Cut drill core section of Estonian phosphorite

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Sophie Graul
Tallinn University of Technology, Tallinn, Estonia and France

Cut section of shelly phosphorites from the Aseri deposit.
Shelly phosphorites are Lower Ordovican formation, which consist of remnants of brachiopods in sandstone.

https://doi.org/10.1016/j.gexplo.2023.107311

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