Publication Date:
2011-10-05
Description:
Earth history is punctuated by a huge variety of transitions and perturbations in climate and global biogeochemical cycles. These may be linked to major extinctions or evolutionary innovations, and may exhibit evidence for greenhouse warming and CO2 release and hence potentially hold direct future-relevant information (1) or may be associated with ice ages. Arguably, no event is more enigmatic or has been more keenly debated than the occurrence of extreme glaciation during the Neoproterozoic (1,000–542 Ma) (2), when, in two separate episodes, the global ocean potentially attained complete sea-ice cover to create a “snowball Earth” (3). One of the main...
Print ISSN:
0027-8424
Electronic ISSN:
1091-6490
Topics:
Biology
,
Medicine
,
Natural Sciences in General
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