Fabric Code: tpr439

Tongatapu hybrid

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 3 1 3 5 0 2 1 0 0 0 0 3 0 0 na
Min 3 0 2 4 0 1 0 0 0 0 0 2 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_1 Lapaha (Tongatapu) Tongatapu 3 1 2 5 0 2 1 0 0 0 0 2 0 0 microlitic, felsitic, vitric
WD_71_2 Lapaha (Tongatapu) Tongatapu 1 0 4 4 0 1 0 0 0 0 0 3 0 0 microlitic, vitric, felsitic

WD_71_1

Tongatapu_2_2 Tongatapu_2_2
Sherd 2-2 from Lapaha (Tongatapu). Slide WD_71_1 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.

Hybrid partial placer.


WD_71_2

Tongatapu_3_1 Tongatapu_3_1
Sherd To8-3-1 from Lapaha (Tongatapu). Slide WD_71_2 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.

Hybrid placer.


References:

183 Tongatapu, Tonga 1999 (Dickinson, W.)