Abstract Otavi Group is a 1.5–3.5-km-thick epicontinental marine carbonate succession of
Neoproterozoic age, exposed in an 800-km-long Ediacaran− Cambrian fold belt that rims …

Geological evidence indicates that grounded ice sheets reached sea level at all latitudes
during two long-lived Cryogenian (58 and≥ 5 My) glaciations. Combined uranium-lead and …

The transition from dominant bacterial to eukaryotic marine primary productivity was one of
the most profound ecological revolutions in the Earth's history, reorganizing the distribution …

The Neoproterozoic, 1000–541 million years (Myr) ago, saw the transition from a largely
bacterial world to the emergence of multicellular grazers, suspension feeders and predators …

It is not well understood how, in the immediate aftermath of the Sturtian Snowball Earth,
marine sulfur cycling resulted in a global distribution of sedimentary pyrite with δ 34 S values …

The beginning of the Ediacaran Period (∼ 635 Ma) is marked by conspicuous dolostone
units that cap Marinoan glacial deposits worldwide. The extent and sedimentary …

Measurements of triple oxygen isotope ratios in barite horizons within post-Marinoan cap
carbonates have provided some of the most compelling evidence that the Marinoan …

The snowball Earth hypothesis predicts that continental chemical weathering diminished
substantially during, but rebounded strongly after, the Marinoan ice age some 635 Mya …

A series of dramatic oceanic and atmospheric events occurred in the immediate aftermath of
the Marinoan “snowball Earth” meltdown∼ 635 My ago. However, at the 10-to 100-ky …

The termination of the Cryogenian period marks a transition from an extreme ice-to a
greenhouse climate, likely initiated by increased atmospheric CO 2, however uncertainties …