Andreoli, Marco Achille Giacomo2019-03-192019-03-191981https://hdl.handle.net/10539/26581A Thesis Submitted to the Faculty of Science University of the Witwatersrand, Johannesburg for the Degree of Doctor of Philosophy.The Precambrian geology of southern Malawi forms a segment of the Mozambique Belt and includes important suites of amphibolite and granulite facies rocks. These grade into each other and comprise lithologies of supracrustal affinity, together with clearly intrusive varieties. In granulites and transitional rocks, hypersthene-augite-plagioclase- (edenitic pargasite) parageneses, or almandine-augite-plagioclase- (-quartz)(-tschermakitic pargasite) parageneses with affinities with eclogite, progressively replace amphibolite facies assemblages. (Abbreviation abstract)enThesis