Site: Tarawai

Island: Tarawai       Lithology: Limestone low island ( Nunn et al. (2016) )

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

Near/In Geonames ID: 2085780       Wikidata ID: Q15060295       Getty Thesaurus of Geographic Names ID: None

Mindat Loc ID: None


In:

East Sepik Province Wikidata ID: Q690880

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
tpr86 0 4 4 1 1 1 0 0 0 1 0 4 3 0 microphaneritic, microlitic, felsitic
Northcoast PNG type B 0 3 3 0 0 0 0 0 0 0 0 3 2 0 PNG
tpr87 0 4 4 1 1 1 0 0 0 1 0 4 3 0 microphaneritic, microlitic, felsitic
Northcoast PNG type C 0 4 4 0 0 1 0 0 0 0 0 4 2 0 PNG
tpr88 0 3 3 1 1 0 0 0 0 0 0 6 3 0 microphaneritic, microlitic, felsitic
Northcoast PNG type D 0 2 2 1 1 0 0 0 0 0 0 5 3 0 PNG
tpr89 0 3 4 1 1 0 0 0 0 1 0 4 2 0 microphaneritic, microlitic, felsitic
Northcoast PNG type E 0 2 3 0 1 0 0 0 0 0 0 3 1 0 PNG
tpr90 3 2 2 1 1 0 0 0 0 0 0 4 2 0 microphaneritic, microlitic, felsitic
Northcoast PNG type F 1 1 2 1 1 0 0 0 0 0 0 4 1 0 PNG
tpr91 0 2 4 3 2 3 0 0 0 3 0 4 3 0 microphaneritic, microlitic, felsitic
Northcoast PNG type G 0 1 2 1 1 1 0 0 0 1 0 2 1 0 PNG

Slides:

Slide Fabric Possible OriginWareCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
WD_28_6 tpr86 (Northcoast PNG type B) Aitape coast 0 4 4 1 0 0 0 0 0 1 0 3 1 0 microphaneritic, microlitic, felsitic
WD_28_16 tpr87 (Northcoast PNG type C) Aitape coast 0 4 4 1 1 1 0 0 0 0 0 4 2 0 microphaneritic, microlitic, felsitic
WD_28_20 tpr88 (Northcoast PNG type D) Aitape coast 0 3 3 1 1 0 0 0 0 0 0 5 3 0 microphaneritic, microlitic, felsitic
WD_29_8 tpr89 (Northcoast PNG type E) Aitape coast 0 2 3 1 1 0 0 0 0 0 0 3 2 0 microphaneritic, microlitic, felsitic
WD_28_24 tpr90 (Northcoast PNG type F) Aitape coast 1 1 2 1 1 0 0 0 0 0 0 4 2 0 microphaneritic, microlitic, felsitic
WD_29_21 tpr91 (Northcoast PNG type G) Aitape coast 0 1 3 2 1 2 0 0 0 1 0 3 1 0 microphaneritic, microlitic, felsitic

WD_28_6

Tarawai155_2 Tarawai155_2
Sherd 155-2 from Tarawai (Tarawai). Slide WD_28_6 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.

Type B. Sparse well sorted and rounded quartz-feldspar-lithics non-placer temper.


WD_28_16

Tarawai170_2 Tarawai170_2
Sherd 170-2 from Tarawai (Tarawai). Slide WD_28_16 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.

Type C. Abundant moderately sorted and subangular quartzofeldspathic non-placer temper sand.


WD_28_20

Tarawai155_1 Tarawai155_1
Sherd 155-1 from Tarawai (Tarawai). Slide WD_28_20 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.

Type D. Abundant moderately sorted and subangular quartzofeldspathic non-placer temper sand.


WD_29_8

Tarawai154_1 Tarawai154_1
Sherd 154-1 from Tarawai (Tarawai). Slide WD_29_8 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.

Type E. Abundant natural temper.


WD_28_24

Tarawai176_2 Tarawai176_2
Sherd 176-2 from Tarawai (Tarawai). Slide WD_28_24 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.

Type F. Abundant natural temper with sparse lithic fragments apparently added manually.


WD_29_21

Tarawai171_1 Tarawai171_1
Sherd 171-1 from Tarawai (Tarawai). Slide WD_29_21 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.

Abundant well sorted and partially placered temper, manually added and typically pyroxene-rich (Type G). Clinopyroxene dominant, but minor orthopyroxene


References:

151 North Coast PNG, 1997 (superseded by 167) (Dickinson, W.)

167 sands, tempers, NW coast PNG, 2001 (Dickinson, W.)