Site: IBB

Island: Tinian       Lithology: Limestone high island ( Nunn et al. (2016) )

Lithology and Age: Cenozoic sedimentary ( Chorlton (2007) )       Macrostrat Geological Map Link

Near/In Geonames ID: 7798500       Wikidata ID: None       Getty Thesaurus of Geographic Names ID: None

Mindat Loc ID: None


In:

Northern Mariana Islands Wikidata ID: Q16644

Tinian Province Wikidata ID: Q7808227

Tinian Island Wikidata ID: Q325652

Mariana Islands Wikidata ID: Q153732

Note that to see the 'Geology' layer (layer options in top right corner) you may have to zoom out.


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
tpr10 0 5 2 0 0 2 0 0 0 0 0 3 0 0 vitric, felsitic
Saipan dacitic 0 5 2 0 0 2 0 0 0 0 0 3 0 0 Marianas
tpr11 0 2 2 0 0 1 0 0 0 0 0 6 0 0 vitric, felsitic
Saipan dacitic-vitric 0 1 2 0 0 1 0 0 0 0 0 6 0 0 Marianas
tpr13 0 0 5 2 0 2 0 0 0 0 0 4 0 0 microlitic, vitric, felsitic
Saipan feldspar andesitic 0 0 5 2 0 1 0 0 0 0 0 4 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_2_14 tpr10 (Saipan dacitic) Saipan 0 5 2 0 0 2 0 0 0 0 0 3 0 0 vitric, felsitic
WD_2_13 tpr11 (Saipan dacitic-vitric) Saipan 0 2 2 0 0 1 0 0 0 0 0 6 0 0 vitric, felsitic
WD_8_7 tpr13 (Saipan feldspar andesitic) Saipan 0 0 5 2 0 2 0 0 0 0 0 4 0 0 microlitic, vitric, felsitic

WD_2_14

IBB_Tinian96 IBB_Tinian96
Sherd 96 from IBB (Tinian). Slide WD_2_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.

Quartz-rich dacitic volcanic sand temper.


WD_2_13

IBB_Tinian94 IBB_Tinian94
Sherd 94 from IBB (Tinian). Slide WD_2_13 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.

Glass-rich dacitic volcanic sand temper.


WD_8_7

Jose95 Jose95
Sherd Jose95 from IBB (Tinian). Slide WD_8_7 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.

Andesitic temper sand in which quartz is absent or rare, but plagioclase is abundant and both pyroxenes are present.


References:

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