Fabric Code: tpr150

Exotic Roviana quartz-calcite

Moderately sorted quartz-calcite temper. Calcareous reef detritus, with one third composed of quartzose terrigenous sand (same as found at Kolombangara).

Fabric Class:

Calcareous-Quartzose: Dominated by calcareous and quartz inclusions.

Dissected Orogen: Dominated by plutonic lithics such as microgranite, and those with microphaneritic textures, as well as metavolcanics. They have K-feldspars dominate, in addition to plagioclase.

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 6 5 2 0 0 2 0 0 0 1 0 0 0 0 na
Min 2 3 1 0 0 1 0 0 0 0 0 0 0 0 Solomons

Representative slides:

Slide Site Possible OriginCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
WD_38_16 Roviana (Roviana) 4 4 2 0 0 2 0 0 0 1 0 0 0 0 na
WD_40_20 Vella Lavella (Vella Lavella) exotic 6 3 1 0 0 1 0 0 0 1 0 0 0 0 na
WD_40_21 Roviana (Roviana) 6 3 1 0 0 1 0 0 0 1 0 0 0 0 na
WD_38_17 Roviana (Roviana) 5 3 2 0 0 2 0 0 0 1 0 0 0 0 na
WD_38_20 Roviana (Roviana) 2 5 2 0 0 2 0 0 0 0 0 0 0 0 na

WD_38_16

RoviannaHG99_101 RoviannaHG99_101
Sherd HG99-101 from Roviana (Roviana). Slide WD_38_16 from Dickinson Collection, Bishop Museum. x4 Magnification PPL (left) XPL (right). Scale bar: 0.5mm. High resolution image (user: Guest pwd: Guest) or full slide in VIMIPO. Imaged by K. Hardy and M. Leclerc, ANU.

Exotic quartz-calcite sand temper.


WD_40_20

Irigila_VL_9_232 Irigila_VL_9_232
Sherd VL-9-232 from Vella Lavella (Vella Lavella). Slide WD_40_20 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 quartz-calcite sand temper.


WD_40_21

Roviana_Lagoon_RV_22_L2 Roviana_Lagoon_RV_22_L2
Sherd RV-22-L2 from Roviana (Roviana). Slide WD_40_21 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 quartz-calcite sand temper.


WD_38_17

RoviannaNR53 RoviannaNR53
Sherd NR53 from Roviana (Roviana). Slide WD_38_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.

Exotic quartz-calcite sand temper.


WD_38_20

RoviannaZ85_750 RoviannaZ85_750
Sherd Z85-750 from Roviana (Roviana). Slide WD_38_20 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.

Exotic quartz-calcite sand temper.


References:

260 Kolombangara, Roviana, New Georgia, Solomon, 2007 (Dickinson, W.)

293 Vella Lavella, Roviana, New Georgia group, Solomon, 2011 (Dickinson, W.)

196 Roviana, New Georgia, Solomon, 2000 (Dickinson, W.)