| Anotation: | The project is aimed to provide mineralogical, geochemical and genetic characteristics of the Evate deposit in Mozambique, which is one of the largest phosphate deposits of Africa, with estimated reserves of 155 millions of metric tons of ore with 9.3 % of P2O5 calculated to the depth of 100 m from the recent surface. The deposit is intended to supply with apatite the fertilizer complex to be built in the nearby coastal district of Nacala-a-Velha. In spite of the prepared exploitation, the mineralogy of the deposit is poorly elucidated and its origin remains controversial. Recent models include metamorphogenic or magmatogenic origins linked with Precambrian alkalic intrusions. Magmatic deposits of similar types (e.g. Kovdor, Kola), however, serve primarily as a source of rare earth elements and rare metals bound in apatite and specific minerals. Detailed mineralogy as well as genetic information have a profound importance for the exploitation, beneficiation strategy and economic assessment of the deposit.
|
