Integrated records of environmental change and evolution challenge the Cambrian Explosion
Abstract The 'Cambrian Explosion'describes the rapid increase in animal diversity and
abundance, as manifest in the fossil record, between~ 540 and 520 million years ago (Ma) …
abundance, as manifest in the fossil record, between~ 540 and 520 million years ago (Ma) …
Global marine redox evolution from the late Neoproterozoic to the early Paleozoic constrained by the integration of Mo and U isotope records
The emergence and diversification of early animals is commonly thought to have coincided
with atmosphere and ocean oxygenation across the terminal Neoproterozoic and early …
with atmosphere and ocean oxygenation across the terminal Neoproterozoic and early …
[HTML][HTML] Effective use of cerium anomalies as a redox proxy in carbonate-dominated marine settings
Rare earth elements and yttrium (REY) have a distinct distribution pattern in seawater, and
this pattern may be faithfully preserved in carbonate sediments and rocks. Anomalous …
this pattern may be faithfully preserved in carbonate sediments and rocks. Anomalous …
Extensive marine anoxia during the terminal Ediacaran Period
The terminal Ediacaran Period witnessed the decline of the Ediacara biota (which may have
included many stem-group animals). To test whether oceanic anoxia might have played a …
included many stem-group animals). To test whether oceanic anoxia might have played a …
Rare earth element geochemistry characteristics of seawater and porewater from deep sea in western Pacific
Y Deng, J Ren, Q Guo, J Cao, H Wang, C Liu - Scientific Reports, 2017 - nature.com
Deep-sea sediments contain high concentrations of rare earth element (REE) which have
been regarded as a huge potential resource. Understanding the marine REE cycle is …
been regarded as a huge potential resource. Understanding the marine REE cycle is …
Oxygenation of the Mesoproterozoic ocean and the evolution of complex eukaryotes
Abstract The Mesoproterozoic era (1,600–1,000 million years ago (Ma)) has long been
considered a period of relative environmental stasis, with persistently low levels of …
considered a period of relative environmental stasis, with persistently low levels of …
Assessing the utility of Fe/Al and Fe-speciation to record water column redox conditions in carbonate-rich sediments
Geochemical proxies based on Fe abundance (Fe/Al) and Fe-speciation have been widely
applied to marine sediments in order to unravel paleo-depositional redox conditions though …
applied to marine sediments in order to unravel paleo-depositional redox conditions though …
Global marine redox changes drove the rise and fall of the Ediacara biota
The role of O2 in the evolution of early animals, as represented by some members of the
Ediacara biota, has been heavily debated because current geochemical evidence paints a …
Ediacara biota, has been heavily debated because current geochemical evidence paints a …
Low-oxygen waters limited habitable space for early animals
The oceans at the start of the Neoproterozoic Era (1,000–541 million years ago, Ma) were
dominantly anoxic, but may have become progressively oxygenated, coincident with the rise …
dominantly anoxic, but may have become progressively oxygenated, coincident with the rise …
Marine redox fluctuation as a potential trigger for the Cambrian explosion
The diversification of metazoans during the latest Neoproterozoic and early Cambrian has
been attributed to, among other factors, a progressive rise in surface oxygen levels …
been attributed to, among other factors, a progressive rise in surface oxygen levels …