Baranovskaya Marina Anatolievna RussiaMoscowLTD “GeolKhimProekt” , 107113, Moscow, Lobachika Street, 17head of fieldwork departmentBaranovs-marina@yandex.ru Author's articles Carnallite-halite Rocks and Halite of Gremyachinskoye Field’ Halogenous Formations and Their Role in Productive of Sylvinite Horizon Foundation Features of Rhythostratigraphy of Halogen Thicker and Paleogeographic Conditions of Potassium-Magnesium Mineralization in the Southwestern Deadlock Part of North-Caspian Halmeic Basin