. Biology of the seas of the Marine biology -- Soviet Union; Hydrology -- Soviet Union. 552 BIOLOGY OF THE SEAS OF THE Fig. 263a. Distribution of surface Fig. 263b. Distribution of surface salinity of salinity (%0) of the Caspian Sea in the northern Caspian Sea in June 1934 (%0) February and March 1934 (Brujevitch, (Ivanov). 1950). The difference in the salt ratio of Caspian and ocean waters {Table 227), which appeared as a result of the separation of the Caspian Sea from the ocean and which is gradually rising owing to the metamorphism by river discharge, makes it possible


. Biology of the seas of the Marine biology -- Soviet Union; Hydrology -- Soviet Union. 552 BIOLOGY OF THE SEAS OF THE Fig. 263a. Distribution of surface Fig. 263b. Distribution of surface salinity of salinity (%0) of the Caspian Sea in the northern Caspian Sea in June 1934 (%0) February and March 1934 (Brujevitch, (Ivanov). 1950). The difference in the salt ratio of Caspian and ocean waters {Table 227), which appeared as a result of the separation of the Caspian Sea from the ocean and which is gradually rising owing to the metamorphism by river discharge, makes it possible to calculate the approximate period of time of the existence of the 'lake' phase of the Caspian Sea. S. Brujevitch (1939) has calculated it in Table 228 Salinity %c Depth, m 0 50 100 200 300 Central Caspian Southern Caspian 12-59 12-61 12-66 12-65 12-68 12-68 12-72 12-74 12-76 Depth, m 400 600 800 900 Central Caspian Southern Caspian 12-76 12-82 12-78 12-84 12-84 12-87 12-90. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Zenkevich, L. A. (Lev Aleksandrovich), 1889-1970. New York, Interscience Publishers


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