Details

Autor(en) / Beteiligte

• Kalimenze, John Desderius
• Abu, Mahamuda
• Mvile, Benatus Norbert

Titel

Soil geochemistry and multivariate statistical assessment of Copper–Gold-PGEs mineralization in parts of Singida Region of the Tanzania Craton, Tanzania, East Africa

Ist Teil von

• Arabian journal of geosciences, 2023, Vol.16 (1), Article 59

Ort / Verlag

Cham: Springer International Publishing

Erscheinungsjahr

2023

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Multi-element mineralization of copper (Cu), gold (Au), and precious group of elements (PGEs) in the Kishapu-Igunga-Iramba areas in the central parts of Tanzania was evaluated in the study. The main aim was to characterize the mineralization with a focus on the pathfinder elements and the controls of the mineralization in the area through soil geochemistry and multivariate statistics and multivariate linear regression (MLR) methods. From the multivariate statistical methods applied, the Cu, Au, and PGEs mineralization in the area is associated with arsenic (As) and antimony (Sb). The Cu and Au occurrence in the area is a likely porphyry Cu-Au from their strong association. The mineralization (multi-elements) is strongly controlled by mafic–ultramafic rocks and volcaniclastics in the northern, southern, and central parts of the study area. From the MLR, Cu is strongly predicted by Zn, Ni, and Au with an error of ± 0.230, with Pd being predicted by only Pt and vice versa, with an error margin of ± 0.001. Au on the other hand is predicted by Cu, Fe, and Cr with an error margin of ± 0.473. The style of mineralization of these elements is comparable to their occurrence in the Neoproterozoic setting and the Paleoproterozoic Ubendian belt of Tanzania as well as the PGEs occurrence in South Africa and Canada. Coupling MLR with hierarchical cluster analysis and factor analysis brings out a more definitive elemental association to precious minerals occurrence from the study and is strongly recommended.