Mathematics – Logic
Scientific paper
Oct 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011georl..3819502c&link_type=abstract
Geophysical Research Letters, Volume 38, Issue 19, CiteID L19502
Mathematics
Logic
Cryosphere: Cryobiology (0475), Cryosphere: Glaciers, Cryosphere: Ice Shelves, Cryosphere: Modeling (1952, 4316), Information Related To Geologic Time: Proterozoic
Scientific paper
The existence of photosynthetic eukaryotic algae during the so-called Snowball Earth events presents a conundrum. If thick ice covered the oceans, where could such life persist? Here we explore the possibility that photosynthetic life persisted at the end of long narrow seas, analogous to the modern-day Red Sea. In this first analytical model, we test the ability of the global sea glacier to penetrate a Red Sea analogue under climatic conditions appropriate during a Snowball Earth event. We find the Red Sea is long enough to provide a refugium only if certain ranges of climatic conditions are met. These ranges would likely expand if the restrictive effect of a narrow entrance strait is also considered.
Campbell Adam J.
Waddington Edwin D.
Warren Stephen G.
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