Angaur

Wikidata ID: Q530813

Lithology and Age: None ( Chorlton (2007) )       Macrostrat Geological Map Link

Geonames ID: 4037653       Getty Thesaurus of Geographic Names ID: 7594865

Mindat Loc ID: 245494

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Many fabrics have a range of abundances. The range maximum (top) and minimum (bottom) are shown.

** Has full slide image available.

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
tpr49 0 0 0 0 0 0 0 0 0 0 0 0 0 6 na
Palau grog type A/I 0 0 0 0 0 0 0 0 0 0 0 0 0 6 Carolines
tpr50 ** 0 2 3 1 0 4 0 0 0 0 0 3 0 3 felsitic, vitric, microlitic
Palau grog type B/C/D 0 2 3 1 0 4 0 0 0 0 0 3 0 1 Carolines

Slides:

Slide Fabric Possible OriginCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
WD_13_14 tpr49 (Palau grog type A/I) Babeldoab (or nearby) 0 0 0 0 0 0 0 0 0 0 0 0 0 6 na
WD_13_15 tpr50 (Palau grog type B/C/D) Babeldoab 0 2 3 1 0 4 0 0 0 0 0 3 0 3 felsitic, microlitic
WD_13_16 tpr50 (Palau grog type B/C/D) Babeldoab 0 2 3 1 0 4 0 0 0 0 0 3 0 3 felsitic, microlitic

WD_13_14

Angaur615_1 Angaur615_1
Sherd 615-1 from Angaur (Angaur). Slide WD_13_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.

'Type A' Palauan temper type; grog temper essentially lacking any terrigenous sand grains.


WD_13_15

Angaur615_2 Angaur615_2
Sherd 615-2 from Angaur (Angaur). Slide WD_13_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.

Mixtures of grog particles and terrigenous grains (terrigenous grains more abundant than grog particles). Grains either felsic or mafic.


WD_13_16

Angaur615_3 Angaur615_3
Sherd 615-3 from Angaur (Angaur). Slide WD_13_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.

'Type B' Palauan temper type; hybrid feldspathic-lithic sand temper composed of mixed volcanic and calcareous sand.


References:

211 Temper sand origins, Palau 2002 (Dickinson, W.)