Milankovitch cycles

Impact of Cenozoic sea-level fluctuations on passive margin stratigraphic architecture: Implications for underground hydrogen storage potential

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Global map showing passive margins with thick sedimentary successions and greenhouse–icehouse regime shifts relevant to hydrogen storage potential.

This study used forward stratigraphic modelling of the Hunter offshore margin in New South Wales to examine how Cenozoic sea-level changes shaped the layering of sediments on passive continental margins. The results show that warm 'greenhouse' periods produced thick, continuous sediment layers good for storing gases, while colder 'icehouse' periods produced thinner, stacked layers that … Read more…

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

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Astronomical forcing of Earth’s climate is embedded in the rhythms of stratigraphic records, most famously as short-period (10^4–10^5 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 … Read more…