Site: Watinglo

Island: New Guinea       Lithology: NA ( Nunn et al. (2016) )

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

Near/In Geonames ID: 2083259       Wikidata ID: None       Getty Thesaurus of Geographic Names ID: None

Mindat Loc ID: None


In:

Sandaun (West Sepik) Province Wikidata ID: Q753689

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
tpr181 0 1 5 0 4 1 0 0 0 0 0 2 0 0 vitric, felsitic
Northcoast PNG hornblendic 0 1 5 0 3 1 0 0 0 0 0 2 0 0 PNG
tpr181a 0 0 5 0 0 1 0 0 0 0 0 4 0 0 vitric, felsitic
Northcoast PNG volcanic 0 0 5 0 0 1 0 0 0 0 0 4 0 0 PNG
tpr182 0 4 5 0 0 0 0 0 0 0 0 0 0 0 na
Northcoast PNG quartzose-feldspathic 0 4 5 0 0 0 0 0 0 0 0 0 0 0 PNG
tpr183 6 1 1 0 0 0 0 0 0 0 1 0 0 0 na
Northcoast PNG calcareous type A 6 1 1 0 0 0 0 0 0 0 1 0 0 0 PNG
tpr184 6 1 1 0 1 1 0 0 0 0 0 1 1 0 microphaneritic, argillitic
Northcoast PNG calcareous type B 6 0 1 0 0 1 0 0 0 0 0 0 0 0 PNG

Slides:

Slide Fabric Possible OriginCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
WD_80_2 tpr181 (Northcoast PNG hornblendic) unknown 0 1 5 0 4 1 0 0 0 0 0 2 0 0 vitric, felsitic
WD_80_10 tpr181a (Northcoast PNG volcanic) unknown 0 1 5 0 0 1 0 0 0 0 0 4 0 0 vitric, felsitic
WD_81_11 tpr182 (Northcoast PNG quartzose-feldspathic) unknown 0 4 5 0 0 0 0 0 0 0 0 0 0 0 na
WD_81_13 tpr182 (Northcoast PNG quartzose-feldspathic) unknown 0 4 5 0 0 0 0 0 0 0 0 0 0 0 na
WD_81_2 tpr183 (Northcoast PNG calcareous type A) unknown 6 1 1 0 0 0 0 0 0 0 1 0 0 0 na
WD_81_3 tpr184 (Northcoast PNG calcareous type B) unknown 6 1 1 0 1 0 0 0 0 0 0 1 1 0 microphaneritic, argillitic

WD_80_2

WATA5_12 WATA5_12
Sherd WATA5-12 from Watinglo (New Guinea). Slide WD_80_2 from Dickinson Collection, Bishop Museum. x4 Magnification PPL (left) XPL (right). Scale bar: 0.5mm. High resolution image or full slide in VIMIPO (user: Guest pwd: Guest) with higher exposure. Imaged by K. Hardy and M. Leclerc, ANU.

Dominant plagioclase feldspar and hornblende varieties are the only ferromagnesian silicate grains, some rock fragments with glassy to felsitic (devitrified glass) internal textures, moderately sorted, subangular to subrounded, fine to medium volcanic sand of probable fluvial origin.


WD_80_10

WATC_5 WATC_5
Sherd WATC-5 from Watinglo (New Guinea). Slide WD_80_10 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.

Non-hornblendic volcanic sand temper.


WD_81_11

WATA8_7 WATA8_7
Sherd WATA8-7 from Watinglo (New Guinea). Slide WD_81_11 from Dickinson Collection, Bishop Museum. x4 Magnification PPL (left) XPL (right). Scale bar: 0.5mm. High resolution image or full slide in VIMIPO (user: Guest pwd: Guest). Imaged by K. Hardy and M. Leclerc, ANU.

Quartzo-feldspathic sand lacking any calcareous grains of coastal origin and probably collected as stream sand. Felspars are plagioclase.


WD_81_13

WATA8_42 WATA8_42
Sherd WATA8-42 from Watinglo (New Guinea). Slide WD_81_13 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.

Quartzo-feldspathic sand lacking any calcareous grains of coastal origin and probably collected as stream sand. Felspars are plagioclase.


WD_81_2

WATA5-2 has a full slide scan available (user: Guest pwd: Guest). Imaged by K. Hardy and M. Leclerc, ANU.

Calcareous and grains of chrome spinel (translucent red, isotropic), diagnostic of derivation from peridotite.


WD_81_3

WATA7_3 WATA7_3
Sherd WATA7-3 from Watinglo (New Guinea). Slide WD_81_3 from Dickinson Collection, Bishop Museum. x4 Magnification PPL (left) XPL (right). Scale bar: 0.5mm. High resolution image or full slide in VIMIPO (user: Guest pwd: Guest). Imaged by K. Hardy and M. Leclerc, ANU.

Calcareous and grains of argillite of sedimentary or metasedimentary origin.


References:

279 Watinglo, Lachitu, PNG, 2009 (Dickinson, W.)