Fabric Code: tpr438

Tongatapu placer

Indigenous to Tongatapu. Orthopyroxenes as well as clinopyroxenes.

Sites:

Mineral and Rock Abundances

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
Max 0 1 3 6 0 1 1 0 0 0 0 2 0 0 na
Min 0 0 2 6 0 1 0 0 0 0 0 1 0 0 Tonga

Representative slides:

Slide Site Possible OriginCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
WD_71_6 Nukuleka (Tongatapu) Tongatapu 0 1 2 6 0 1 0 0 0 0 0 1 0 0 microlitic, felstic, vitric
WD_71_7 Pea (Tongatapu) Tongatapu 0 1 2 6 0 1 1 0 0 0 0 1 0 0 microlitic, felsitic, vitric
WD_71_8 Pea (Tongatapu) Tongatapu 0 1 2 6 0 1 0 0 0 0 0 2 0 0 microlitic, felsitic, vitric
WD_71_9 Nukuleka (Tongatapu) Tongatapu 0 1 2 6 0 1 0 0 0 0 0 2 0 0 microlitic, felsitic, vitric

WD_71_6

Tongatapu_1_2 Tongatapu_1_2
Sherd To2_1-2 from Nukuleka (Tongatapu). Slide WD_71_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.

Placer. Pyx index 0.88.


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 (user: Guest pwd: Guest) or full slide in VIMIPO. 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.


WD_71_9

Tongatapu_TO_2_1615 Tongatapu_TO_2_1615
Sherd To2_1615 from Nukuleka (Tongatapu). Slide WD_71_9 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. Py index 0.88


References:

183 Tongatapu, Tonga 1999 (Dickinson, W.)