Magnetic anomaly near the center of the Vredefort structure: implications for impact-related magnetic signatures: comment and reply

Magnetic signatures generated by meteorite impacts are analyzed based on the results of a study of the ca. 2 Ga Vredefort structure, which is a product of a large meteorite impact. It is suggested that postimpact thermal event caused by the reset remanent magnetism in the rocks is responsible for the magnetic anomaly and thermal metamorphism predating the formation of the magnetic signatures.