Earth's rotational speed has varied significantly throughout geological history
Earth's rotational speed has continuously varied throughout geological history, driven by mechanisms such as tidal dissipation and changing surface mass distribution.
The claim is a specific, empirical geological statement regarding the variation of Earth's rotational speed over time. Multiple retrieved papers explicitly discuss how Earth's rotation rate and length of day (LOD) have evolved and varied across geological timescales due to tidal friction, orbital dynamics, and mass redistribution. Therefore, the claim is well-supported by the evidence.
Daher H, Arbic BK, Williams JG, Ansong JK, Boggs DH, Müller M, Schindelegger M, Austermann J, Cornuelle BD, Crawford EB, Fringer OB, Lau HCP, Lock SJ, Maloof AC, Menemenlis D, Mitrovica JX, Green JAM, Huber M. Long-Term Earth-Moon Evolution With High-Level Orbit and Ocean Tide Models.. 2021. https://doi.org/10.1029/2021je006875
This study models the long-term Earth-Moon system and demonstrates that tidal energy dissipation steadily slows down Earth's rotation rate over geological time.
See more details
Shahvandi MK, Adhikari S, Dumberry M, Mishra S, Soja B. The increasingly dominant role of climate change on length of day variations.. 2024. https://doi.org/10.1073/pnas.2406930121
This research shows that surface mass transport and climate changes continuously alter the length of day, contributing to rotational speed variations.
Wu Y, Malinverno A, Meyers SR, Hinnov LA. A 650-Myr history of Earth's axial precession frequency and the evolution of the Earth-Moon system derived from cyclostratigraphy.. 2024. https://doi.org/10.1126/sciadv.ado2412
This cyclostratigraphic analysis reconstructs the 650-million-year history of Earth's rotation and length of day, confirming significant variations over geological time.
The paper trail · every fact has a biography
Challenge the receipt
Citation formatting by citeproc-js (Frank Bennett) and the Citation Style Language project. Source and licenses.
Terms · Privacy · How verdicts work · Dispute this receipt