Calcrete from Sahara Desert, North Africa
Mauritania | |
| Mauritanian Geological Survey (1995) database |
Mauritanian Geological Survey (1995) database | |
| Mauritanian Geological Survey (1995) database |
Mauritanian Geological Survey (1995) database | |
| Mauritanian Geological Survey (1995) database |
| Mauritanian Geological Survey (1995) database |
Mauritanian Geological Survey (1995) database | |
Mauritanian Geological Survey (1995) database | |
Mauritanian Geological Survey (1995) database | |
| Mauritanian Geological Survey (1995) database |
Mauritanian Geological Survey (1995) database | |
| Mauritanian Geological Survey (1995) database |