Flood basalts and mass extinctions

ME Clapham, PR Renne - Annual Review of Earth and …, 2019 - annualreviews.org
Flood basalts were Earth's largest volcanic episodes that, along with related intrusions, were
often emplaced rapidly and coincided with environmental disruption: oceanic anoxic events …

Quantifying early marine diagenesis in shallow-water carbonate sediments

ASC Ahm, CJ Bjerrum, CL Blättler, PK Swart… - … et Cosmochimica Acta, 2018 - Elsevier
Shallow-water carbonate sediments constitute one of the most abundant and widely used
archives of Earth's surface evolution. One of the main limitations of this archive is the …

The Triassic–Jurassic transition–A review of environmental change at the dawn of modern life

SD Schoepfer, TJ Algeo, B van de Schootbrugge… - Earth-Science …, 2022 - Elsevier
Abstract The Triassic–Jurassic transition, which is here broadly defined as extending from
the Late Triassic through the Early Jurassic (~ 237 Ma to 174 Ma), was an important interval …

Anomalous marine calcium cycle linked to carbonate factory change after the Smithian Thermal Maximum (Early Triassic)

H Zhao, TW Dahl, ZQ Chen, TJ Algeo, L Zhang… - Earth-Science …, 2020 - Elsevier
Extreme greenhouse warming in the latest Permian played a key role in the largest animal
extinction event ever recorded in Earth history. The extinction was likely triggered by …

Calcium isotope compositions of subduction-related leucite-bearing rocks: Implications for the calcium isotope heterogeneity of the mantle and carbonate recycling in …

H Ren, M Casalini, S Conticelli, C Chen… - … et Cosmochimica Acta, 2024 - Elsevier
Large Ca isotope variations recorded in mantle xenoliths and mantle-derived igneous rocks
have been widely used to decode the origin of mantle heterogeneity, especially to trace …

Uranium isotope evidence for an expansion of marine anoxia during the end‐T riassic extinction

AB Jost, A Bachan… - Geochemistry …, 2017 - Wiley Online Library
The end‐Triassic extinction coincided with an increase in marine black shale deposition and
biomarkers for photic zone euxinia, suggesting that anoxia played a role in suppressing …

Conodont calcium isotopic evidence for multiple shelf acidification events during the Early Triassic

H Song, H Song, J Tong, GW Gordon, PB Wignall… - Chemical …, 2021 - Elsevier
The marine calcium (Ca) cycle is controlled by rates of continental weathering, seawater pH,
and carbonate deposition on the seafloor and is linked to atmospheric CO 2, climate …

Calcium isotopes in deep time: Potential and limitations

N Gussone, ASC Ahm, KV Lau, HJ Bradbury - Chemical Geology, 2020 - Elsevier
Calcium is an essential element in the biogeochemical cycles that regulate the long-term
climate state of Earth. The removal of CO 2 from the ocean-atmosphere system is controlled …

[HTML][HTML] Uranium isotope evidence for extensive seafloor anoxia after the end-Triassic mass extinction

A Somlyay, L Palcsu, GI Kiss, MO Clarkson… - Earth and Planetary …, 2023 - Elsevier
The end-Triassic extinction (ETE) ranks as one of the 'Big Five'biotic crises of the
Phanerozoic and is thought to be triggered by volcanism of the Central Atlantic Magmatic …

Coupled δ44/40Ca, δ88/86Sr, and 87Sr/86Sr geochemistry across the end-Permian mass extinction event

J Wang, AD Jacobson, H Zhang, J Ramezani… - … et Cosmochimica Acta, 2019 - Elsevier
We report high-resolution, high-precision δ 44/40 Ca, δ 88/86 Sr, and 87 Sr/86 Sr records
spanning the Permian-Triassic boundary (PTB) from the Meishan and Dajiang carbonate …