The conventional view that marine magnetic anomalies arose in the upper, extrusive layer of the oceanic crust requires a rethink because perfectly normal magnetic anomalies arise at megamullions, suggesting that the lower part of the ocean crust contains a substantial magnetic signature.
The conventional view that marine magnetic anomalies arose in the upper, extrusive layer of the oceanic crust requires a rethink. Perfectly normal magnetic anomalies arise at megamullions. The lower part of the ocean crust contains a substantial magnetic signature. Perfectly normal magnetic anomalies are suggesting this.