|
Mutterboden |
|
|
Unterboden |
|
|
Steinsplitt |
|
|
Makadam, Teermakadam und Ölsand |
|
|
Makadam |
|
|
Teermakadam |
|
|
Ölsand |
|
|
Ton und Kaolin |
|
|
Ton |
|
|
Kaolin |
|