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Set of the coordinates and map of the concession.

Digital Elevation Model (DEM) of Guinea, showing the location of the occurrences of diamonds, kimberlitic dykes and kimberlitic pipes. Image elaborated based on the information of USGS (United States Geological Survey). Occurrences of diamonds are observed within the concession following the trace of the river Makona.

Image processed with GIS to determine the drainage areas associated with the course of Makona. This allows for a more precise establishment of areas subject to the river dynamics, thus providing a better understanding for calculating reserves of secondary or alluvial diamonds.

Detailed analysis of the alluvial flat plain of Block 3, in which the slopes of the same are defined.

Map of the concession (granted + requested) and the perimeter of the area that comprises of the study.

By using an image processed in GIS (Geographic Information System), the current riverbed of the river Makona was digitized and attributed dimension values ​​in order to define the main landslides associated with that. These landslides are seen in light blue. The identification of the areas covered by the landslides allows estimates of potential reserves of diamonds. The approach of this study is consistent with that used by the USGS when the later developed a similar study of diamonds of Guinea. For the purpose of developing a detailed study, the area covered by the landslides was divided in blocks.

Mesh TIM (Triangular Irregular Network) created with GIS for hydrological calculations based on the gradient tributaries.

Calculation of the surface of the alluvial flat plain differentiated by the degree of the slope.

Geographic map of occurrences of diamonds in Guinea. The concession located in the “hot zone” of diamonds.

DEM of the concession as well as the geographic location of blocks defined for the calculation of reserves.

Digitalized image for determination of percentages of slopes. This analysis provides valuable information regarding the referred energy transport agent, thus further defining areas of diamond deposits.

High-resolution satellite image interpretation of one section of the river Makona.

DEM analysis and interpretation based on the same image.