- Tytuł:
- Determining rock surface micro-roughness and search for new method of relative dating of glacial landforms : a case study from Fláajökull (SE Iceland) and Biferten glacier (Swiss Alps) forefields
- Autorzy:
- Dąbski, M.
- Powiązania:
- https://bibliotekanauki.pl/articles/295232.pdf
- Data publikacji:
- 2012
- Wydawca:
- Stowarzyszenie Geomorfologów Polskich
- Tematy:
-
microroughness
proglacial weathering
Fláajökull
Iceland
Biferten glacier
Swiss Alps - Opis:
- Micro-roughness was recorded on glacially abraded stones deposited since Little Ice Age by two glaciers: Fláajökull in SE Iceland (basalts) and Biferten glacier in Swiss Alps (limestones) in order to find indices of relative age of the glacial landforms. Micro-roughness of rock surfaces was analysed with use of Handysurf E35-B electronic profilometer which calculates following roughness parameters: Rz, Rzmax, Ra and Rsm. An increase in roughness parameters towards older moraines is observed in both forefields, however the change is more significant on limestone surfaces. Time-dependent surface deterioration is visible only within first decades of weathering of both types of rock, and further weathering does not cause increase in micro-roughness.
- Źródło:
-
Landform Analysis; 2012, 21; 3-8
1429-799X - Pojawia się w:
- Landform Analysis
- Dostawca treści:
- Biblioteka Nauki
Artykuł