Fabric Code: tpr294

Samoan colluvium

Colluvial debris. Vitric basaltic rock fragments, variably weathered. Rare olivine and pyroxene grains.

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 0 1 0 1 1 0 0 0 0 6 0 0 vitric
Min 0 0 0 0 0 0 0 0 0 0 0 6 0 0 Samoa

Representative slides:

Slide Site Possible OriginCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
WD_25_17 Aunu’U (Aunu’U) Aunu'u 0 0 0 1 0 1 0 0 0 0 0 6 0 0 vitric
WD_25_14 ‘Aoa Valley (Tutuila) Samoa 0 0 0 0 0 0 1 0 0 0 0 6 0 0 vitric, lathwork
WD_22_23 ‘Aoa Valley (Tutuila) Samoa 0 0 4 0 0 1 1 0 0 0 0 6 0 0 vitric
WD_25_13 Tataga-Matau (Tutuila) Samoa 0 0 0 0 0 1 0 0 0 0 0 6 0 0 vitric

WD_25_17

Aunuu_AS_17 Aunuu_AS_17
Sherd AS17 from Aunu’u (Aunu’u). Slide WD_25_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.

Very weathered inclusions.


WD_25_14

Aoa_AS_4 Aoa_AS_4
Sherd AS4 from ‘Aoa Valley (Tutuila). Slide WD_25_14 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.

Weathered.


WD_22_23

Aoa_AS_7 Aoa_AS_7
Sherd AS7 from ‘Aoa Valley (Tutuila). Slide WD_22_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.

Vacuoles suggest the past presence of calcareous inclusions.


WD_25_13

Toaga_4 Toaga_4
Sherd 4 from Tataga-matau (Tutuila). Slide WD_25_13 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.

Sparse temper.


References:

112 'Aoa Valley, Tutuila, American Samoa 1994 (Dickinson, W.)

096 Tataga-Matau Fort, American Samoa 1988 (Dickinson, W.)