- Tytuł:
-
Poligony mrozowe w okolicy jeziora Mývatn (N Islandia) – wstępne wyniki badań
Frost polygons in the vicinity of Lake Mývatn (Northern Iceland) – preliminary research findings - Autorzy:
- Dabski, M.
- Powiązania:
- https://bibliotekanauki.pl/articles/2084788.pdf
- Data publikacji:
- 2009
- Wydawca:
- Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
- Tematy:
-
badania naukowe
Islandia Polnocna
tefrochronologia
roslinnosc
Jezioro Myvatn
klimat
temperatura powietrza - Opis:
- The short article describes frost polygons developed in the loessial material north east of Lake Mývatn in Northern Iceland, 390 m a.s.l. The area has a mean annual air temperature of +1.5°C and no permafrost. The diameters of the polygons reach abo ut several dozen of metres, and furrows 40 cm deep and 1 m wide are developed on frost wedges. A cross-section of a single frost wedge revealed disturbed tephra layers deposited probably between 2600 BP and 1362 AD. It can be concluded that the development of the polygons began about 2200 BP and culminated in the Little Ice Age, nowadays the structures are relict. Therefore, the polygons in the Mývatn area represent a good record of the climatic changes which occurred during Subatlanticum.
- Źródło:
-
Prace i Studia Geograficzne; 2009, 41; 53-58
0208-4589 - Pojawia się w:
- Prace i Studia Geograficzne
- Dostawca treści:
- Biblioteka Nauki
Artykuł