Britannica
Sources used in this answer
Between which Cretaceous ages were magnetic reversals absent?
Created from Britannica articles
using AI.
AI can make mistakes, so verify using Britannica articles.
Cretaceous Period
Distribution of landmasses, mountainous regions, shallow seas, and deep ocean basins during the late Cretaceous Period. Included in the paleogeographic reconstruction are the locations of the interval's subduction zones.
During the Cretaceous Period, there was a notable interval of approximately 42 million years during which magnetic reversals were absent. This period of magnetic stability occurred between the early Aptian and the late Santonian ages.1