Fabric Code: tpr391

Laucala pyroxenic

Derivation from alkalic olivine basalt similar to Taveuni volcanics exposed on the northeast lobe of the island at and near the Seputu site. Brownish to reddish fragments of mafic volcanic glass derived from basaltic scoria.

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 2 4 0 2 2 0 0 0 0 4 0 0 vitric
Min 0 0 2 4 0 1 2 0 0 0 0 4 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_93_20 Laucala (Laucala) Laucala 0 0 2 4 0 1 2 0 0 0 0 4 0 0 vitric

WD_93_20

Laucala_73_3_1 Laucala_73_3_1
Sherd 73-3-1 from Laucala (Laucala). Slide WD_93_20 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.

Laucala pyroxenic.


References:

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

215 Laucala, Fiji, 2002 (Dickinson, W.)