Texte principal de l'évenement.
Exploring in deeply-weathered and lateritic terrains presents a range of challenges. Regions covered by regolith cover wide areas of the tropics and sub-tropics, in rainfall regimes ranging from rainforest to desert, with outliers in temperate to sub-Arctic zones. Regolith covers many highly-prospective regions in South & Central America, Africa, Australia and Southeast Asia, and savvy explorers must know how to deal with the problems and opportunities that they present.
This 2 day short course will provide:
- - an introduction to the nature and formation of the regolith and landscapes of weathered terrains
- - comparisons and contrasts across regions, including recommendations for a suitable terminology
- - discussion of geochemical dispersion within the context of regolith and landscape evolution in different regions
- - modules on gold geochemistry during regolith evolution and exploration in areas of laterite
- - case histories based on research and exploration experiences, with bias towards gold, but will also include base metals and nickel
- - discussion of the role of weathering in the formation of secondary mineral deposits, including nickel laterites and bauxites