sample 
number 
Samples 
constitution 
Analysis results 
2 
2F 
: Sand 
- A lot of quartz 
- A little of calcite and clayey 
minerals of illite kind 
2G 
: kind of calcarious 
crusts 
- A lot of Calcite 
- A very little of quartz 
3 
3F 
: Sand 
- A lot of quartz and Calcite 
3G 
: Gravel of white quartz 
Black rolled stones 
- Quartz and Calcite with traces of 
Clayey minerals 
4 
4F 
: Sand 
- A lot of quartz 
- A little of calcite 
- A little quantity of 3T dioctae- 
dric micas kind of clayey minerals 
4G 
: Black stones 
- A lot of Calcite 
- A little of quartz 
5 
5 F 
: Sand 
- a lot of quartz and a little of 
Catcite 
5G 
: Gravel led stones 
- Equal quantity of Calcite and 
dolomite . 
Figure 5