Development of deep-sea anoxia in Panthalassa during the Lopingian (Late Permian): Insights from redox-sensitive elements and multivariate analysis

T Onoue, K Soda, Y Isozaki - Frontiers in Earth Science, 2021 - frontiersin.org
The end-Permian mass extinction (EPME) was the most severe mass extinction event of the
Phanerozoic, and was associated with the development of global oceanic anoxia. The …

Carbon and sulfur cycling during the mid-Ludfordian anomaly and the linkage with the late Silurian Lau/Kozlowskii Bioevent

J Frýda, O Lehnert, B Frýdová, J Farkaš… - Palaeogeography …, 2021 - Elsevier
Abstract The Ludfordian (late Silurian) records one of the largest perturbations in the
Phanerozoic marine carbon cycling, the mid-Ludfordian positive δ 13 C carb excursion …

Carbon Isotope chemostratigraphy across the Permian-Triassic boundary at Chaotian, China: Implications for the global methane cycle in the aftermath of the …

M Saitoh, Y Isozaki - Frontiers in Earth Science, 2021 - frontiersin.org
During the end-Permian extinction, a substantial amount of methane (CH4) was likely
released into the ocean-atmosphere system associated with the Siberian Traps volcanism …

Carbonate associated sulfate (CAS) δ34S heterogeneity across the end-Permian mass extinction in South China

DL Johnson, TM Present, M Li, Y Shen… - Earth and Planetary …, 2021 - Elsevier
The dynamics of the marine sulfur cycle across the End-Permian Mass Extinction (EPME)
have been obscured by disagreement between sulfur isotopic records from different …

Bimineralic Middle Triassic ooids from Hydra Island: Diagenetic pathways and implications for ancient seawater geochemistry

S Varkouhi, LM Jaques Ribeiro - The Depositional Record, 2021 - Wiley Online Library
This study reports on the occurrence of formerly bimineralic, ancient, calcitic coated grains,
including half‐moon ooids and micritic to microsparitic ooids in the Middle Anisian (Middle …

Quantitative constraints on carbon cycling and temporal changes in episodic euxinia during the end-Permian mass extinction in South China

G Zhang, X Zhang, Y Shen - Chemical Geology, 2021 - Elsevier
We report the temporal and spatial C-isotopic variations of carbonate (δ 13 C carb) and
organic carbon (δ 13 C org) spanning the Permian-Triassic transition at the Xiakou and …

Evidence of sulfur isotope about the sedimentary environment of new type of polyhalite potassium ore in the northeast Sichuan Basin

W Shang, Y Zhang, K Li, E Xing, Y Peng, B Gui… - Carbonates and …, 2021 - Springer
The δ 34 S curve of sulfate from Members V–IV of the Jialingjiang Formation of the Sichuan
Basin in the Early Triassic (T 1 j 4− 5) is highly consistent with global marine sulfate, and …

Sedimentary factories and ecosystem change across the Permian–Triassic Critical Interval (P–TrCI): insights from the Xiakou area (South China)

Y Pei, JP Duda, J Reitner - PalZ, 2021 - Springer
Abstract The Permian–Triassic mass extinction included a potentially catastrophic decline of
biodiversity, but ecosystem change across this event remains poorly characterized. Here we …

Masafumi Saitoh and Yukio Isozaki4

DM Hodgson - Permian Extinctions, 2021 - books.google.com
The end-Permian extinction was one of the largest biodiversity crises in the Phanerozoic
(eg, Erwin, 2006; Alroy, 2010; Shen et al., 2011a; Stanley, 2016), and many geologic events …

[图书][B] Sulfur Isotopic Insights into the Modern and Ancient Marine Sulfur Cycles

DL Johnson - 2021 - search.proquest.com
The marine sulfur cycle plays a key role in regulating Earth's surface oxygen (O 2) levels
through its interactions with the carbon and iron cycles. Our understanding of the sulfur cycle …