The collection includes materials of the XXVI Youth Scientific School-Conference dedicated to the memory of members of . -corr. AN USSR K. About. Kratts and Academician of the Russian Academy of Sciences F . P. Mitrofanova, represented by young scientists from academic, educational and industrial organizations in Moscow, St. Petersburg, Petrozavodsk, Apatits, Voronezh, Chernogolovki, Tomsk, Tyumen, Syktyvkar, Ukhta, Olenegorsk, Simferopol, as well as Uzbekistan and Vietnam . The collection consists of six sections: regional geology, geochronology and stratigraphy; geochemistry, mineralogy and petrology; minerals; geophysics and the deep structure of the earth; geoecology and quaternary geology; guide geological excursions. Most of the articles are devoted to solving not only regional problems of geology, but also has general scientific applied and methodological significance. The collection will be useful to a wide range of students, postgraduates and researchers of geological and related specialties .