Site: Tavuki

Island: Kadavu       Lithology: Volcanic high island ( Nunn et al. (2016) )

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

Near/In Geonames ID: 2197884       Wikidata ID: Q23968478       Getty Thesaurus of Geographic Names ID: None

Mindat Loc ID: None


In:

Kadavu Group Wikidata ID: Q2300084

Kadavu Island Wikidata ID: Q1048944

Fiji Wikidata ID: Q712


Volcanoes:

Nabukelevu: Andesite / Basaltic Andesite, Minor (Silicic) type, Lava dome(s).

Note that to see the 'Geology' layer (layer options in top right corner) you may have to zoom out.


Fabrics:

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
tpr348a 1 0 5 1 3 2 0 2 0 0 0 4 0 0 vitric, felsitic
Kadavu biotite 0 0 3 0 1 1 0 1 0 0 0 2 0 0 Fiji

Slides:

Slide Fabric Possible OriginCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
WD_65_7 tpr348a (Kadavu biotite) Tavuki 0 0 4 1 2 2 0 1 0 0 0 2 0 0 vitric, felsitic
WD_65_8 tpr348a (Kadavu biotite) Tavuki 0 0 5 1 2 2 0 1 0 0 0 3 0 0 felsitic, vitric

WD_65_7

Kadavu_TK1 Kadavu_TK1
Sherd TK1 from Tavuki (Kadavu). Slide WD_65_7 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.

Biotite andesite. Has oxyhornblende as well as hornblende.


WD_65_8

Kadavu_TK2 Kadavu_TK2
Sherd TK2 from Tavuki (Kadavu). Slide WD_65_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.

Biotite andesite. Has oxyhornblende as well as hornblende.


References:

284 Kadavu, Fiji, 2010 (Dickinson, W.)