Fabric Code: tpr358

Exotic Ugaga quartzose

Rhyodacitic or diacitic- Feldspars are K-feldspars, with minor plagioclase. Origin unknown but could be Udu in 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 5 5 4 1 0 1 0 0 0 0 0 1 0 0 felsitic
Min 0 3 3 1 0 1 0 0 0 0 0 1 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_66_15 Ugaga (Ugaga) Udu, Vanua Levu 5 3 3 1 0 1 0 0 0 0 0 1 0 0 felsitic
WD_66_16 Ugaga (Ugaga) Udu, Vanua Levu 0 5 4 1 0 1 0 0 0 0 0 1 0 0 felsitic

WD_66_15

Ugaga_1158 Ugaga_1158
Sherd UGA-1158 from Ugaga (Ugaga). Slide WD_66_15 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.

Hybrid quartzose. Exotic to Ugaga, possibly from Udu, Vanua Levu.


WD_66_16

Ugaga_2064 Ugaga_2064
Sherd UGA-2064 from Ugaga (Ugaga). Slide WD_66_16 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.

Exotic to Ugaga, possibly from Udu Vanua Levu.


References:

188 Viti Levu, Fiji, 1999 (Dickinson, W.)