Proterozoic massif-type anorthosites as the archetypes of long-lived (≥ 100 Myr) magmatic systems—new evidence from the Kunene Anorthosite Complex (Angola)

•We give new ID-TIMS and LA-ICPMS U–Pb ages, as well as detailed field observations from the Kunene Anorthosite Complex (KAC) of SW Angola.•High-precision U–Pb zircon and baddeleyite ages for anorthositic rocks from across the complex (n = 11) range between 1376 and 1438 Ma—a period of ~60 Myr.•Comagmatic pegmatoidal enclaves give ages of ~1500 Ma, indicating as much as 120 Myr between some of the earliest and latest crystallization products of the system.•We infer that the KAC represents a long-lived mushy magmatic system that was likely emplaced in distinct pulses.