Sedimentary challenge to snowball Earth

PA Allen, JL Etienne - Nature Geoscience, 2008 - nature.com
Evidence from the magnetic field fossilized in sedimentary rocks suggests that, more than
600 million years ago, ice occupied tropical latitudes. A popular explanation for these …

The Sturtian 'snowball'glaciation: fire and ice

Y Goddéris, Y Donnadieu, A Nédélec, B Dupré… - Earth and planetary …, 2003 - Elsevier
The Sturtian 'snowball'glaciation (730 Ma) is contemporary with the dislocation of the
Rodinia supercontinent. This dislocation is heralded and accompanied by intense magmatic …

Climate dynamics of a hard snowball Earth

RT Pierrehumbert - Journal of Geophysical Research …, 2005 - Wiley Online Library
The problem of deglaciating a globally ice‐covered (“hard snowball”) Earth is examined
using a series of general circulation model simulations. The aim is to determine the amount …

Proterozoic (pre-Ediacaran) glaciation and the high obliquity, low-latitude ice, strong seasonality (HOLIST) hypothesis: Principles and tests

GE Williams - Earth-Science Reviews, 2008 - Elsevier
Sedimentological observations and palaeomagnetic data for Cryogenian glacial deposits
present the climatic paradox of grounded glaciers and in situ cold climate near sea-level …

Climate at high-obliquity

D Ferreira, J Marshall, PA O'Gorman, S Seager - Icarus, 2014 - Elsevier
The question of climate at high obliquity is raised in the context of both exoplanet studies (eg
habitability) and paleoclimates studies (evidence for low-latitude glaciation during the …

Paleoenvironment reconstructions and climate simulations of the Early Triassic: impact of the water and sediment supply on the preservation of fluvial systems

S Péron, S Bourquin, F Fluteau, F Guillocheau - Geodinamica Acta, 2005 - Taylor & Francis
Paleoenvironmental reconstructions and climatic modelling allow us to investigate the
influence of water and sediment supply on the preservation of fluvial systems within a given …

Pb-Pb dating of the Dal'nyaya Taiga Group in the Ura uplift of southern Siberia: Implications for correlation of C-isotopic and biotic events in the Ediacaran

SV Rud'ko, AB Kuznetsov, PY Petrov, DR Sitkina… - Precambrian …, 2021 - Elsevier
The Ura uplift section in southern Middle Siberia is one of the key sections for testing of
climatic changes and evolutionary events of the Ediacaran, as well as the development of …

Scenario for the evolution of atmospheric pCO2 during a snowball Earth

G Le Hir, G Ramstein, Y Donnadieu… - …, 2008 - pubs.geoscienceworld.org
The snowball Earth theory, initially proposed by JL Kirschvink to explain the Neoproterozoic
glacial episodes, suggests that the Earth was globally ice covered at 720 Ma (Sturtian …

[HTML][HTML] Shuram–Wonoka carbon isotope excursion: Ediacaran revolution in the world ocean's meridional overturning circulation

GE Williams, PW Schmidt - Geoscience Frontiers, 2018 - Elsevier
Abstract The late Ediacaran Shuram–Wonoka excursion, with δ 13 C carb values as low as–
12‰(PDB) in marine-shelf deposits and spanning up to 10 Myr, is the deepest and most …

[HTML][HTML] Sensitivity of Neoproterozoic Snowball-Earth inceptions to continental configuration, orbital geometry, and volcanism

J Eberhard, OE Bevan, G Feulner, S Petri… - Climate of the …, 2023 - cp.copernicus.org
Abstract The Cryogenian period (720–635 million years ago) in the Neoproterozoic era
featured two phases of global or near-global ice cover termed “snowball Earth”. Climate …