Site: Asio

Island: Bougainville Lithology: Composite high island ( Nunn et al. (2016) )

Lithology and Age: Cenozoic sedimentary rocks ( Chorlton (2007) ) Macrostrat Geological Map Link

Near/In Geonames ID: 2094023 Wikidata ID: None Getty Thesaurus of Geographic Names ID: None

Mindat Loc ID: None

In:

Bougainville Island Wikidata ID: Q201766

Bougainville Province Wikidata ID: Q18826

Volcanoes:

Bagana: Andesite / Basaltic Andesite, Composite type, Lava cone.

Billy Mitchell: Andesite / Basaltic Andesite, Caldera type, Caldera.

Takuan Group: Andesite / Basaltic Andesite, Composite type, Compound.

Loloru: Andesite / Basaltic Andesite, Composite type, Compound.

Bakanovi: , Composite type, Stratovolcano.

Note that to see the 'Geology' layer (layer options in top right corner) you may have to zoom out.

Fabrics:

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
tpr119	0	0	2	4	0	2	0	0	0	0	0	4	0	0	vitric
Asio sparse-pyroxenic-vitric	0	0	2	4	0	2	0	0	0	0	0	4	0	0	Solomons

Slides:

Slide	Fabric	Possible Origin	Cal.	Quartz	Feldspar	Pyroxene	Amphibole	Opaques	Olivine	Biotite	Muscovite	Epidote	Garnet/ Spinel	Ig./Met. Rocks	Sed. Rocks	Grog	Lithics
WD_35_7	tpr119 (Asio sparse-pyroxenic-vitric)	Central Bougainville	0	0	2	4	0	2	0	0	0	0	0	4	0	0	vitric

WD_35_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 (user: Guest pwd: Guest). 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.