Hydrogeochemistry of Surface and Ground Water in Alatening Village, Northwest Region, Cameroon

Figure 2

Macroscopic and thin sections of trachytes. E = boulders of trachytes covering a very large distance in the study area (A1–A4). 1 = rock sample with dark to grey colour, 2 = sanidine crystals following the same direction, 3 = plagioclases, and 4 = assemblage of sanidine showing twining.