Sediment cycles record past lunar distance and length of day
astrobio
Alberto Malinverno
Lamont-Doherty Earth Observatory of Columbia University
Astronomical cycles have been widely recognized to drive climatic changes that are recorded by cyclic sediment deposition. The developing discipline of astrochronology uses these cycles to progressively refine the geological time scale. Astronomy therefore informs geology. Conversely, can the geological record provide astronomical information?
Sediment cycles record the period of the axial precession of the Earth...