Rotational dynamics of the Earth, over geological timescales, have profoundly affected local
and global climatic evolution, probably contributing to the evolution of life. To better retrieve …

The discovery of nitrogen fixation in unicellular cyanobacteria provided the first clues for the
existence of a circadian clock in prokaryotes. However, recalcitrance to genetic manipulation …

Current views of O 2 accumulation in Earth history depict three phases: The onset of O 2
production by~ 2.4 billion years ago; 2 billion years of stasis at~ 1% of modern atmospheric …

Marine oxygenation during the Archean and Paleoproterozoic is poorly constrained. Iodine
in carbonate is a possible oxygen indicator. We obtained molar ratios of iodine to calcium …

Tidal currents flowing over rough bathymetry generate internal tides. These internal waves
with tidal frequency can be decomposed into vertical modes. Low modes generally travel …