Geochemistry

Over 150 sediment-hosted Pb-Zn-Cu and Ba occurrences are identified in Gabon along the contact between the Mesozoic to recent sedimentary Coastal Basin and the Archaean to Paleoproterozoic Kimezian basement of the West Congo Belt [1].  These occurrences were first described in the 1930s and Read more... about Geochemical characterisation of Pb‐Zn‐Cu and Ba mineralisation in the Lower Cretaceous sediments of the Coastal Basin, Gabon, Central Africa

Palaeo-river channels containing calcrete are important potential hosts for economic uranium mineralization in many parts of southern Africa particularly Namibia. The main feature of these deposits are the dominance of the mineral Carnotite [K2(UO2)2(VO4)2.3(H2O)] as the main uranium host in Read more... about Geochemical controls on uranium precipitation in calcrete palaeochannel deposits of Namibia

This paper presents a summary of field and laboratory studies conducted to determine the need and extent of rinsing requirements for a spent oxide gold heap. The testwork utilized the Gold Acres Heap in Nevada. Monitoring data was reviewed to examine the geochemical processes occurring within Read more... about Geochemical evaluation of heap rinsing of the Gold Acres Heap, Cortez joint venture, Nevada