Fabric Code: tpr128

Buka plagioclase pyroxene

Plagioclase and lesser clinopyroxene dominant but with the microphanerite.

Fabric Class:

Feldspathic Pyroxenic: Dominated by feldspar inclusions, with pyroxenes.

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 0 1 6 4 1 2 1 1 0 0 0 3 0 0 microphaneritic, microlitic
Min 0 0 4 2 0 1 0 0 0 0 0 2 0 0 Solomons

Representative slides:

Slide Site Possible OriginCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
WD_32_23 Nissan (Nissan) Buka 0 0 5 2 1 2 0 0 0 0 0 3 0 0 microphaneritic
WD_101_4 Buka (Buka) Buka 0 0 4 3 1 2 0 0 0 0 0 3 0 0 microphaneritic
WD_32_1 Teop Islet (Teop) North Bougainville 0 0 5 3 0 2 0 0 0 0 0 2 0 0 microphaneritic
WD_32_15 Nissan (Nissan) Buka 0 0 4 4 1 2 0 1 0 0 0 3 0 0 microphaneritic
WD_32_2 Teop Islet (Teop) North Bougainville 0 0 6 2 0 2 1 0 0 0 0 2 0 0 microphaneritic
WD_32_22 Nissan (Nissan) Buka 0 0 5 3 1 2 0 0 0 0 0 3 0 0 microphaneritic
WD_32_3 Teop Islet (Teop) North Bougainville 0 0 6 2 0 1 1 0 0 0 0 2 0 0 microphaneritic
WD_32_5 Teop Islet (Teop) North Bougainville 0 0 5 2 0 2 0 0 0 0 0 3 0 0 microphaneritic
WD_32_9 Teop Islet (Teop) North Bougainville 0 0 5 2 1 2 0 0 0 0 0 3 0 0 microphaneritic
WD_35_18 Ontong Java Atoll (Ontong Java Atoll) Buka 0 0 5 4 0 1 0 1 0 0 0 3 0 0 microphaneritic

WD_32_23

Nissan-11 has a full slide scan available. Imaged by K. Hardy and M. Leclerc, ANU.

Plagioclase and lesser clinopyroxene dominant.


WD_101_4

BUK101 BUK101
Sherd 101 from Buka (Buka). Slide WD_101_4 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.

Non-Lapita. Poorly sorted and weathered volcanic sand. Plagioclase and pyroxene.


WD_32_1

Teop_bukaware_201T_BS_11 Teop_bukaware_201T_BS_11
Sherd 201T-BS-11 from Teop Islet (Teop). Slide WD_32_1 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.

Microphaneritic.


WD_32_15

Nissan_Kaplan_3 Nissan_Kaplan_3
Sherd 3 from Nissan (Nissan). Slide WD_32_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.

Buka wares. Plagioclase and lesser clinopyroxene dominant.


WD_32_2

Teop_bukaware_201T_BS_6 Teop_bukaware_201T_BS_6
Sherd 201T-BS-6 from Teop Islet (Teop). Slide WD_32_2 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.

Microphaneritic.


WD_32_22

Nissan_Kaplan_10 Nissan_Kaplan_10
Sherd 10 from Nissan (Nissan). Slide WD_32_22 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.

Buka wares. Plagioclase and lesser clinopyroxene dominant.


WD_32_3

Teop_bukaware_201T_BS_5 Teop_bukaware_201T_BS_5
Sherd 201T-BS-5 from Teop Islet (Teop). Slide WD_32_3 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.

Microphaneritic.


WD_32_5

Teop_bukaware_201T_BS_4 Teop_bukaware_201T_BS_4
Sherd 201T-BS-4 from Teop Islet (Teop). Slide WD_32_5 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.

Microphaneritic.


WD_32_9

Teop_bukaware_201T_BS_2 Teop_bukaware_201T_BS_2
Sherd 201T-BS-2 from Teop Islet (Teop). Slide WD_32_9 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.

Microphaneritic.


WD_35_18

Bukaware_Pelau55_6 Bukaware_Pelau55_6
Sherd 55-6 from Ontong Java atoll (Ontong Java atoll). Slide WD_35_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.

Plagioclase and lesser clinopyroxene dominant.


References:

153 Bougainville, Buka, Nissan, Ontong Java, Shortland, Solomon, 1997 (Dickinson, W.)

057 Nissan, New Ireland, PNG 1974 (Dickinson, W.)

178 Nissan, PNG, 1999 (Dickinson, W.)