Tinian Island

Wikidata ID: Q325652

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

Geonames ID: 4041647       Getty Thesaurus of Geographic Names ID: 1009462

Mindat Loc ID: 440685

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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
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
tpr7 6 3 1 0 0 2 0 0 0 0 0 1 0 0 felsitic
Saipan hybrid quartz 6 1 1 0 0 0 0 0 0 0 0 1 0 0 Marianas
tpr15 ** 0 0 4 2 0 3 0 0 0 0 0 6 0 0 vitric, microlitic, felsitic
Saipan andesitic 0 0 3 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
tpr12 0 0 2 1 0 0 0 0 0 0 0 6 0 0 vitric, felsitic
Saipan vitric 0 0 2 1 0 0 0 0 0 0 0 6 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_6_14 tpr7 (Saipan hybrid quartz) Saipan 6 2 1 0 0 1 0 0 0 0 0 1 0 0 felsitic
WD_4_18 tpr15 (Saipan andesitic) Saipan 0 0 4 1 0 2 0 0 0 0 0 5 0 0 vitric, microlitic
WD_6_12 tpr8 (Saipan hybrid quartzose) Saipan 4 4 1 0 0 1 0 0 0 0 0 1 0 0 felsitic
WD_2_12 tpr11 (Saipan dacitic-vitric) Saipan 0 2 2 0 0 1 0 0 0 0 0 6 0 0 vitric, felsitic
WD_4_16 tpr12 (Saipan vitric) Saipan 0 0 2 1 0 2 0 0 0 0 0 6 0 0 vitric, felsitic
WD_4_17 tpr12 (Saipan vitric) Saipan 0 0 2 1 0 0 0 0 0 0 0 6 0 0 vitric, felsitic
WD_4_14 tpr13 (Saipan feldspar andesitic) Saipan 0 0 5 2 0 1 0 0 0 0 0 4 0 0 microlitic, vitric, felsitic
WD_4_15 tpr13 (Saipan feldspar andesitic) Saipan 0 0 5 2 0 2 0 0 0 0 0 4 0 0 microlitic, vitric, felsitic
WD_6_9 tpr8 (Saipan hybrid quartzose) Saipan 5 3 1 1 0 1 0 0 0 0 0 1 0 0 microlitic, 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.


WD_6_14

Tinian117B Tinian117B
Sherd 117B from Casino (Tinian). Slide WD_6_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.

Hybrid temper sand (85-90% of total grain population is calcareous reef detritus). Pre-latte.


WD_4_18

KahetTinian_01T KahetTinian_01T
Sherd 01T from Kahet (Tinian). Slide WD_4_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.

Hybrid with much leeching of calcareous grains, so numbers may be unrepresentative.


WD_6_12

Tinian04T Tinian04T
Sherd 04T from Kahet (Tinian). Slide WD_6_12 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 with reddish surfaces but uniformly dark and hackly interiors, contains quartz-rich temper sand admixed with calcareous grains.


WD_2_12

Taga15_4 Taga15_4
Sherd 15-4 from Taga (Tinian). Slide WD_2_12 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.

Glass- rich dacitic volcanic sand, type B. Marianas trailed sherd.


WD_4_16

TagaTinian_15_6 TagaTinian_15_6
Sherd 15-6 from Taga (Tinian). Slide WD_4_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.

Glass-rich volcanic sand , Type C, tan to brown vesicular glass. Marianas cordmarked sherd. Clinopyroxene and orthopyroxene.


WD_4_17

TagaTinian_15_7 TagaTinian_15_7
Sherd 15-7 from Taga (Tinian). Slide WD_4_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.

Glass-rich volcanic sand , Type C, Marianas incised sherd. Clinopyroxene dominant, and orthopyroxene.


WD_4_14

TagaTinian_15_1 TagaTinian_15_1
Sherd 44941 from Taga (Tinian). Slide WD_4_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.

Feldspathic andesitic volcanic sand. Marianas decordated sherd. Clinopyroxene dominant, but minor orthopyroxene.


WD_4_15

TagaTinian_15_2 TagaTinian_15_2
Sherd 44972 from Taga (Tinian). Slide WD_4_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.

Feldspathic andesitic volcanic sand. Marianas plainware sherd. Clinopyroxene dominant, but minor orthopyroxene.


WD_6_9

TinianUC1 TinianUC1
Sherd UC1 from Unai Chulu (Tinian). Slide WD_6_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.

Hybrid sand temper containing unstrained quartz as the most abundant terrigenous grain. Pre-latte.


References:

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

011 Mariana 1966 (Dickinson, W.)

198 Tinian, Mariana, 2000 (Dickinson, W.)