This dataset documents a survey of iodine-to-calcium, I/(Ca+Mg), redox proxy data from Lower–Middle Ordovician carbonate strata at various localities in Baltoscandia. Samples derive from Grönhögen, Ho

DataONE2023-10-09 更新30

Geochemical records reveal continued and differential marine redox change associated with Late Ordovician climate and mass extinctions

古海洋氧化还原

晚奥陶纪生物灭绝机制

The Ordovician (Hirnantian; 445 Ma) hosts the second most severe mass extinction in Earth history, coinciding with Gondwanan glaciation and a growing geochemical evidence for marine anoxia. It remains

DataCite Commons2024-01-10 更新20

Biogeochemical redox proxies in sediments from Schandelah during the Toarcian (Early Jurassic)

古海洋氧化还原

沉积物地球化学指标

Author contributions: The sampling was led by Bas van de Schootbrugge and measurements performed by Nina Papadomanolaki, with supervision of Niels A. G. M. van Helmond and Caroline P. Slomp. Measure

DataONE2024-07-19 更新30

Data for: Middle–Upper Ordovician (Darriwilian–Sandbian) paired carbon and sulfur isotope stratigraphy from the Appalachian Basin, USA: Implications for dynamic redox conditions spanning the peak of the Great Ordovician Biodiversification Event

同位素地层学

古海洋氧化还原

Raw data set for the article: Middle–Upper Ordovician (Darriwilian–Sandbian) paired carbon and sulfur isotope stratigraphy from the Appalachian Basin, USA: Implications for dynamic redox conditions sp

NIAID Data Ecosystem20

Data for: Ocean redox conditions between the Snowballs – geochemical constraints from Arena Formation, East Greenland

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