Oxygenic photosynthesis is arguably the most important biological innovation in Earth's
history, facilitating the transition to a habitable planet for complex life. Dating the emergence …

The Cryogenian interglacial period, separated by the Sturtian and Marinoan icehouses,
witnessed early radiations of eukaryotic algae and the first emergence of putative …

There is an increasing consensus that microbes play a critical role in the genesis of
sedimentary manganese (Mn) carbonate deposits. However, compelling evidence for the …

Abstract Late Devonian (ca. 360 Ma), Early Carboniferous (ca. 330 Ma), and Early Triassic
(ca. 250 Ma) manganese deposits in the South China Block support an emerging view that …

Abstract The Cambrian Explosion, which is characterized by complex organisms radiation
after∼ 521 Ma, has led to speculation about low levels of ocean oxygenation during the …

The genesis of manganese (Mn)-carbonate deposits in the Cryogenian Datangpo Formation
(∼ 662.9–654.5 Ma), Nanhua Basin, South China remains controversial. Here, we combine …

The Ediacaran period witnessed events that were of significance to the evolution of Earth's
environment and early life, especially the Neoproterozoic Oxygenation Event during the …

Abstract The Cryogenian Sturtian and Marinoan glaciations stand as the most extreme
climate events in Earth history. Intriguingly, large-scale Mn carbonates characterize the …

Abstract During the Middle Permian, Earth experienced a period of profound environmental
changes, including the final stages of the Late Paleozoic Ice Age (LPIA), global seawater …

The direct precipitation model of Mn‑carbonate formation, based on investigation of the
modern sedimentary record and simulation experiments, is commonly used to explain the …