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Paul F. Hoffman, Alan J. Kaufman, Galen P. Halverson, and Daniel P. Schrag
A Neoproterozoic snowball earth
Science (August 1998), 281(5381):1342-1346
Index Terms/Descriptors: Latitude & Longitude:
GeoRef, Copyright 2004, American Geological Institute.
Africa; ancient ice ages; C-13/C-12; calcium carbonate; carbon; carbonate rocks; Congo Craton; correlation; geochemical anomalies; geochemistry; glacial environment; glacial geology; glacial sedimentation; isotope ratios; isotopes; Namibia; Neoproterozoic; Otavi Group; paleoclimatology; paleoecology; paleoenvironment; paleomagnetism; petrology; Precambrian; precipitation; productivity; Proterozoic; sedimentary rocks; sedimentation; Southern Africa; spatial distribution; stable isotopes; upper Precambrian
S20°00'00" -
S19°00'00" and
E14°00'00" -
E15°00'00" (Search for maps and images at Alexandria Digital Library)