Banks Islands

Wikidata ID: Q537817

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

Geonames ID: 2137422       Getty Thesaurus of Geographic Names ID: 1009870

Mindat Loc ID: None

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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
tpr256 ** 0 0 5 3 1 2 0 0 0 0 0 5 0 0 microlitic, vitric
Banks volcanic 0 0 3 1 0 1 0 0 0 0 0 3 0 0 Vanuatu
tpr257 0 0 5 2 2 2 0 0 0 0 0 0 0 0 na
Exotic Banks feldspathic placer 0 0 5 2 2 2 0 0 0 0 0 0 0 0 Vanuatu
tpr258 0 0 1 3 0 1 0 0 0 0 0 6 0 0 vitric, microlitic
Banks vitric 0 0 1 2 0 1 0 0 0 0 0 6 0 0 Vanuatu

Slides:

Slide Fabric Possible OriginWareCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
WD_52_3 tpr256 (Banks volcanic) Banks Post-Lapita Banks (2700 - 2000 BP) 0 0 3 1 0 2 0 0 0 0 0 5 0 0 vitric, microlitic
WD_48_25 tpr256 (Banks volcanic) Banks 0 0 5 2 1 2 0 0 0 0 0 3 0 0 microlitic, vitric
WD_52_5 tpr257 (Exotic Banks feldspathic placer) Santo? 0 0 5 2 2 2 0 0 0 0 0 0 0 0 na
WD_52_1 tpr258 (Banks vitric) Banks Post-Lapita Banks (2700 - 2000 BP) 0 0 1 2 0 1 0 0 0 0 0 6 0 0 vitric

WD_52_3

Pakea58_3 Pakea58_3
Sherd 58-3 from Pakea Islet (Kwakea). Slide WD_52_3 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.

Poorly sorted, subangular to subrounded volcanic sand temper probably representing natural temper embedded in sandy clay bodies collected from slightly reworked colluvium or ravine fillings on inland flanks of island volcanoes, contains clinopyroxene and plagioclase feldspar typical of sands derived from bedrock volcanic assemblages of basalt and mafic andesite. Abundant polycrystalline lithic fragments of: (a)microlitic grains with plagioclase laths or microlites, and (b) vitrics.


WD_48_25

Banks18 Banks18
Sherd 18 from Pakea Islet (Kwakea). Slide WD_48_25 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.

Volcanic sand, brown vitric.


WD_52_5

Pakea58_5 Pakea58_5
Sherd 58-5 from Pakea Islet (Kwakea). Slide WD_52_5 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.

Possibly from Santo.


WD_52_1

Pakea58_1 Pakea58_1
Sherd 58-1 from Pakea Islet (Kwakea). Slide WD_52_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.

Colourless felsic glass.


References:

261 Banks, Vanuatu, 2007 (Dickinson, W.)

137 Banks Island, Vanuatu 1997 (Dickinson, W.)