Fabric Code: tpr20

Guam lithic andesiitic

Medium lithic andesitic temper with vitric to hyalopilitic volcanic rock fragments dominant. Med-lithic.

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 3 3 0 3 0 0 0 0 0 6 0 0 vitric, microlitic
Min 0 0 1 1 0 1 0 0 0 0 0 5 0 0 Marianas

Representative slides:

Slide Site Possible OriginCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
WD_5_15 Nomna Bay (Guam) Guam 0 0 3 2 0 3 0 0 0 0 0 5 0 0 vitric
WD_7_23 Tumon Bay (Guam) Guam 0 0 2 1 0 2 0 0 0 0 0 5 0 0 vitric
WD_15_23 Pago (Guam) Guam 0 0 1 1 0 1 0 0 0 0 0 6 0 0 vitric
WD_5_13 Talafofo (Guam) Guam 0 0 2 1 0 2 0 0 0 0 0 6 0 0 microlitic
WD_5_18 Inarajan (Guam) Guam 0 0 2 3 0 0 0 0 0 0 0 5 0 0 felsitic, vitric
WD_5_20 Pulantat (Guam) Guam 0 0 3 2 0 3 0 0 0 0 0 5 0 0 vitric
WD_5_8 Inarajan (Guam) Guam 0 0 2 3 0 0 0 0 0 0 0 5 0 0 felsitic, vitric
WD_5_9 Talafofo (Guam) Guam 0 0 2 2 0 0 0 0 0 0 0 5 0 0 felsitic, vitric
WD_7_21 Laguas (Guam) Guam 0 0 2 3 0 1 0 0 0 0 0 6 0 0 vitric
WD_7_4 Ordnance Annex (Guam) Guam 0 0 2 3 0 2 0 0 0 0 0 5 0 0 vitric, microlitic
WD_7_8 Ordnance Annex (Guam) Guam 0 0 2 1 0 3 0 0 0 0 0 6 0 0 vitric, microlitic
WD_8_14 Tarague (Guam) Guam 0 0 2 2 0 1 0 0 0 0 0 5 0 0 microlitic, vitric
WD_8_16 Tarague (Guam) Guam 0 0 2 2 0 1 0 0 0 0 0 6 0 0 microlitic, vitric

WD_5_15

Nomna-9 has a full slide scan available. Imaged by K. Hardy and M. Leclerc, ANU.

Lithic volcanic sand.


WD_7_23

guam_488 guam_488
Sherd 488 from Tumon Bay (Guam). Slide WD_7_23 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.

Moderately sorted andesitic volcanic sand temper of probable fluvial origin composed of subangular to subrounded grains of fine to coarse sand rich in glassy volcanic rock fragments.


WD_15_23

Pago137 Pago137
Sherd Pago137 from Pago (Guam). Slide WD_15_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.

Volcanic sand temper rich in brownish to reddish glassy lithic fragments. Early historic sherd.


WD_5_13

Ma_GU_8_7 Ma_GU_8_7
Sherd Ma-GU-8-7 from Talafofo (Guam). Slide WD_5_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.

Groundmass rock fragment suite distinct from that at Nomna Bay (more microlitic than vitric).


WD_5_18

Ma_GU_1_12 Ma_GU_1_12
Sherd Ma-GU-1-12 from Inarajan (Guam). Slide WD_5_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.

Indigenous source.


WD_5_20

Ma_GYo_1_13 Ma_GYo_1_13
Sherd Ma-GYo-1-13 from Pulantat (Guam). Slide WD_5_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.

Volcanic sand temper.


WD_5_8

Ma_GU_1_3 Ma_GU_1_3
Sherd Ma-GU-1-3 from Inarajan (Guam). Slide WD_5_8 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.

Volcanic sand temper.


WD_5_9

Ma_GU_8_4 Ma_GU_8_4
Sherd Ma-GU-8-4 from Talafofo (Guam). Slide WD_5_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.

Lithic-rich volcanic sand temper.


WD_7_21

guam_G3 guam_G3
Sherd G3 from Laguas (Guam). Slide WD_7_21 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.

Sand temper likely derived from wares made on Guam.


WD_7_4

guam_385A guam_385A
Sherd 385A from Ordnance Annex (Guam). Slide WD_7_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.

Mediumly lithic sand temper.


WD_7_8

guam_76 guam_76
Sherd 76 from Ordnance Annex (Guam). Slide WD_7_8 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.

Mediumly lithic sand temper.


WD_8_14

Tarague_72_1 Tarague_72_1
Sherd 72-1 from Tarague (Guam). Slide WD_8_14 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.

Poorly sorted volcanic sand temper rich in glassy volcanic rock fragments characteristic of indigenous Guam tempers.


WD_8_16

Tarague_72_3 Tarague_72_3
Sherd 72-3 from Tarague (Guam). Slide WD_8_16 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.

Poorly sorted volcanic sand temper rich in glassy volcanic rock fragments characteristic of indigenous Guam tempers.


References:

204 Guam, Mariana, 2001 (Dickinson, W.)