New Ireland Island

Wikidata ID: Q215089

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

Geonames ID: 2089694       Getty Thesaurus of Geographic Names ID: 7002100

Mindat Loc ID: 300534

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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
tpr101 0 0 6 1 1 1 0 1 0 0 0 2 0 0 vitric, microlitic, felsitic
New Ireland feldspathic non-placer 0 0 5 1 0 1 0 0 0 0 0 1 0 0 Bismarck
tpr102 ** 0 0 3 4 2 2 0 0 0 0 0 4 0 0 vitric, microlitic, felsitic
New Ireland pyroxene rich-placer 0 0 3 3 1 1 0 0 0 0 0 2 0 0 Bismarck
tpr102a 0 0 6 0 2 2 0 0 0 0 0 2 0 0 vitric, microlitic, felsitic
New Ireland placer 0 0 6 0 2 2 0 0 0 0 0 2 0 0 Bismarck
tpr103 0 0 5 2 2 1 0 1 0 0 0 3 0 0 microphaneritic
New Ireland volcanic sand 0 0 5 2 2 1 0 0 0 0 0 2 0 0 Bismarck
tpr104 1 0 1 5 0 4 0 0 0 0 0 2 0 0 na
New Ireland pyroxenic placer 0 0 1 5 0 3 0 0 0 0 0 1 0 0 Bismarck
tpr105 6 0 0 0 0 0 0 0 0 0 0 0 0 0 na
New Ireland calcareous 6 0 0 0 0 0 0 0 0 0 0 0 0 0 Bismarck
tpr106 4 3 2 1 0 3 0 0 0 0 0 1 0 0 na
Exotic New Ireland quartz-calcite 4 3 2 1 0 3 0 0 0 0 0 1 0 0 Bismarck
tpr107 0 0 6 4 2 2 0 1 0 0 0 3 0 0 vitric
New Ireland feldspathic-pyroxenic 0 0 4 1 1 1 0 0 0 0 0 2 0 0 Bismarck
tpr108 0 0 3 5 1 3 0 1 0 0 0 2 0 0 vitric
New Ireland placer beach 0 0 3 5 1 3 0 1 0 0 0 2 0 0 Bismarck

Slides:

Slide Fabric Possible OriginCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
WD_31_1 tpr101 (New Ireland feldspathic non-placer) New Ireland 0 0 5 1 0 1 0 0 0 0 0 2 0 0 vitric, microlitic, felsitic
WD_31_3 tpr102 (New Ireland pyroxene rich-placer) New Ireland 0 0 4 4 2 1 0 0 0 0 0 2 0 0 vitric, microlitic, felsitic
WD_31_10 tpr102a (New Ireland placer) New Ireland 0 0 6 0 2 2 0 0 0 0 0 2 0 0 vitric, microlitic, felsitic
WD_31_16 tpr103 (New Ireland volcanic sand) New Ireland 0 0 5 2 2 1 0 0 0 0 0 2 0 0 microphaneritic
WD_31_17 tpr104 (New Ireland pyroxenic placer) New Ireland 1 0 1 5 0 3 0 0 0 0 0 2 0 0 na
WD_31_19 tpr104 (New Ireland pyroxenic placer) New Ireland 0 0 1 5 0 4 0 0 0 0 0 1 0 0 na
WD_31_13 tpr105 (New Ireland calcareous) New Ireland 6 0 0 0 0 0 0 0 0 0 0 0 0 0 na
WD_31_14 tpr106 (Exotic New Ireland quartz-calcite) Admiralty 4 3 2 1 0 3 0 0 0 0 0 1 0 0 na
WD_41_16 tpr105 (New Ireland calcareous) New Ireland 6 0 0 0 0 0 0 0 0 0 0 0 0 0 na
WD_31_23 tpr107 (New Ireland feldspathic-pyroxenic) New Ireland 0 0 6 1 1 1 0 1 0 0 0 2 0 0 vitric
WD_41_19 tpr107 (New Ireland feldspathic-pyroxenic) New Ireland 0 0 5 4 1 1 0 0 0 0 0 2 0 0 vitric
WD_41_21 tpr107 (New Ireland feldspathic-pyroxenic) New Ireland 0 0 4 3 2 2 0 0 0 0 0 2 0 0 vitric
WD_31_24 tpr108 (New Ireland placer beach) New Ireland 0 0 3 5 1 3 0 1 0 0 0 2 0 0 vitric

WD_31_1

ENX108 ENX108
Sherd ENX108 from Fissoa (New Ireland). Slide WD_31_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.

Feldspathic non-placer sand temper.


WD_31_3

ENX110 ENX110
Sherd ENX110 from Fissoa (New Ireland). Slide WD_31_3 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.

Pyroxene-rich beach placer sand temper.


WD_31_10

ENX107 ENX107
Sherd ENX107 from Fissoa (New Ireland). Slide WD_31_10 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.

Hornblende-rich, feldspathic sand temper of probable beach origin.


WD_31_16

ELS5 ELS5
Sherd ELS5 from Lasigi (New Ireland). Slide WD_31_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.

Poorly sorted, fine-grained volcanic sands of likely stream (non-local) origin.


WD_31_17

ELS6 ELS6
Sherd ELS6 from Lasigi (New Ireland). Slide WD_31_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.

Well sorted, fine- to medium-grained placer beach sand, wholly lacking in hornblende, but rich in clinopyroxene and opaque iron oxides.


WD_31_19

ELS8 ELS8
Sherd ELS8 from Lasigi (New Ireland). Slide WD_31_19 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.

Well sorted, fine- to medium-grained placer beach sand, wholly lacking in hornblende, but rich in clinopyroxene and opaque iron oxides.


WD_31_13

ELS2 ELS2
Sherd ELS2 from Lasigi (New Ireland). Slide WD_31_13 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.

Almost exclusively calcareous temper sand with sparse subspherical hydrous iron oxide grains.


WD_31_14

ELS3 ELS3
Sherd ELS3 from Lasigi (New Ireland). Slide WD_31_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 (mixed terrigenous-calcareous) beach sand temper of anomalous composition unlikely to derive from anywhere on New Ireland or within the Bismarck Archipelago.


WD_41_16

Lesu51_1 Lesu51_1
Sherd 51-1 from Lossu (New Ireland). Slide WD_41_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.

Calcareous sand temper, rare plagioclase and clinopyroxene.


WD_31_23

EAA16 EAA16
Sherd EAA16 from Lossu (New Ireland). Slide WD_31_23 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.

Moderately sorted and subrounded sand temper of probable stream origin that is plagioclase-rich.


WD_41_19

Lesu51_8 Lesu51_8
Sherd 51-8 from Lossu (New Ireland). Slide WD_41_19 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.

Volcanic sand temper.


WD_41_21

Lesu51_10 Lesu51_10
Sherd 51-10 from Lossu (New Ireland). Slide WD_41_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.

Feldspathic sand temper.


WD_31_24

EAA18 EAA18
Sherd EAA18 from Lossu (New Ireland). Slide WD_31_24 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.

Well sorted placer sand temper of probable beach origin that contains subordinate but prominent hornblende grains. Leached calcareous.


References:

243 Fissoa, New Ireland, PNG, 2004 (Dickinson, W.)

246 Lasigi, New Ireland, PNG, 2005 (Dickinson, W.)

085 Lesu, New Ireland, PNG, 1980 (Dickinson, W.)

247 Lossu, New Ireland, PNG, 2005 (Dickinson, W.)