Fabric Code: tpr369

Nayau hybrid andesitic

Calcareous is limeclast and reef debris. Andesitic rock source. Could be local. Could be same as tpr413.

Fabric Class:

Calcareous: Dominated by calcareous inclusions.

Andesitic Arc: Dominated by andesite and basalt lithic fragments, with microlitic, felsitic and vitric textures, and the andesite minerals (plagioclase, clinopyroxene and sometimes hornblende).

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 4 0 1 3 0 4 0 0 0 0 0 5 0 0 vitric, microlitic, limeclast
Min 3 0 1 1 0 2 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_70_17 Nayau (Nayau) Lau 3 0 1 3 0 2 0 0 0 0 0 4 0 0 vitric, microlitic, limeclast
WD_70_18 Nayau (Nayau) Lau 4 0 1 2 0 3 0 0 0 0 0 3 0 0 vitric, microlitic, limeclast
WD_70_19 Aiwa (Aiwa) Lau 3 0 1 1 0 3 0 0 0 0 0 5 0 0 vitric, microlitic, limeclast
WD_70_20 Nayau (Nayau) Lau 4 0 1 1 0 4 0 0 0 0 0 3 0 0 vitric, microlitic, limeclast
WD_69_23 Nayau (Nayau) Nayau 4 0 1 1 2 0 0 0 0 0 0 3 0 0 vitric, microlitic
WD_69_24 Nayau (Nayau) Nayau 3 0 1 1 4 0 0 0 0 0 0 3 0 0 vitric, microlitic
WD_69_26 Nayau (Nayau) Nayau 3 0 1 2 2 0 0 0 0 0 0 4 0 0 vitric, microlitic

WD_70_17

Nayau_FS_26_1 Nayau_FS_26_1
Sherd FS-26-1 from Nayau (Nayau). Slide WD_70_17 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 andesitic beach temper.


WD_70_18

Nayau_FS_53_1 Nayau_FS_53_1
Sherd FS-53-1 from Nayau (Nayau). Slide WD_70_18 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 andesitic beach sand.


WD_70_19

Aiwa_FS_139_1 Aiwa_FS_139_1
Sherd FS-139-1 from Aiwa (Aiwa). Slide WD_70_19 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 andesitic beach sand.


WD_70_20

Nayau_FS_30_5 Nayau_FS_30_5
Sherd FS-30-5 from Nayau (Nayau). Slide WD_70_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.

Hybrid andesitic beach sand.


WD_69_23

NaMasimasi_N28_1 NaMasimasi_N28_1
Sherd N28-1 from Nayau (Nayau). Slide WD_69_23 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.

Lapita sherd. Local hybrid.


WD_69_24

NaMasimasi_N38_5 NaMasimasi_N38_5
Sherd N38-5 from Nayau (Nayau). Slide WD_69_24 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.

Lapita sherd. Hybrid.


WD_69_26

NaMasimasi_N17_19 NaMasimasi_N17_19
Sherd N17-19 from Nayau (Nayau). Slide WD_69_26 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.

Lapita sherd. Hybrid andesitic temper.


References:

262 Nayau, Lau, Fiji, 2007 (Dickinson, W.)

230 Nayau, Aiwa, Lau Group, Fiji, 2003 (Dickinson, W.)