Marine biogeochemical nitrogen cycling through Earth's history

EE Stüeken, A Pellerin, C Thomazo… - Nature Reviews Earth & …, 2024 - nature.com
Earth's marine nitrogen cycle has co-evolved with life and redox conditions over geological
time. In this Review, we provide an account of nitrogen cycling in the world's oceans over the …

Salinity reconstruction in Proterozoic depositional systems

Z Liu, TJ Algeo, JJ Brocks… - Geological …, 2025 - pubs.geoscienceworld.org
Although elemental proxies (ie, boron/gallium [B/Ga], strontium/barium [Sr/Ba], and
sulfur/total organic carbon [S/TOC]) have been extensively used to evaluate paleo …

Dynamic deep-water oxygenation of marginal seas in the aftermath of the Sturtian Snowball Earth: Insights from redox-hydrological reconstructions of the Nanhua …

F Dong, L Yin, Z Dong, J Liu, Z Tan, X Long, W Jia… - Precambrian …, 2023 - Elsevier
The Cryogenian interglacial period, separated by the Sturtian and Marinoan icehouses,
witnessed early radiations of eukaryotic algae and the first emergence of putative …

Marine redox and nutrient dynamics linked to the Cambrian radiation of animals

Y Liu, FT Bowyer, M Zhu, Y Xiong, T He, M Han… - …, 2024 - pubs.geoscienceworld.org
The early Cambrian witnessed an increase in metazoan ecosystem complexity, likely linked
to enhanced oxygen and nutrient availability. However, while improved stratigraphic and …

Oxygen increase and the pacing of early animal evolution

K Kaiho, A Shizuya, M Kikuchi, T Komiya… - Global and Planetary …, 2024 - Elsevier
While it is widely accepted that early animals originated and primarily evolved during the
Neoproterozoic to Cambrian period, there remains ongoing debate over how fluctuations in …

[HTML][HTML] Dynamic evolution of marine productivity, redox, and biogeochemical cycling track local and global controls on Cryogenian sea-level change

C Tu, CW Diamond, EE Stüeken, M Cao, W Pan… - … et Cosmochimica Acta, 2024 - Elsevier
The Cryogenian period of the Neoproterozoic was marked by two Snowball Earth
glaciations that bookended a non-glacial interval that lasted roughly 10 million years. The …

[HTML][HTML] Life through an Ediacaran glaciation: Shale-and diamictite-hosted organic-walled microfossil assemblages from the late Neoproterozoic of the Tanafjorden …

H Agić, S Jensen, G Meinhold, AES Högström… - Palaeogeography …, 2024 - Elsevier
New organic-walled microfossil (OWM) assemblages are reported from upper
Neoproterozoic glacial and interglacial siliciclastic deposits in Finnmark, northern Norway. A …

Hydrological dynamics and manganese mineralization in the wake of the Sturtian glaciation

Y Ye, X Wang, H Wang, H Fan, Z Chen, Q Guo… - … et Cosmochimica Acta, 2024 - Elsevier
Abstract The Cryogenian Sturtian and Marinoan glaciations stand as the most extreme
climate events in Earth history. Intriguingly, large-scale Mn carbonates characterize the …

Climatic-hydrologic influence on redox condition in the Cryogenian interglacial Nanhua Basin: Insights from the Datangpo Formation in the northwestern Yangtze …

G Cao, G Zhang, Y Zhao, T Wang, Y Liu, Q Li… - Precambrian …, 2024 - Elsevier
Tracking climatic and oceanic redox changes throughout the Neoproterozoic Cryogenian is
crucial to a better understanding of the coevolution of life and environment in geological …

[HTML][HTML] Surface water oxygenation and low bioproductivity during deposition of iron formation of the Jacadigo Group (Brazil): Insights from combined cadmium …

R Frei, C Gaucher, PC Boggiani, JA Frederiksen… - Chemical …, 2024 - Elsevier
Abstract The Banda Alta Formation (Urucum district, Mato Grosso do Sul, Brazil)
comprises∼ 600 Ma Fe and Mn deposits, which are among the world's youngest and largest …