Fabric Code: tpr490

Exotic Lakeba pyroxenic amphibolic

Hornblendes are altered to actinolite. Source unknown, not local to Lakeba.

Fabric Class:

Pyroxenic Amphibolic: Dominated by pyroxenic inclusions with amphiboles.

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 1 0 3 4 3 1 0 0 0 0 0 3 0 0 felsitic, microlitic
Min 0 0 2 3 3 1 0 0 0 0 0 2 0 0 Fiji

Representative slides:

Slide Site Possible OriginCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
SB_6_6 Lakeba (Lakeba) Unknown 1 0 3 3 3 1 0 0 0 0 0 3 0 0 felsitic, microlitic
SB_7_82 Lakeba (Lakeba) Unknown 0 0 2 4 3 1 0 0 0 0 0 2 0 0 felsitic, microlith

SB_6_6

Lakeba_6v6_a Lakeba_6v6_a
Sherd 47_17_A1 from Lakeba (Lakeba). Slide SB_6_6 from Best Collection, Auckland University. 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.

Altered hornblendes. Not local.


SB_7_82

Lakeba_7v82 Lakeba_7v82
Sherd 3_50 from Lakeba (Lakeba). Slide SB_7_82 from Best Collection, Auckland University. 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.

Hornblendes altered to actinolite.


References:

Best 1984 Lakeba: the Prehistory of a Fijian Island. PhD Thesis University of Auckland (Best, S)