Table T1. Classification of volcanic lithologies, Expedition 334.
| Size | Mixture | ||
|---|---|---|---|
| Tephra | Tuffite | Eplicastic deposit | |
| >64 mm | Pyroclastic breccia | Tuffaceous breccia/conglomerate | Breccia/Conglomerate |
| 2–64 mm | Lapillistone/Lapilli tuff | Tuffaceous gravel | Gravel |
| 64 µm–2 mm | Coarse ash tuff | Tuffaceous sandstone | Sandstone |
| 2–64 µm | Fine ash tuff | Tuffaceous siltstone | Siltstone |
| <2 µm | Volcanic dust | Tuffaceous volcanic dust | Claystone |
| Amount of pyroclasts (%): | ≥75 | <75 to >25 | ≤25 |
Modified classification scheme after Fisher and Schmincke (1984).
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