Fabric Code: tpr432

Tungua pyroxenic

Orthopyroxene as well as clinopyroxene.

Fabric Class:

Pyroxenic: Dominated by pyroxenic inclusions.

Andesitic Arc: Dominated by andesite and basalt lithic fragments, with microlitic, felsitic and vitric textures, and the andesite minerals (plagioclase, clinopyroxene and sometimes hornblende).

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.	Quartz	Feldspar	Pyroxene	Amphibole	Opaques	Olivine	Biotite	Muscovite	Epidote	Garnet/ Spinel	Ig./Met. Rocks	Sed. Rocks	Grog	Lithics/ Region
Max	3	1	2	6	0	2	0	0	0	0	0	2	0	0	vitric, felsitic, microlitic
Min	0	0	2	6	0	1	0	0	0	0	0	1	0	0	Tonga

Representative slides:

Slide	Site	Possible Origin	Cal.	Quartz	Feldspar	Pyroxene	Amphibole	Opaques	Olivine	Biotite	Muscovite	Epidote	Garnet/ Spinel	Ig./Met. Rocks	Sed. Rocks	Grog	Lithics
WD_73_13	Tungua (Tungua)	Ha'apai	0	0	2	6	0	2	0	0	0	0	0	2	0	0	microlitic, felsitic, vitric
WD_73_14	Tungua (Tungua)	Ha'apai	3	0	2	5	0	1	0	0	0	0	0	1	0	0	microlitic, felsitic, vitric
WD_69_37	Tungua (Tungua)	Ha'apai	0	0	2	6	0	1	0	0	0	0	0	2	0	0	microlitic, vitric
WD_69_43	Matuku (Matuku)	Ha'apai	0	0	2	6	0	1	0	0	0	0	0	2	0	0	vitric, microlitic

WD_73_13

Tungua_39_3 — Sherd 39-3 from Tungua (Tungua). Slide WD_73_13 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.

Tungua_39_3 — Sherd 39-3 from Tungua (Tungua). Slide WD_73_13 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.

Pyroxenic.

WD_73_14

Tungua_39_4 — Sherd 39-4 from Tungua (Tungua). Slide WD_73_14 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.

Tungua_39_4 — Sherd 39-4 from Tungua (Tungua). Slide WD_73_14 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.

Pyroxenic.

WD_69_37

Haapai_XIII — Sherd XIII from Tungua (Tungua). Slide WD_69_37 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.

Haapai_XIII — Sherd XIII from Tungua (Tungua). Slide WD_69_37 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.

Pyroxenic.

WD_69_43

Haapai_XII — Sherd XII from Matuku (Matuku). Slide WD_69_43 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.

Haapai_XII — Sherd XII from Matuku (Matuku). Slide WD_69_43 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.

Pyroxenic temper.

References:

037 Vava'u, Ha'apai, Tongatapu, Tonga 1972 (Dickinson, W.)