Note 4
Note however that the hypothesis of global glaciations in
the Vendian and Late Riphean [Harland, 1964; Hoffman
et al., 1998; etc.] cannot be deemed proven yet [Chumakov,
1992; Crowell, 1999;
Smith,
2000; etc.], because it is still based on sporadic [Evans,
2000\link44) and questionable [Meert and van der Voo, 2000]
paleomagnetic measurements.
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