RARE-EARTH MINERALIZATION IN CARBONACEOUS SHALE FORMATION ROGOVSKIY TIM-YASTREBOVSKOY STRUCTURE, VORONEZH CRYSTALLIN MASSIF
<i>In carbonaceous shales Rogue Formation Tim-Yastrebovskoy structure rare-earth mineralization is installed, which is presented allanite [CaREEAl</i><sub><i>2</i></sub><i>Fe</i><sup><i>2+</i></sup><i>Si</i><sub><i>3</i></sub><i>O</i><sub><i>11</i></sub><i>O(OH)], bastnaesite [(Ce,La)(CO</i><sub><i>3</i></sub><i>)F], synchysite [Ca(Ce,La,Nd)(CO</i><sub><i>3</i></sub><i>)</i><sub><i>2</i></sub><i>F] and monazite [(Ce,La,Nd,Th)PO</i><sub><i>4</i></sub><i> and REE-containing apatite. Parageneses were explored in detail and features of the chemical composition of rare earth minerals</i>