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Showing results for tags 'mercury contamination'.
Not the ones you eat. Mercury levels are high in late Cretaceous fossil shellfish. The shellfish can indicate sea temperatures with a special carbonate analysis too. So researchers can compare rising mercury from the Deccan Traps eruptions to rising temperatures at the same time. Surprisingly high levels of mercury contamination occurred. https://m.phys.org/news/2019-12-fossil-shells-reveal-global-mercury.html