| Under such conditions biogenic carbonate may be replaced by phosphorite. |
| Uzbekistan has leading world positions in gold, uranium, copper, natural gas, tungsten, potassium salts, phosphorite, and kaolin deposits. |
| The phosphorite marks the base of the Roberts Mountains Formation at this locality. |
| Belarus also has deposits of clay, sand, chalk, dolomite, phosphorite, and rock and potassium salt. |
| Fossiliferous, thin marine shales, associated with biochemical precipitates such as glauconite and phosphorite, are common in transgressive systems tracts. |
| We have already referred in Chapter V. to large deposits of apatite or phosphorite found in Canada. |
