Fabric Code: tpr228

Efate pyroxenic placer

Pyroxenic Efate placer sand temper (PEPT). Plagioclase feldspar mineral grains, clinopyroxene mineral grains, and opaque iron oxide grains. Microlitic fragments, in which birefringent plagioclase microlites are embedded in tan to brown volcanic glass; felsitic fragments, composed of microgranular quartz-feldspar mosaics formed by devitrification of felsic volcanic glass, and vitric fragments of tan to brown (or red) volcanic glass.

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.	Quartz	Feldspar	Pyroxene	Amphibole	Opaques	Olivine	Biotite	Muscovite	Epidote	Garnet/ Spinel	Ig./Met. Rocks	Sed. Rocks	Grog	Lithics/ Region
Max	0	0	4	4	0	2	0	0	0	0	0	4	0	0	vitric, microlitic, felsitic
Min	0	0	4	2	0	1	0	0	0	0	0	3	0	0	Vanuatu

Representative slides:

Slide	Site	Possible Origin	Cal.	Quartz	Feldspar	Pyroxene	Amphibole	Opaques	Olivine	Biotite	Muscovite	Epidote	Garnet/ Spinel	Ig./Met. Rocks	Sed. Rocks	Grog	Lithics
WD_45_1	Teouma (Efate)	Efate	0	0	4	3	0	3	0	0	0	0	0	3	0	0	vitric, microlitic
WD_45_10	Teouma (Efate)	Efate	0	0	4	3	0	2	0	0	0	0	0	3	0	0	vitric, microlitic
WD_45_6	Teouma (Efate)	Efate	0	0	4	3	0	3	0	0	0	0	0	3	0	0	vitric, microlitic

WD_45_1

TC39 has a full slide scan available. Imaged by K. Hardy and M. Leclerc, ANU.

Pyroxenic Efate placer sand temper. Plagioclase feldspar, clinopyroxene, and opaque iron oxide grains. Microlitic fragments in which birefringent plagioclase microlites are embedded in tan to brown volcanic glass, felsitic fragments composed of microgranular quartz-feldspar mosaics formed by devitrification of felsic volcanic glass, and vitric or glassy fragments of tan to brown (or red) volcanic glass.

WD_45_10

TeoumaTD4 — Sherd TD4 from Teouma (Efate). Slide WD_45_10 from Dickinson Collection, Bishop Museum. x4 Magnification PPL (left) XPL (right). Scale bar: 0.5mm. High resolution image in VIMIPO. Imaged by K. Hardy and M. Leclerc, ANU.

TeoumaTD4 — Sherd TD4 from Teouma (Efate). Slide WD_45_10 from Dickinson Collection, Bishop Museum. x4 Magnification PPL (left) XPL (right). Scale bar: 0.5mm. High resolution image in VIMIPO. Imaged by K. Hardy and M. Leclerc, ANU.

Pyroxenic Efate placer sand temper. Plagioclase feldspar, clinopyroxene, and opaque iron oxide grains. Microlitic fragments in which birefringent plagioclase microlites are embedded in tan to brown volcanic glass, felsitic fragments composed of microgranular quartz-feldspar mosaics formed by devitrification of felsic volcanic glass, and vitric or glassy fragments of tan to brown (or red) volcanic glass.

WD_45_6

TeoumaTI3 — Sherd TI3 from Teouma (Efate). Slide WD_45_6 from Dickinson Collection, Bishop Museum. x4 Magnification PPL (left) XPL (right). Scale bar: 0.5mm. High resolution image in VIMIPO. Imaged by K. Hardy and M. Leclerc, ANU.

TeoumaTI3 — Sherd TI3 from Teouma (Efate). Slide WD_45_6 from Dickinson Collection, Bishop Museum. x4 Magnification PPL (left) XPL (right). Scale bar: 0.5mm. High resolution image in VIMIPO. Imaged by K. Hardy and M. Leclerc, ANU.

Pyroxenic Efate placer sand temper. Plagioclase feldspar, clinopyroxene, and opaque iron oxide grains. Microlitic fragments in which birefringent plagioclase microlites are embedded in tan to brown volcanic glass, felsitic fragments composed of microgranular quartz-feldspar mosaics formed by devitrification of felsic volcanic glass, and vitric or glassy fragments of tan to brown (or red) volcanic glass.

References:

255 Vanuatu, 2006 (Dickinson, W.)

282 Teouma, Efate, Vanuatu, 2009 (Dickinson, W.)

277 Teouma, Efate, Vanuata, 2009 (see 282) (Dickinson, W.)

297b Teouma, Efate, Vanuatu, 2011 (Dickinson, W.)