Slide: IL_1_57

Madang style sherd. CAUTION: Section less than 30microns. Pyroxene occurs in grains up to 0.3 mm in length. Shelly fragments, are subrounded and less than 0.3 mm in length. Opaque minerals and black ferruginized grains are minor. There are some rock fragments containing pyroxene and plagioclase crystals, opaques and a trace of altered glass. Between these large grains there are abundant fine angular quartz grains.

Mineral and Rock Abundances

Fabric: tpr459 - Madang pyroxenic 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
2 2 2 3 0 3 0 0 0 0 0 3 0 0 microphaneritic

Images

Sio28_1 Sio28_1
Sherd 28/1 from Sio (New Guinea). Slide IL_1_57 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: 28/1

None

Period: None wikidata:

Site: Sio (New Guinea)

Suspected origin site: Madang

References:

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