Blar i forfatter "Kipp, Michael A."

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    • Redox fluctuations, trace metal enrichment and phosphogenesis in the ~2.0 Ga Zaonega Formation 

      Kipp, Michael A.; Lepland, Aivo; Buick, Roger (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-24)
      The ~2.0 Ga Zaonega Formation (ZF) holds one of the oldest phosphorites in the geologic record, reaching >15% P<sub>2</sub>O<sub>5</sub>. Understanding the depositional conditions that enabled sedimentary phosphorus enrichment in this unit will thus help us to interpret the significance of the temporal distribution of phosphorites in Earth’s early history. Here we use an array of major and trace ...