Parisot, J.C., Ventose, V., Gradin, G., Bourges, F., Debat, P., Tollon, F. and Millo, L. (1995) Dynamique de l’or et d’autres minéraux lourds dans un profil d’altération cuirassé du Burkina Fasso, Afrique de l’Ouest. Intéret pour l’interprétation dans la mise en place des matériaux constituant les cuirasses de haut glacis. Géosciences de Surface, Comptes Rendus de l’Académie des Sciences, Paris.

has been cited by the following article:

• TITLE: Experimental Abrasion Study of the Evolution of Gold Morphological Criteria in Different Sediments as a Function of Time

  AUTHORS: Fary Diome

  KEYWORDS: Weathering Mantles, Experimental Abrasion, Gold

  JOURNAL NAME: Open Journal of Soil Science, Vol.14 No.1, January 18, 2024

  ABSTRACT: The use of gold as a tracer element for understanding the mode of emplacement of these formations requires a good knowledge of its dynamics. To this end, we have carried out experimental studies to investigate the evolution of contour states (regular, irregular), surface states (blunt, rough), shape (elongation) and dimension (size). The study of these criteria is carried out on SEM photos of particles, taken before and after the experiment, using Aphelion image processing software. Five experiments were carried out to study the influence of sediment granulometry and water dilution on particle morphological changes. The results of these experiments show that coarse sediments (>1 mm) are largely responsible for morphological changes in gold. They cause fragmentation and/or folding of the particle edges, depending on the magnitude of the impact forces. Strong impacts due to high water dilution cause staking on the particle surface. Fine sediments (