Nymphean terrace in the area of the Burgas Lakes

Авторы: Dimitar Sinnyovsky, Natalia Kalutskova, Nikolai Dronin, Dimka Sinnyovska
Сборник: REVIEW OF THE BULGARIAN GEOLOGICAL SOCIETY
Том: 79
Год издания: 2018
Место издания: BULGARIAN GEOLOGICAL SOCIETY Sofia
Первая страница: 115
Последняя страница: 116
Аннотация: The Nymphean transgression that occurred in the Middle Age about 1000 years ago raises the sea level by 2 m above the present sea level and expanded the link between Burgas Lakes and Black sea. The firth sedimentation resulted in the accumulation of sandy-silty deposits and humus mad containing recent bivalve shells. After the sea level drops to the modern sea level these deposits remained in the form of a flat terrace named after the Nymphean transgression. This terrace, usually covered with a cane, is well traceable along the shoreline of the Burgas Lakes. Well preserved outcrop of humus mad covering Neoeuxinian beach sand was discovered at the eastern shoreline of the Atanasovsko Lake 1.5 m above the modern lake surface, which may be identified with the Nymphean accumulative terrace, formed during the Мiddle Аges 1000 years ago.
Добавил в систему: Дронин Николай Михайлович

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