Slide: IL_1_6

Madang style. CAUTION: Section less than 30microns. Quartz and plagioclase (about 10%) are less than 0.3 mm in length. There are some large volcanic rock fragments which contain plagioclase and pyroxene laths with minor iron oxide and also volcanic rock fragments which contain potash feldspar, plagioclase and quartz. Pyroxene grains are minor components and are up to 0.4 mm in length. There are also ferruginized clasts and iron oxides. The clay is red brown.

Mineral and Rock Abundances

Fabric: tpr460 - Madang feldspathic lithic

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 4 2 0 1 0 0 0 0 0 4 0 0 microphaneritic, microlitic, lathwork

Images

Sio6_6 Sio6_6
Sherd 6/6 from Sio (New Guinea). Slide IL_1_6 from I Lilley. 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: 6/6

None

Period: None wikidata:

Site: Sio (New Guinea)

Suspected origin site: Madang

References:

Prehistoric exchange in the Vitiaz Strait, Papua New Guinea (Lilley, I.)