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Abstract Coupled Mo-U isotope data from the Upper Devonian Kettle Point Formation (Ontario, Canada) provide a cautionary tale regarding interpretation of global ocean redox conditions using data from euxinic black… Click to show full abstract
Abstract Coupled Mo-U isotope data from the Upper Devonian Kettle Point Formation (Ontario, Canada) provide a cautionary tale regarding interpretation of global ocean redox conditions using data from euxinic black shales. In the Gore of Chatham core, the Kettle Point black shales have high Mo concentrations (48–473 μg/g) and consistently high Mo/U ratios (≥3 times the Mo/U ratio of modern seawater), suggesting a euxinic depositional environment. These shales yield an inverse correlation (r = 0.89, p
Keywords:
global ocean;
isotope;
black shales;
upper devonian;
ocean redox;
inverse correlation
Journal Title: Geochimica et Cosmochimica Acta
Year Published: 2020
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Journal Title: Geochimica et Cosmochimica Acta
Year Published: 2020
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!