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Explaining the Iron Drop Stones of the Sturtian Glaciation (Snowball Earth)

Sub–ice shelf ironstone deposition during the Neoproterozoic Sturtian glaciation Authors: Lechte et al Abstract: The Neoproterozoic Sturtian glaciation is considered to be among the most severe glaciations in Earth history, possibly encompassing the entire planet and lasting for more than 50 m.y. Iron formations are globally associated with Sturtian glacial successions, although the influence of glaciation on the genesis of these iron formations remains contentious.
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