Tuvalu

Wikidata ID: Q672

Lithology and Age: None ( Chorlton (2007) )       Macrostrat Geological Map Link

Geonames ID: 2110297       Getty Thesaurus of Geographic Names ID: 1000236

Mindat Loc ID: 126596

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Many fabrics have a range of abundances. The range maximum (top) and minimum (bottom) are shown.

** Has full slide image available.

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
tpr286 ** 3 0 2 3 0 3 0 0 0 0 0 3 0 0 vitric, microlitic, lathwork
Exotic Nanumea hybrid 3 0 2 3 0 3 0 0 0 0 0 3 0 0 Tuvalu
tpr283 ** 5 0 2 2 0 1 0 0 0 0 0 3 0 0 vitric, microlitic, lathwork
Exotic Nanumanga hybrid 5 0 2 2 0 1 0 0 0 0 0 3 0 0 Tuvalu
tpr284 ** 1 1 1 6 0 1 1 0 0 0 0 2 0 0 vitric, microlitic, lathwork
Exotic Nanumanga pyroxene placer 1 0 0 6 0 1 0 0 0 0 0 2 0 0 Tuvalu
tpr287 ** 0 0 3 5 1 2 1 0 0 0 0 3 0 0 microphaneritic, vitric, microlitic, lathwork
Exotic Vaitupu placer 0 0 3 4 0 2 0 0 0 0 0 3 0 0 Tuvalu
tpr288 ** 3 0 2 4 1 3 0 0 0 0 0 2 0 0 microphaneritic, vitric, microlitic, lathwork
Exotic Vaitupu hybrid 3 0 2 4 1 3 0 0 0 0 0 2 0 0 Tuvalu

Slides:

Slide Fabric Possible OriginCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
WD_14_13 tpr286 (Exotic Nanumea hybrid) Viti Levu, Fiji 3 0 2 3 0 3 0 0 0 0 0 3 0 0 microlitic, vitric, lathwork
WD_14_16 tpr284 (Exotic Nanumanga pyroxene placer) Fiji 1 1 1 6 0 1 1 0 0 0 0 2 0 0 vitric, microlitic, lathwork
WD_14_14 tpr283 (Exotic Nanumanga hybrid) Fiji 5 0 2 2 0 1 0 0 0 0 0 3 0 0 vitric, microlitic, lathwork
WD_14_11 tpr287 (Exotic Vaitupu placer) Navatu, Viti Levu, Fiji 0 0 3 4 1 2 0 0 0 0 0 3 0 0 microphanertic, vitric, microlitic, lathwork
WD_14_8 tpr287 (Exotic Vaitupu placer) Navatu, Viti Levu, Fiji 0 0 3 4 1 2 0 0 0 0 0 3 0 0 microphaneritic, vitric, microlitic, lathwork
WD_14_12 tpr288 (Exotic Vaitupu hybrid) Navatu, Viti Levu, Fiji 3 0 2 4 1 3 0 0 0 0 0 2 0 0 microphoneritic, microlitic, vitric, lathwork

WD_14_13

Nanumea_TANU Nanumea_TANU
Sherd TA-NU from Nanumea (Nanumea). Slide WD_14_13 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.

Calcareous-pyroxenic hybrid. Trace olivine. May be same as tpr288.


WD_14_16

Hahula_4 Hahula_4
Sherd 4 from Nanumanga (Nanumanga). Slide WD_14_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.

Pyroxenic rich. Possibly from Vanua Levi Fiji.


WD_14_14

Hahula_2 Hahula_2
Sherd 2 from Nanumanga (Nanumanga). Slide WD_14_14 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.

Calcareous hybrid. Possibly from Fiji.


WD_14_11

Temei_53_2 Temei_53_2
Sherd 53-2 from Vaitupu (Vaitupu). Slide WD_14_11 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.

Has microgranular hypabyssal lithics as at Navatu, Fiji


WD_14_8

Temei_53_3 Temei_53_3
Sherd 53-3 from Vaitupu (Vaitupu). Slide WD_14_8 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.

Hypabassal lithics suggest Viti Levu Fiji as origin.


WD_14_12

Temei_53_6 Temei_53_6
Sherd 53-6 from Vaitupu (Vaitupu). Slide WD_14_12 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.

Calcareous hybrid


References:

168 Nanumea, Tuvalu, 1998 (Dickinson, W.)

181 Nanumanga, Tuvalu, 1999 (Dickinson, W.)

092 Vaitupu, Tuvalu 1986 (Dickinson, W.)