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How long did the Cretaceous magnetic quiet interval last?
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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.
The Cretaceous magnetic quiet interval lasted for approximately 42 million years. This period of stability, during which no magnetic reversals occurred, spanned from the early Aptian to the late Santonian ages.1