Referee Comment on Yanchilina et al. submission to Climate of the Past

Abstract

General comments. Yanchilina et al. present a compilation of geochemical data that is used to infer periods of connection/disconnection within the Black Sea-Marmara Sea-Mediterranean Sea system during MIS 3. The authors also present seismic profiles in order to determine the level of the Marmara Sea Lake during MIS 3 and hence provide a RSL maximum boundary of 65-70 mbsl during MIS 3, with a possible intrusion of marine waters around 50 kyrs BP. I have major concerns regarding the study (see below). In its present form (poor use of the existing literature, poor description of the methods, misuse of some set of previously published data, lack of confident chronological constraints for interpretation of C1