Abstract The Early Cambrian Late Stage 2 to Stage 3 (526–514 Ma) was characterized by
the peak of the Cambrian Explosion and a large-scale global transgression that resulted in …

Abstract Early Cambrian basin in South China has deposited successive sedimentary rocks,
which not only recorded geochemical information of the variation of palaeo-ocean …

The relationship between oxygen and evolution of early eukaryotes including algae and
primitive animals in geological history has been debated, partly due to the varying estimates …

Oceanic redox changes may be a key environmental trigger for the “Cambrian explosion”.
However, a hypothesized predominantly oxygenated early Cambrian ocean, inferred from …

Early Cambrian organic-rich black rocks are extensively distributed in the southern China. In
this study, we have discussed the relation of paleo-sedimentary environments with …

The history of molecular oxygen (O2) in Earth's atmosphere is still debated; however,
geological evidence supports at least two major episodes where O2 increased by an order …

The factors controlling silica enrichment of the Lower Cambrian sedimentary succession
have been disputed for a long time. This paper describes results of a petrological and …

Abstract The Early Cambrian Niutitang Formation is characterized by wide distribution of
black shales on Yangtze Block, South China. Here we have reported the pyrite concretions …

This study aims to investigate paleoenvironments, hydrothermal activity, and seawater
restriction of the lower Cambrian Shui**gtuo Formation in the Three Gorges area and clarify …

The lack of unequivocal sponge fossils before the Cambrian despite their probable deep
origin during the Cryogenian period has been a conundrum to geologists. Their impact on …