Parker's main conclusion is that the rocks responsible for the Brunswick Magnetic Anomaly mark a major fault - zone that formed as portions of Africa and North America were sheared together roughly 300 million years ago — and that more extensive evidence for this collision are preserved along this zone. (sciencedaily.com)
The comet impact hypothesis could also explain the presence of magnetic anomalies near the swirls. (sciencedaily.com)
I am concerned about the apparent lack of correlation between the shortwave reflections and CRF as measured by the neutron counter (figure 6 on my DRAFT copy of «Cosmic rays modulation of the cloud effects on the radiative flux in the Southern Hemisphere Magnetic Anomaly region»). (sciencebits.com)