The History of the Laptev Sea: The Great Transgression and Its Little Eyewitnesses

Мұқаба

Дәйексөз келтіру

Толық мәтін

Ашық рұқсат Ашық рұқсат
Рұқсат жабық Рұқсат берілді
Рұқсат жабық Рұқсат ақылы немесе тек жазылушылар үшін

Аннотация

At the maximum of the last glaciation, the shelf of the Laptev Sea was drained, and the coast retreated hundreds of kilometers to the north. With the onset of warming, the sea level began to rise rapidly, flooding the coastal plain. To date, the course of the postglacial sea-level rise has already been gradually reconstructed. We know when the flooding began, how and at what speed the sea rised, where the bulk of the sediments accumulated, and when the transgression stopped. But what was happening in the water column at that time? What water masses prevailed on the shelf, how did the river mouths move southward, what were the temperature and salinity of the surface waters? Has North Atlantic water got to the shelf? Microscopic planktonic organisms that lived at that time and were buried in the bottom sediments of the shelf can tell us about this. Our results of studies of the microalgae complexes in four sediment cores from the shelf and continental slope help to reconstruct the environmental history of the Laptev Sea for the last 17.5 cal. ka.

Авторлар туралы

T. Klyuvitkina

Lomonosov Moscow State University

Email: t.klyuvitkina@mail.ru
Moscow, Russia

Ye. Polyakova

Lomonosov Moscow State University

Email: ye.polyakova@mail.ru
Moscow, Russia

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