite and sericite ± chlorite. The ideal target of this work was to identify potential zones associated to gold mineralization and also to evaluate if the mineralogical composition of rock indicates the potential mineralization of the study zone. Detailed relations observed along the quartz veins and sphalerite veins zone suggest that mineralization took place toward the end of the late period of faulting during the post-tectonic event in Adamawa domain through post-magmatic emplacement combined with hydrothermalism.