High-temperature, low-pressure tectono-thermal evolution of the Irumide Belt, central, Southern Africa: Lithosphere delamination during arc-accretion.

摘要: [1] The Irumide belt forms a narrow, northeast oriented region of deformed granitic basement, overlain by supracrustal sequence and intruded widespread granitoids, stretching from central Zambia to the Zambia-Tanzania border into northern Malawi (Fig. 1). To south southeast, Permo-Triassic Karoo grabens subdivide Belt two parts; (