Air density 2.7 billion years ago limited to less than twice modern levels by fossil raindrop imprints

Sanjoy M. Som (), David C. Catling, Jelte P. Harnmeijer, Peter M. Polivka and Roger Buick
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Sanjoy M. Som: University of Washington
David C. Catling: University of Washington
Jelte P. Harnmeijer: University of Washington
Peter M. Polivka: University of Washington
Roger Buick: University of Washington

Nature, 2012, vol. 484, issue 7394, 359-362

Abstract: Experiments dropping raindrops onto ash combined with raindrop fossil imprints yield an upper limit for air density in the Archaean.

Date: 2012
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DOI: 10.1038/nature10890

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