Calcareous-Quartzose: Dominated by calcareous and quartz inclusions.
Backarc Quartzose: Clinopyroxenes, plagioclase, and lithics of basalts or shoshonite (a basaltic trachyandesite), dominate with quartz.
Late Far Western Lapita (2980 - 1800 BP)
Transitional Far Western (2350 - 1900 BP)
Middle Far Western Lapita (3050 - 2300 BP)
| 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 | 4 | 3 | 2 | 1 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | na |
| Min | 4 | 3 | 2 | 1 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | Bismarck |
| Slide | Site | Possible Origin | Ware | Cal. | Quartz | Feldspar | Pyroxene | Amphibole | Opaques | Olivine | Biotite | Muscovite | Epidote | Garnet/ Spinel | Ig./Met. Rocks | Sed. Rocks | Grog | Lithics |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WD_31_14 | Lasigi (New Ireland) | Admiralty | Middle Far Western Lapita (3050 - 2300 BP) | 4 | 3 | 2 | 1 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | na |
Hybrid (mixed terrigenous-calcareous) beach sand temper of anomalous composition unlikely to derive from anywhere on New Ireland or within the Bismarck Archipelago.