| Code: | Description: |
| OOSL | oolitic siltstone |
| ORG | organic deposits |
| PEAT | peat |
| PEGM | pegmatite |
| PELI | pelite |
| PHOS | phosphates |
| PHYL | phyllite |
| POLY | polyhalite |
| POMU | potassic mudstone |
| PRPY | porphyry |
| PSAL | potassium salt |
| PSAM | psammite |
| PUMI | pumice |
| PYRO | pyroclastic rock |
| QTZT | quarzite |
| RFLO | rock flour |
| RHYO | rhyolite |
| ROOT | rootlet bed (seatearth) |
| SACL | sandy claystone |
| SAND | sand |
| SCCL | siliciclastics |
| SCHI | schist |
| SDLM | sandy limestone |
| SDST | sandstone |
| SED | sedimentary |
| SERP | serpentinite |
| SHAL | shale |
| SHCL | shelly claystone |
| SHEL | shell bed (coquina) |
| SHLS | shale/limestone |
| SHSD | shelly sand |
| SHSS | shale/sandstone |
| SILC | silica rocks |
| SILT | silt |
| SLAT | slate |
| SLCL | silty claystone |
| SLMD | silty mudstone |
| SLPH | sulphate |
| SLSD | silty sandstone |
| SLSH | silty shale |
| SLST | siltstone |
| SOIL | soil |
| SPIC | spiculite |
| SPIL | spilite |
| SPLM | spiculitic limestone |
| SSLS | sandstone/limestone |
| SYEN | syenite |
| SYLV | sylvite |
| TFCL | tuffaceous claystone |
| TFMD | tuffaceous mudstone |
| TFSH | tuffaceous shale |
| TFSL | tuffaceous siltstone |
| TFSS | tuffaceous sandstone |
| TRAC | trachyte |
| TUFF | tuff |
| Page 3 of 4 | 07/07/2004 |