Fabric Code: tpr164

Santa Cruz transitional

Augitic clinopyroxene, minor opaque iron oxide grains and olivine grains, and rare hornblende grains are also present.

Fabric Class:

Pyroxenic-Igneous: Dominated by pyroxenic and igneous lithic inclusions.

Andesitic Arc: Dominated by andesite and basalt lithic fragments, with microlitic, felsitic and vitric textures, and the andesite minerals (plagioclase, clinopyroxene and sometimes hornblende).

Sites:

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 3 4 0 1 2 0 0 0 0 4 0 0 microlitic
Min 0 0 2 3 0 0 1 0 0 0 0 3 0 0 Vanuatu

Representative slides:

Slide Site Possible OriginCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
WD_106_5b Santa Cruz (Santa Cruz) Nendo 0 0 2 4 0 1 0 0 0 0 0 3 0 0 microlitic
WD_106_7c Santa Cruz (Santa Cruz) Nendo 0 0 2 4 0 1 0 0 0 0 0 3 0 0 microlitic
WD_106_9a Santa Cruz (Santa Cruz) Nendo 0 0 2 4 0 1 0 0 0 0 0 3 0 0 microlitic
WD_82_18 Reef (Reef) Nendo 0 0 2 4 0 1 0 0 0 0 0 3 0 0 microlitic
WD_84_2 Nanggu (Nendö) Nendo 0 0 3 4 0 1 0 0 0 0 0 4 0 0 microlitic
WD_88_11 Reef (Reef) Nendo 0 0 3 4 0 1 0 0 0 0 0 4 0 0 microlitic
WD_91_1 Trevanion Islet (Tomotu Neo) Nendo 0 0 3 4 0 1 0 0 0 0 0 4 0 0 microlitic
WD_91_15 Graciosa Bay (Nendö) Nendo 0 0 3 4 0 1 0 0 0 0 0 4 0 0 microlitic

WD_106_5b

SantaCruz75_6 SantaCruz75_6
Sherd 75-6 from Santa Cruz (Santa Cruz). Slide WD_106_5b 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.

Transitional.


WD_106_7c

SantaCruz37_38 SantaCruz37_38
Sherd 37-38 from Santa Cruz (Santa Cruz). Slide WD_106_7c 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.

Transitional.


WD_106_9a

SantaCruz28_10 SantaCruz28_10
Sherd 45227 from Santa Cruz (Santa Cruz). Slide WD_106_9a 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.

Transitional.


WD_82_18

RF2_160_4 RF2_160_4
Sherd RF2-160-4 from Reef (Reef). Slide WD_82_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.

Transitional placer (35%-60% ferromagnesian grains) sand temper.


WD_84_2

NangguSZ_8_107_6 NangguSZ_8_107_6
Sherd SZ-8-107-6 from Nanggu (Nendö). Slide WD_84_2 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.

Transitional placer (35%-60% ferromagnesian grains) sand temper.


WD_88_11

ReefIslandRL6_35 ReefIslandRL6_35
Sherd RL6-35 from Reef (Reef). Slide WD_88_11 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.

Transitional.


WD_91_1

Trevanion49_1 Trevanion49_1
Sherd 49-1 from Trevanion Islet (Tomotu Neo). Slide WD_91_1 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.

Transitional.


WD_91_15

Graciosa49_15 Graciosa49_15
Sherd 49-15 from Graciosa Bay (Nendö). Slide WD_91_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.

Transitional.


References:

289 Reef Islands, Nendo, Santa Cruz group, Solomon (Dickinson, W.)