[HTML][HTML] Sedimentary Ce anomalies: Secular change and implications for paleoenvironmental evolution
K Zhang, GA Shields - Earth-Science Reviews, 2022 - Elsevier
Although Ce anomalies are commonly used to reconstruct past seawater redox conditions,
published interpretations are based on various proxy materials and analytical approaches …
published interpretations are based on various proxy materials and analytical approaches …
The links between Neoproterozoic tectonics, paleoenvironment and Cambrian explosion in the Yangtze Block, China
The correlation between Neoproterozoic tectonics, paleoenvironment and early life are
crucial for understanding the evolution of the Earth's habitability. The Yangtze Block …
crucial for understanding the evolution of the Earth's habitability. The Yangtze Block …
A Great late Ediacaran ice age
The emergence of the Ediacara biota soon after the Gaskiers glaciation ca. 580 million years
ago (Ma) implies a possible glacial fuse for the evolution of animals. However, the timing of …
ago (Ma) implies a possible glacial fuse for the evolution of animals. However, the timing of …
CO2 buildup drove global warming, the Marinoan deglaciation, and the genesis of the Ediacaran cap carbonates
What caused ocean/climate changes that drove Marinoan deglaciation, and the subsequent
genesis of Ediacaran cap carbonates remains unclear. To address this issue, we examined …
genesis of Ediacaran cap carbonates remains unclear. To address this issue, we examined …
[HTML][HTML] Environmental controls on very high δ238U values in reducing sediments: Implications for Neoproterozoic seawater records
Uranium isotopes (δ 238 U) are a widely applied tool for tracing global changes in oceanic
anoxia. Interpretation of seawater values and trends, often reconstructed from carbonates …
anoxia. Interpretation of seawater values and trends, often reconstructed from carbonates …
An authigenic response to Ediacaran surface oxidation: Remarkable micron-scale isotopic heterogeneity revealed by SIMS
Abstract The Ediacaran Shuram excursion (SE) records a global decrease in carbonate
carbon isotope (δ 13 C carb) values from+ 6‰ down to ca.–10‰, representing the largest δ …
carbon isotope (δ 13 C carb) values from+ 6‰ down to ca.–10‰, representing the largest δ …
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 …
Neoproterozoic to Cambrian period, there remains ongoing debate over how fluctuations in …
A DOM regulation model for dolomite versus calcite precipitation in the Ediacaran Ocean: Implications for the “dolomite problem”
Abstract The Ediacaran Period (∼ 635–539 Ma) witnessed the largest negative carbonate
carbon isotope (δ 13 C carb) excursion in Earth history (to− 12‰ VPDB), known as the …
carbon isotope (δ 13 C carb) excursion in Earth history (to− 12‰ VPDB), known as the …
A microfossil assemblage from the Ediacaran Doushantuo Formation in the Shennongjia area (Hubei Province, South China): Filling critical paleoenvironmental and …
Q Ye, J Li, J Tong, Z An, J Hu, S Xiao - Precambrian Research, 2022 - Elsevier
Abstract Microfossils of the Ediacaran Doushantuo Formation in South China provide an
important window onto the rapid diversification of marine eukaryotes after the terminal …
important window onto the rapid diversification of marine eukaryotes after the terminal …
The origin of cap carbonate after the Ediacaran glaciations
R Wang, C Xing, B Wen, X Wang, K Liu… - Global and Planetary …, 2023 - Elsevier
Abstracts Cap carbonate is the most unique component of a Snowball Earth glaciation, ie,
two Cryogenian global glaciations. In the canonical model, cap carbonate precipitation …
two Cryogenian global glaciations. In the canonical model, cap carbonate precipitation …