Claypool continued: Extending the isotopic record of sedimentary sulfate

PW Crockford, M Kunzmann, A Bekker, J Hayles… - Chemical …, 2019 - Elsevier
Abstract The Proterozoic Eon spans Earth's middle age during which many important
transitions occurred. These transitions include the oxygenation of the atmosphere …

Snowballs in Africa: sectioning a long-lived Neoproterozoic carbonate platform and its bathyal foreslope (NW Namibia)

PF Hoffman, GP Halverson, DP Schrag, JA Higgins… - Earth-Science …, 2021 - Elsevier
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 …

Snowball Earth climate dynamics and Cryogenian geology-geobiology

PF Hoffman, DS Abbot, Y Ashkenazy, DI Benn… - Science …, 2017 - science.org
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 …

U-Pb and Re-Os geochronology tracks stratigraphic condensation in the Sturtian snowball Earth aftermath

AD Rooney, C Yang, DJ Condon, M Zhu… - …, 2020 - pubs.geoscienceworld.org
The snowball Earth hypothesis predicts a strong hysteresis resulting in discrete multi-million-
year glaciations followed by globally synchronous deglaciation. Here we present new U-Pb …

Diachronous development of great unconformities before Neoproterozoic snowball Earth

RM Flowers, FA Macdonald… - Proceedings of the …, 2020 - National Acad Sciences
The Great Unconformity marks a major gap in the continental geological record, separating
Precambrian basement from Phanerozoic sedimentary rocks. However, the timing …

Biological diversification linked to environmental stabilization following the Sturtian Snowball glaciation

FT Bowyer, AJ Krause, Y Song, KJ Huang, Y Fu… - Science …, 2023 - science.org
The body fossil and biomarker records hint at an increase in biotic complexity between the
two Cryogenian Snowball Earth episodes (ca. 661 million to≤ 650 million years ago) …

Ediacaran-Ordovician tectonic and geodynamic drivers of Great Unconformity exhumation on the southern Canadian Shield

BA Peak, RM Flowers, FA Macdonald - Earth and Planetary Science Letters, 2023 - Elsevier
Abstract The Great Unconformity erosion surface between Paleozoic sedimentary rocks and
Archean-Proterozoic basement has been related to erosion occurring during Snowball Earth …

Deposition and termination of Neoproterozoic iron formations (NIFs): New insights from NIFs in China

H Ye, CZ Wu, W Li, RX Lei, X Sun, W Hao… - Earth-Science …, 2024 - Elsevier
Over the past two decades, advancements in geochronological, sedimentary, and
geochemical studies have considerably deepened our understanding of the links between …

[PDF][PDF] Neoproterozoic stratigraphy of the Zavkhan terrane of Mongolia: The backbone for Cryogenian and early Ediacaran chemostratigraphic records

U Bold, EF Smith, AD Rooney, SA Bowring… - American Journal of …, 2016 - ajsonline.org
The Neoproterozoic Tsagaan-Olom Group is exposed in the Zavkhan Terrane of
southwestern Mongolia and hosts unique geochemical, paleoclimate, and paleontological …

Massive volcanism may have foreshortened the Marinoan snowball Earth

Z Lan, MH Huyskens, G Le Hir… - Geophysical …, 2022 - Wiley Online Library
Abstract The Cryogenian Period (717–635 Ma) experienced two low‐latitude “snowball
Earth” glaciations, the Sturtian and the Marinoan of contrasting 57 and< 16 Myr durations …