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 …

Sedimentological perspectives on climatic, atmospheric and environmental change in the Neoproterozoic Era

GH Spence, DP Le Heron, IJ Fairchild - Sedimentology, 2016 - Wiley Online Library
Sedimentological insights underpin many of the important recent advances in understanding
of Earth system behaviour in the Neoproterozoic Era. This article reviews three main …

Continental flood basalt weathering as a trigger for Neoproterozoic Snowball Earth

GM Cox, GP Halverson, RK Stevenson… - Earth and Planetary …, 2016 - Elsevier
Atmospheric CO 2 levels and global climate are regulated on geological timescales by the
silicate weathering feedback. However, this thermostat has failed multiple times in Earth's …

Genesis of Archean to Paleoproterozoic banded iron formations in the North China Craton: Geological and paleoenvironmental implications

K Jiang, J Wang, T Kusky, A Polat, B Huang… - Earth-Science …, 2024 - Elsevier
The source characteristics and depositional environments of banded iron formations (BIFs)
can provide key information on the chemical composition, redox environment, and tectonic …

[图书][B] Iron geochemistry: an isotopic perspective

C Johnson, B Beard, S Weyer - 2020 - Springer
Iron is a remarkable element in its relatively high abundance for its mass and its sensitivity to
(and control of) redox on a planetary scale over geologic time. Numerous volumes have …

South Australian U-Pb zircon (CA-ID-TIMS) age supports globally synchronous Sturtian deglaciation

GM Cox, V Isakson, PF Hoffman, TM Gernon… - Precambrian …, 2018 - Elsevier
A central prediction of the Snowball Earth hypothesis is that glacial onset should be
synchronous at low latitudes, and its termination should be rapid and synchronous globally …

Thermochronologic constraints on the origin of the Great Unconformity

KT McDannell, CB Keller… - Proceedings of the …, 2022 - National Acad Sciences
The origin of the phenomenon known as the Great Unconformity has been a fundamental
yet unresolved problem in the geosciences for over a century. Recent hypotheses advocate …

Orbital forcing of ice sheets during snowball Earth

RN Mitchell, TM Gernon, GM Cox, AR Nordsvan… - Nature …, 2021 - nature.com
The snowball Earth hypothesis—that a runaway ice-albedo feedback can cause global
glaciation—seeks to explain low-latitude glacial deposits, as well as geological anomalies …

Origin of the Neoproterozoic Fulu iron formation, South China: Insights from iron isotopes and rare earth element patterns

V Busigny, NJ Planavsky, E Goldbaum… - … et Cosmochimica Acta, 2018 - Elsevier
Abstract In the Neoproterozoic Era there was widespread deposition of iron formations in
close association with global or near glaciations. These 'Snowball Earth'glaciations likely …

Influence of turbidity deposition on biogeochemical cycling in sediments and oceanic redox stratification during the waning Sturtian glaciation

S Zhu, X Lang, K Zhao, M Hou - Global and Planetary Change, 2023 - Elsevier
Global oceans might have completely frozen during the Cryogenian Sturtian glaciation (717–
660 Ma), which would have resulted in marine anoxia due to the oceans' prolonged …