The late Ediacaran Dzhurzhivka Beds phosphorite conglomerates record an early stage of phosphogenesis in SW Baltica
Ion Francovschi·Andrey Bekker·Bartosz Budzyń·Relu-Dumitru Roban·Ryosuke Nagao·Leonid Shumlyanskyy·Takafumi Hirata·Kosuke T. Goto
• High REE (∼2000 ppm) Dzhurzhivka phosphorites challenge age-based prospectivity. • Terrigenous contamination indicated by low Y/Ho ratio. • MREE enrichment during early diagenesis, LREE depletion during late diagenesis. • Positive Eu anomalies indicate upwelling of hydrothermally-influenced, P-rich waters. • Sediment diagenesis, not seawater composition, led to REE phosphorite endowment. Late Ediacaran–early Cambrian sedimentary phosphorites offer insights to seawater geochemistry and phosphor