Genetic types, geological characteristics and genetic mechanism of manganese deposits in Africa

This paper is the result of mineral exploration engineering.

Objective Manganese ore resources abundant in Africa, where the 310 Mt reserves and 660 Mt resources rank first in the world.Enhance research and awareness of manganese deposits in Africa, It has important guiding significance for promoting the prospecting of manganese ore in my country.

Methods Through the dissection of typical deposits in important metallogenic belts, the genetic types and geological characteristics of manganese deposits in Africa are summarized.

Results Manganese ore types in Africa are diverse, such precambrian banded iron formation (BIF) type, marine sedimentary type, continental (delta-lacustrine) sedimentary type, magmatic hydrothermal type etc., Among them, the precambrian banded iron formation (BIF) type and marine sedimentary type are the most important.

Conclusions Manganese deposits are characterized by large deposits (mainly large and super large), high grade (30%-50%), and relatively concentrated distribution. The manganese-forming age of manganese deposits is earlier, mainly in the Precambrian; Most manganese deposits suffer eluviation weathering supergene processes from 2.0 Ga unconformity erosionand Cenozoic.