A Cenozoic Record of Deep Oceanic Zn Isotopic Composition in Ferromanganese Crusts
M Zhao, N Planavsky, X Wang, Y Zhang… - American Journal of …, 2023 - ajsonline.org
Water plays a critical role in erosion and sediment transport and this relationship is most
evident in the hyperarid Atacama Desert of Northern Chile, a region characterized by …
evident in the hyperarid Atacama Desert of Northern Chile, a region characterized by …
[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 …
A template for an improved rock-based subdivision of the pre-Cryogenian timescale
The geological timescale before 720 Ma uses rounded absolute ages rather than specific
events recorded in rocks to subdivide time. This has led increasingly to mismatches between …
events recorded in rocks to subdivide time. This has led increasingly to mismatches between …
A sedimentary record of the evolution of the global marine phosphorus cycle
Phosphorus (P) is typically considered to be the ultimate limiting nutrient for Earth's
biosphere on geologic timescales. As P is monoisotopic, its sedimentary enrichment can …
biosphere on geologic timescales. As P is monoisotopic, its sedimentary enrichment can …
A Double‐Edged Sword: The Role of Sulfate in Anoxic Marine Phosphorus Cycling Through Earth History
MA Kipp - Geophysical Research Letters, 2022 - Wiley Online Library
Modern anoxic marine sediments release phosphorus (P) to seawater, driving feedbacks at
multiple timescales. On sub‐Myr timescales, anoxic P regeneration amplifies ocean …
multiple timescales. On sub‐Myr timescales, anoxic P regeneration amplifies ocean …
Fossilized giant sulfide‐oxidizing bacteria from the Devonian Hollard Mound seep deposit, Morocco
The giant sulfide‐oxidizing bacteria are particularly prone to preservation in the rock record,
and their fossils have been identified in ancient phosphorites, cherts, and carbonates. This …
and their fossils have been identified in ancient phosphorites, cherts, and carbonates. This …
[HTML][HTML] Testing the global significance of the sulfur isotope record of the ca. 2.0 Ga Zaonega Formation: A micro-scale S isotope investigation
The Paleoproterozoic metasedimentary rocks of the Zaonega Formation (Onega Basin, NW
Russia) are important archives of inferred global environmental change following the initial …
Russia) are important archives of inferred global environmental change following the initial …
Identifying global vs. basinal controls on Paleoproterozoic organic carbon and sulfur isotope records
Paleoproterozoic sedimentary successions are important archives of the redox evolution of
Earth's atmosphere and oceans. Efforts to unravel the dynamics of our planet's early …
Earth's atmosphere and oceans. Efforts to unravel the dynamics of our planet's early …
Transient deep-water oxygenation recorded by rare Mesoproterozoic phosphorites, South Urals
EE Stüeken, AB Kuznetsov, IM Vasilyeva… - Precambrian …, 2021 - Elsevier
The Mesoproterozoic deep ocean is thought to have been largely anoxic, dominated by
ferruginous conditions. Phosphate was scavenged from the water column by iron …
ferruginous conditions. Phosphate was scavenged from the water column by iron …
Shallow-ocean and atmospheric redox signatures preserved in the ca. 1.88 Ga Sokoman iron formation, Labrador Trough, Canada
Detailed mineralogical and geochemical analysis of drill core samples from three previously
unstudied localities (Sheps Lake, Lac Ritchie, Hayot Lake) of the ca. 1.88 Ga Sokoman …
unstudied localities (Sheps Lake, Lac Ritchie, Hayot Lake) of the ca. 1.88 Ga Sokoman …