Mineral and Rock Abundances
| None (0) | Minor (1) | Few (2) | Common (3) | Frequent (4) | Major (5) | Very Dominant (6) |
| 0% | 0-5% | 5-15% | 15-30 % | 30-50% | 50-70% | 70-100% |
| Name | Cal. | Quartz | Feldspar | Pyroxene | Amphibole | Opaques | Olivine | Biotite | Muscovite | Epidote | Garnet/ Spinel | Ig./Met. Rocks | Sed. Rocks | Grog | Lithics/ Region |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max | 0 | 0 | 5 | 2 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 3 | 0 | 0 | microphaneritic |
| Min | 0 | 0 | 5 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | Bismarck |
Representative slides:
| Slide | Site | Possible Origin | Cal. | Quartz | Feldspar | Pyroxene | Amphibole | Opaques | Olivine | Biotite | Muscovite | Epidote | Garnet/ Spinel | Ig./Met. Rocks | Sed. Rocks | Grog | Lithics |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WD_31_16 | Lasigi (New Ireland) | New Ireland | 0 | 0 | 5 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | microphaneritic |
WD_31_16
Poorly sorted, fine-grained volcanic sands of likely stream (non-local) origin.