Fabric Code: tpr119

Asio sparse-pyroxenic-vitric

Abundant clinopyroxene mineral grains and volcanic rocks fragments of brown andesitic glass. Very sparse, moderately sorted, subrounded medium- to coarse-grained temper sand, manually added to to silty clay paste rich in glassy fragments, probably tephra, and opaque iron oxide grains.

Sites:

Mineral and Rock Abundances

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. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ SpinelIg./Met. Rocks Sed. Rocks Grog Lithics/ Region
Max 0 0 2 4 0 2 0 0 0 0 0 4 0 0 vitric
Min 0 0 2 4 0 2 0 0 0 0 0 4 0 0 Solomons

Representative slides:

Slide Site Possible OriginCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
WD_35_7 Asio (Bougainville) Central Bougainville 0 0 2 4 0 2 0 0 0 0 0 4 0 0 vitric

WD_35_7

Asio60A_7 Asio60A_7
Sherd 60A-7 from Asio (Bougainville). Slide WD_35_7 from Dickinson Collection, Bishop Museum. x4 Magnification PPL (left) XPL (right). Scale bar: 0.5mm. High resolution image in VIMIPO. Imaged by K. Hardy and M. Leclerc, ANU.

Very sparse, moderately sorted, subrounded medium- to coarse-grained temper sand. Prehistoric sherd. Probably beach. Manually added temper. Glassy fragments in clay. Abundant clinopyroxene and lithics.


References:

153 Bougainville, Buka, Nissan, Ontong Java, Shortland, Solomon, 1997 (Dickinson, W.)

152 Bougainville, PNG, 1997 (Dickinson, W.)