Site: Pea

Island: Tongatapu       Lithology: Limestone high island ( Nunn et al. (2016) )

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

Near/In Geonames ID: 4032363       Wikidata ID: None       Getty Thesaurus of Geographic Names ID: None

Mindat Loc ID: None


In:

Tongatapu Island Wikidata ID: Q620452

Tongatapu Group Wikidata ID: Q49296865

Tonga Wikidata ID: Q678

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
tpr371 2 0 6 3 0 2 0 0 0 0 0 4 0 0 vitric, microlitic
Nayau-Lakeba feldspathic 0 0 4 1 0 1 0 0 0 0 0 2 0 0 Fiji
tpr437 0 3 6 4 4 2 0 0 0 0 0 3 0 0 microlitic, plutonite, vitric
Eua gabrroic 0 1 3 1 1 2 0 0 0 0 0 2 0 0 Tonga
tpr438 0 1 3 6 0 1 1 0 0 0 0 2 0 0 na
Tongatapu placer 0 0 2 6 0 1 0 0 0 0 0 1 0 0 Tonga
tpr440 0 1 3 5 0 3 1 0 0 0 0 3 0 0 na
Tongatapu partial placer 0 0 2 3 0 1 0 0 0 0 0 2 0 0 Tonga

Slides:

Slide Fabric Possible OriginCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
WD_71_10 tpr371 (Nayau-Lakeba feldspathic) Lakeba 0 0 5 1 0 1 0 0 0 0 0 4 0 0 microlitic
WD_71_4 tpr440 (Tongatapu partial placer) Tongatapu 0 0 3 5 0 1 1 0 0 0 0 3 0 0 microlitic, felsitic, vitric
WD_71_7 tpr438 (Tongatapu placer) Tongatapu 0 1 2 6 0 1 1 0 0 0 0 1 0 0 microlitic, felsitic, vitric
WD_71_8 tpr438 (Tongatapu placer) Tongatapu 0 1 2 6 0 1 0 0 0 0 0 2 0 0 microlitic, felsitic, vitric

WD_71_10

Tongatapu_TO_6_407 Tongatapu_TO_6_407
Sherd TO.6.407 from Pea (Tongatapu). Slide WD_71_10 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.

Feldspathic. Imported.


WD_71_4

Tongatapu_TO_1_247 Tongatapu_TO_1_247
Sherd To1_247 from Pea (Tongatapu). Slide WD_71_4 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.

Partial placer.


WD_71_7

Tongatapu_TO_6_1475 Tongatapu_TO_6_1475
Sherd To6_1475 from Pea (Tongatapu). Slide WD_71_7 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.

Placer, Py index 0.85.


WD_71_8

Tongatapu_TO_1_2017 Tongatapu_TO_1_2017
Sherd To1_2017 from Pea (Tongatapu). Slide WD_71_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.

Placer. Orthopyroxenes and clinopyroxene.


References:

183 Tongatapu, Tonga 1999 (Dickinson, W.)