Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Powiadomienia systemowe

Sesja wygasła!
Sesja wygasła!

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: lacustrine sediment

Sortuj według:

Ogranicz wyniki do:

Daphnia remains from the sediment of lake somaslampi (nw finnish lapland) and Lake Wigry (ne Poland)

Szeroczyńska K., Zawisza E.

Studia Quaternaria

2005

Vol. 22

55-57

In this paper remains of Daphnia found in the sediments retrieved from Lake Somaslampi (NW Finnish Lapland) and Lake Wigry (NE Poland) are presented and compared with Daphnia remains found by D.G. Frey in Greenland. Daphniapulex haedshields and shells were found in the early Holocene sediments of Lake Somaslampi. In the early Holocene sediments of Lake Wigry only postabdominal claws and ephippia of Daphnia were abundant, but in the sediments deposited during the last 50 years very well preserved shells of Daphnia longispina-group were found. The prezent findings indicate that the good preservation of Daphnia haedshields and shells may be more common than previously thought. It is possible that the special conditions they need to be preserved is cold climate.

210 Pb dating of young holocene sediments in High-mountains lakes of the Tatra Mountains

Kotarba A., Łokas E., Wachniew P.

Geochronometria

2002

Vol. 21

73-77

Topmost sediments in two oligotrophic lakes of the High Tatra Mountains were studied in terms of sedimentological characteristics and 210 Pb dating. An alpine lake sediments are important source of information on geomorphic process activity in glacial catchments. Two different sediment transfer models are represented. In Morskie Oko lake basin majority of extreme, short lasting geomorphic events triggered on the surrounding slopes are registred in lake sediments (minerogenic laminae), while in Zelene Pleso lake only an effect of pro-longed flooding periods are to be seen. The sedimentation rates in both lakes are similar.