origin and emplacement of mineral deposits in botswana
The Mn and Fe mineral systems and occurrences associated with rift environments with restricted development of sea basins have a volcanogenic origin related to bimodal the case of Mn veins formed in the absence of marine sequences and thus without associated submarine hydrothermal activity it has been interpreted that the source of Mn and Fe was the alkaline basic magmatism ...As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.