Dynamic interplay of biogeochemical C, S and Ba cycles in response to the Shuram oxygenation event
Compared with Phanerozoic strata, sulfate minerals are relatively rare in the Precambrian
record; this is probably due to the lower concentrations of sulfate in dominantly anoxic …
record; this is probably due to the lower concentrations of sulfate in dominantly anoxic …
[HTML][HTML] The marine redox evolution and the formation model for the early Cambrian Gongxi-Tianzhu barite deposits in the South China Block
LW Yang, T Yang, J Li, Y Lin, HF Ling - Ore Geology Reviews, 2023 - Elsevier
Abstract Late Ediacaran to early Cambrian is marked as a vital ore-formation interval of the
Earth's history, particularly for the bedded barite deposits hosted in cherts and shales …
Earth's history, particularly for the bedded barite deposits hosted in cherts and shales …
Lithium isotopic constraints on the evolution of continental clay mineral factory and marine oxygenation in the earliest Paleozoic Era
The evolution of oxygen cycles on Earth's surface has been regulated by the balance
between molecular oxygen production and consumption. The Neoproterozoic–Paleozoic …
between molecular oxygen production and consumption. The Neoproterozoic–Paleozoic …
Seawater barium and sulfide removal improved marine habitability for the Cambrian Explosion of early animals
An increase in atmospheric p O2 has been proposed as a trigger for the Cambrian
Explosion at∼ 539–514 Ma but the mechanistic linkage remains unclear. To gain insights …
Explosion at∼ 539–514 Ma but the mechanistic linkage remains unclear. To gain insights …
Barite in the Ediacaran Doushantuo Formation and its implications for marine carbon cycling during the largest negative carbon isotope excursion in Earth's history
Abstract The Ediacaran Period (∼ 635–539 Ma) witnessed the largest negative inorganic
carbon isotope (δ 13 C carb) excursion in Earth's history (ie, the Shuram Excursion), which is …
carbon isotope (δ 13 C carb) excursion in Earth's history (ie, the Shuram Excursion), which is …
Cold seep activity in the early Cambrian: Evidence from the world-class shale-hosted Tianzhu barite deposit, South China
Barite (BaSO 4) is widely formed in modern and ancient sedimentary environments by the
interaction of barium-and sulfate-bearing fluids from a variety of sources. A word-class barite …
interaction of barium-and sulfate-bearing fluids from a variety of sources. A word-class barite …
Geochemical and paleontological evidence of early Cambrian dynamic ocean oxygenation and its implications for organic matter accumulation in mudrocks at the …
Y Zhang, T Zhang, D Huang, D Shao, H Luo - Marine and Petroleum …, 2022 - Elsevier
The evolution of global ocean oxygenation during the early Cambrian remains highly
controversial, making it difficult to evaluate how environmental triggers play a role in …
controversial, making it difficult to evaluate how environmental triggers play a role in …
[HTML][HTML] Dynamic evolution of marine productivity, redox, and biogeochemical cycling track local and global controls on Cryogenian sea-level change
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 …
glaciations that bookended a non-glacial interval that lasted roughly 10 million years. The …
Marine anoxia as a trigger for the largest Phanerozoic positive carbon isotope excursion: Evidence from carbonate barium isotope record
Abstract The mid-Ludfordian Lau carbon isotope excursion (Lau CIE) represents the largest
positive carbon isotope excursion in the Phanerozoic (∼ 9‰), coincident with the …
positive carbon isotope excursion in the Phanerozoic (∼ 9‰), coincident with the …
Shallow-water redox evolution from the Ediacaran to the early Cambrian: Linkages to the early animal innovations
The oceanic oxygenation from the Ediacaran to the early Cambrian (ca. 635–520 Ma) has
been commonly linked with the radiation or innovation of early metazoans. However, in this …
been commonly linked with the radiation or innovation of early metazoans. However, in this …