Feldspathic Igneous-Amphibolic: Dominated by feldspar inclusions, with igneous lithics and amphiboles.
Andesitic Arc: Dominated by andesite and basalt lithic fragments, with microlitic, felsitic and vitric textures, and the andesite minerals (plagioclase, clinopyroxene and sometimes hornblende).
Early Far Western Lapita (3500 - 2770 BP)
Post Lapita Buka (2200 - 0 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 | 0 | 1 | 6 | 2 | 2 | 3 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | 0 | microlitic, felsitic, microphaneritic, chert |
| Min | 0 | 0 | 4 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 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_32_24 | Nissan (Nissan) | New Ireland or Central Solomons | Post Lapita Buka (2200 - 0 BP) | 0 | 1 | 5 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | 0 | microlitic, felsitic, microphaneritic, chert |
| WD_38_3 | Nissan (Nissan) | New Ireland | Early Far Western Lapita (3500 - 2770 BP) | 0 | 0 | 5 | 1 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | microlitic, felsitic, microphaneritic |
| WD_38_1 | Nissan (Nissan) | New Ireland | Early Far Western Lapita (3500 - 2770 BP) | 0 | 0 | 5 | 1 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | microlitic, felsitic, microphaneritic |
| WD_38_2 | Nissan (Nissan) | New Ireland | Early Far Western Lapita (3500 - 2770 BP) | 0 | 0 | 4 | 1 | 2 | 3 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | microlitic, felsitic, microphaneritic |
| WD_38_7 | Nissan (Nissan) | New Ireland | Early Far Western Lapita (3500 - 2770 BP) | 0 | 0 | 5 | 2 | 2 | 3 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | microlitic, felsitic, microphaneritic |
Chert/metachert, quartzose/quartzite, felsite, and siltstone present. Some plagioclase altered albite.
Feldspathic sand temper.
Feldspathic.
Feldspathic sand temper.
Feldspathic.