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Deep-sea hiatus record reveals orbital pacing by 2.4 Myr eccentricity grand cycles - Nature Communications

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Deep-sea hiatus record reveals orbital pacing by 2.4 Myr eccentricity grand cycles - Nature Communications

Astronomical forcing of Earth's climate is embedded in the rhythms of stratigraphic records, most famously as short-period (104–105 year) Milankovitch cycles. Astronomical grand cycles with periods of millions of years also modulate climate variability but have been detected in relatively few proxy records. Here, we apply spectral analysis to a dataset of Cenozoic deep-sea hiatuses to reveal a ~2.4 Myr eccentricity signal, disrupted by episodes of major tectonic forcing.

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Deep-sea hiatus record reveals orbital pacing by 2.4 Myr eccentricity grand cycles - Nature Communications

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Deep-sea hiatus record reveals orbital pacing by 2.4 Myr eccentricity grand cycles - Nature Communications

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