Selukwe Complex

The Selukwe Complex, located in the Zimbabwean craton, is a geological feature dating back approximately 3.8 to 3.75 billion years ago. It is part of the larger Precambrian geological history, specifically within Archean rock types.1

Greenstone-granite belts, like the Selukwe Complex, are found on most continents and are considered tectonic slices of oceanic and island arc crust. These belts typically consist of a lower volcanic group, rich in ultramafic and basaltic lavas, and an upper sedimentary group composed of shales, sandstones, and conglomerates. The term "greenstone" comes from the presence of metamorphic minerals like chlorite, hornblende, and epidote, which form under relatively low temperatures and pressures. Granitic rocks are often found within or adjacent to these greenstone sequences.1