Fabric Code: tpr341a

Sigatoka quartzose A

Local. Dissected orogen

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 3 4 1 1 2 0 1 0 1 0 4 2 0 microlitic, microphaneritic, argillitic, silstone, chert, quartzite, felsitic
Min 0 3 3 1 1 1 0 1 0 0 0 3 2 0 Fiji

Representative slides:

Slide Site Possible OriginCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
FP_1_43 Sigatoka (Viti Levu) Sigatoka 0 3 3 1 1 2 0 0 0 0 0 3 2 0 microlitic, microphaneritic, argillitic, silstone, chert, quartzite, felsitic

FP_1_43

Sigatoka_scratched Sigatoka_scratched
Sherd scratched from Sigatoka (Viti Levu). Slide FP_1_43 from Petchey Collection, Auckland University. 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.

Indigenous Sigatoka sherds. Feldspars include K-feldspars as well as plagioclase. 1993 excavated samples.


References:

190 Dissected orogen tempers, Viti Levu, Fiji 1999 (Dickinson, W.)

Petchey MA Thesis 1995 (Petchey, F.)