Fabric Code: tpr37

Yap natural metavolcanic type D

Plagioclase and clinopyroxene with subordinate Yap metavolcanics.

Fabric Class:

Feldspathic Pyroxenic: Dominated by feldspar inclusions, with pyroxenes.

Tectonic Highland Ophiolitic: Have diagnostic chrome-spinels and the metavolcanic serpentinite.

Sites:

Ceramic Wares

Yap plainware (1900 - 0 BP)

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 4 4 0 0 0 0 0 0 0 2 0 0 metavolcanic
Min 0 0 3 3 0 0 0 0 0 0 0 2 0 0 Carolines

Representative slides:

Slide Site Possible OriginWareCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
WD_10_13 Ngulu (Ngulu) Yap Yap plainware (1900 - 0 BP) 0 0 4 4 0 0 0 0 0 0 0 2 0 0 metavolcanic
WD_10_8 Ngulu (Ngulu) Yap Yap plainware (1900 - 0 BP) 0 0 4 4 0 0 0 0 0 0 0 2 0 0 metavolcanic

WD_10_13

Ngulu2 Ngulu2
Sherd 2 from Ngulu (Ngulu). Slide WD_10_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.

Temper sand mainly composed of plagioclase and clinopyroxene grains, but with subordinate proportions of Yap metavolcanics.


WD_10_8

Ngulu3 Ngulu3
Sherd 3 from Ngulu (Ngulu). Slide WD_10_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.

Temper sand mainly composed of plagioclase and clinopyroxene grains, but with subordinate proportions of Yap metavolcanics.


References:

210 Yap 2002 (Dickinson, W.)

089 Yap 1981 (Dickinson, W.)