Yuriy Alexandrovich Lavrushin contribution to the study of the Quaternary Period: to his 90<sup>th</sup> anniversary
The paper is about biography, organizational and scientific work of Doctor of Sciences, Chairman of the Commission for the Study of the Quaternary Yuriy Alexandrovich Lavrushin (born 1931). His contribution to the Quaternary research, extensive contacts, editorial activity and longtime fruitful work at the Geological Institute of the AS USSR / RAS are indicated.