Biomarker evidence for photosynthesis during neoproterozoic glaciation.

Abstract

Laterally extensive black shales were deposited on the São Francisco craton in southeastern Brazil during low-latitude Neoproterozoic glaciation approximately 740 to 700 million years ago. These rocks contain up to 3.0 weight % organic carbon, which we interpret as representing the preserved record of abundant marine primary productivity from glacial times… (More)

Topics

2 Figures and Tables