“…In addition to the Ratne deposit, seven promising Paleogene phosphorite areas (polissia basin) are found: Polissia, stakhoshynska, Pivnevska, Taniushivska, Novoburlutska, Bantyshevska and Zalymanivska with a total area of 4.6 thousand square km and an estimated resources of 335 million tons of Р 2 О 5 . The deposit parts with a thickness of more than 0.3 m and Р 2 О 5 content of 5% or more are considered to be potentially valuable areas (Astrelin et al 2011).…”