Abstract
Mining exploration in the Nyambaka area Northern Cameroon still at reconnaissance stage. In this study, ten active stream sediments samples were collected for geochemical survey. These stream sediments were analyzed by inductively coupled Plasma/ Mass Spectometry (ICP/MS), the data set obtained was transformed into a standard formation an excel database, and was subject to statistical treatment using IBM SPSS statistics 21 for 33 chemical elements to highlight the relationship between the stream sediments geochemistry, the region lithology, the geological processes and eventual primary mineralization. The data were analyzed using multivariate statistics. R-mode analysis produced a five-factor model behind multi-elements associations which account for 93.40% of the total variance in the data with the following metals associations: Sc-Mo-V-In-Ga-Cu-Cr, Ba-Sr-Ag-Cr-Cu-Co-Be-Ni-Y-Zn-V, Ga-Hf-Zr, Sn-Au, As-Cd. Sn-Au association indicates that Au mineralization is link to Sn mineralization. As-Cd, Cu Ga, In, Mo suggested that the paragenesis represent others sulphidation events that is barren with respect to Au. The spatial distribution of Sn-Au and As-Cd factors show that these factors are mores express in the centre part of the study area; they can be link to granitic rocks, defining a primary gold target. A detail mining investigation have to me carry out in that area to highlight the primary mineralizations.
Highlights
Geochemical mapping surveys have been conducted in different parts of the word at various scales to booster geochemical prospecting [1]
The spatial display of stream sediment geochemical data, and statistical treatment of the data can unravel element associations relevant to primary exploration in a region [3], and high mining potential area. these associations are useful in speculating on the source region lithology, geological processes and the nature of the primary mineralization, if any is present [4, 5, 1]
A 0.2g of each sample was analyzed for 65 chemical elements by inductively coupled Plasma/ Mass Spectometry (ICP/MS) at ‘’Bureau Veritas Laboratories Canada”
Summary
Geochemical mapping surveys have been conducted in different parts of the word at various scales to booster geochemical prospecting [1]. The spatial display of stream sediment geochemical data, and statistical treatment of the data can unravel element associations relevant to primary exploration in a region [3], and high mining potential area. The study area is a part of the Adamawa-Yadé domain, and was subject to geochemical, petrological, and geochronological studies of the basement rocks [6,7,8,9]. A few is known about mining index in the Adamawa- Yadé; and the study area is not yet subject to a geochemical exploration of stream sediments. The aim of this study is to do the mapping of the distribution of chemical elements in the study area watershed, to identify area of high mining potential for the boosting of mining exploration
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