Fabric Code: tpr383

Exotic Nukubalavu hornblendic

Exotic to Nukubalavu, but may derive from Naroro eruptive suite in several parts of Vanua Levu.

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 0 0 4 5 2 2 0 0 0 0 0 3 0 0 vitric, microlitic, microphaneritic, felsitic, lathwork
Min 0 0 2 3 2 1 0 0 0 0 0 3 0 0 Fiji

Representative slides:

Slide Site Possible OriginCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
WD_76_24 Nukubalavu (Vanua Levu) Natewa Vanua Levu 0 0 2 5 2 1 0 0 0 0 0 3 0 0 vitric, microlitic, microphaneritic
WD_76_25 Nukubalavu (Vanua Levu) Natewa Vanua Levu 0 0 4 3 2 2 0 0 0 0 0 3 0 0 microphaneritic, vitric, microlitic, felsitic, lathwork

WD_76_24

Nukubalava_105_1 Nukubalava_105_1
Sherd NB-105-1 from Nukubalavu (Vanua Levu). Slide WD_76_24 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 small micro diorite and hornblendes, probably from Natewa volcanics on Vanua Levu.


WD_76_25

Nukubalava_NB121_7 Nukubalava_NB121_7
Sherd NB-121-7 from Nukubalavu (Vanua Levu). Slide WD_76_25 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.

Has small micro diorite and hornblendes, probably from Natewa volcanics on Vanua Levu.


References:

310 Nukubalavu, Natewa Bay, Vanua Levu, Fiji, 2014 (Dickinson, W.)