Site: Tumon Bay

Island: Guam


Fabrics:

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
tpr20 0 0 3 3 0 3 0 0 0 0 0 6 0 0 vitric, microlitic
Guam lithic andesiitic 0 0 1 1 0 1 0 0 0 0 0 5 0 0 Marianas
tpr8 5 4 2 2 0 2 0 0 0 0 0 2 0 0 microlitic, felsitic
Saipan hybrid quartzose 4 3 1 0 0 1 0 0 0 0 0 1 0 0 Marianas

Slides:

Slide Fabric Possible OriginCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
WD_7_23 tpr20 (Guam lithic andesiitic) Guam 0 0 2 1 0 2 0 0 0 0 0 5 0 0 vitric
WD_6_17 tpr8 (Saipan hybrid quartzose) Saipan 4 4 2 1 0 1 0 0 0 0 0 2 0 0 microlitic, felsitic

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 or full slide in VIMIPO (user: Guest pwd: Guest). 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_6_17

Tumon433 Tumon433
Sherd 433 from Tumon Bay (Guam). Slide WD_6_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 quartose dactic. Called 443 in report. Imported. pre-latte.


References:

323 Mariana, reports 1-15 for MTAT, 1998 (Dickinson, W.)

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