Site: Bili Bili

Island: Bili Bili       Lithology: NA ( Nunn et al. (2016) )

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

Near/In Geonames ID: 2099492       Wikidata ID: Q49633065       Getty Thesaurus of Geographic Names ID: None

Mindat Loc ID: None


In:

Madang Province Wikidata ID: Q326254

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. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ SpinelIg./Met. Rocks Sed. Rocks Grog Lithics/ Region
tpr459 2 2 3 4 0 3 0 0 0 0 0 4 0 0 microphaneritic, microlitic, vitric
Madang pyroxenic lithic 0 0 2 3 0 2 0 0 0 0 0 3 0 0 PNG

Slides:

Slide Fabric Possible OriginWareCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
IL_1_91 tpr459 (Madang pyroxenic lithic) Bili Bili 0 0 3 4 0 2 0 0 0 0 0 4 0 0 microphaneritic

IL_1_91

MT2 MT2
Sherd Clay and temper mix from Bili Bili (Bili Bili). Slide IL_1_91 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.

"CAUTION: Section less than 30microns. The pyroxene (10%) is pale green, angular and up to 0.4 mm across. Plagioclase grains are angular and about 0.2 mm across. There are grains containing granular mosaics of quartz, feldspar and opaques up to 0.5 mm across. Opaque minerals are subrounded, and usually skeletal. The clay is a dark brown.


References:

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