Anne Nédélec

TL;DR: Assessment of the palaeogeographic changes preceding the Sturtian glacial period and the long-term evolution of atmospheric carbon dioxide levels using the coupled climate–geochemical model GEOCLIM indicates that tectonic changes could have triggered a progressive transition from a ‘greenhouse’ to an ‘icehouse” climate during the Neoproterozoic era.

TL;DR: In this paper, the authors show that the weathering of a 6×106 km2 basaltic province located within the equatorial region is sufficient to trigger a snowball glaciation, assuming a pre-perturbation PCO2 value of 280 ppmv.

TL;DR: In this article, the authors measured the iron isotope compositions and trace element concentrations of a suite of iron formation (IF) samples from the Neoproterozoic Rapitan Group, which was deposited during the older of two glacial episodes recorded in the Windermere Supergroup of the northern Canadian Cordillera.

TL;DR: The magnetic fabric of ferromagnetic granitic rocks results from both the shape preferred orientation of individual magnetite grains and their distribution anisotropy through magnetic interactions between neighbouring grains as mentioned in this paper.