Slide: WD_105_3

Volcanic (Andesitic). Andesitic volcanic sand , moderately well sorted, subrounded volcanic sand, predominantly volcanic rock fragments, mainly microlitic but partly felsitic or glassy, and also including some microcrystalline fragments of hypabyssal igneous rocks plagioclase feldspar, and minor clinopyroxene.

Mineral and Rock Abundances

Fabric: tpr172 - Taumako andesitic

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%
Cal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
0 1 3 1 0 1 0 0 0 0 0 6 0 0 microlitic, vitric, felsitic, microphaneritic

Images

taumako_78_731 taumako_78_731
Sherd 78-731 from Taumako (Taumako). Slide WD_105_3 from Dickinson Collection, Bishop Museum. x4 Magnification PPL (left) XPL (right). Scale bar: 0.5mm. High resolution image in VIMIPO (user: Guest pwd: Guest). Imaged by K. Hardy and M. Leclerc, ANU.

Sherd: 78-731

None

Period: None wikidata:

Site: Taumako (Taumako)

Suspected origin site: Taumako

References:

077, 78, 79 Taumako, Solomon - Appendix 6 (see WRD Rept 269) (Dickinson, W.)