Furthermore, through x-radiographic, grain size and magnetic susceptibility analyses, large-scale rhythmic changes between sand beds and fine silts were detected in the core.
The role of glaciers in producing silt is emphasized, and the sources and redistribution mechanisms are explained.
Physical soil analysis revealed a sandy loam texture with fractions of 78% sand, 10% silt and 12% clay.
The calcrete is of two types; the first one is rich in silt with low clay content, and generally overlies the mottled silty sandstone lithofacies.
Mechanical analysis was used to determine percent sand, silt and clay using a soil hydrometer method17,18.
Below the clay there is sandy soil containing only from 4-5 to 8-8 per cent, silt and clay.
The surface 15 cm layer has 69.7 % sand, 18.2 % silt and 12.0 % clay.
The soil texture is 46 % sand, 46 % clay and 8 % silt.
