West New Britain Province

Wikidata ID: Q667468

Lithology and Age: Cenozoic sedimentary and volcanic rocks (mafic-felsic mixed volcanic) and Cenozoic sedimentary rocks ( Chorlton (2007) )       Macrostrat Geological Map Link

Geonames ID: 2083546       Getty Thesaurus of Geographic Names ID: 1000946

Mindat Loc ID: 203736


Volcanoes:

Langila: Basalt / Picro-Basalt, Composite type, Complex.

Krummel-Garbuna-Welcker: Andesite / Basaltic Andesite, Composite type, Stratovolcano(es).

Bola: Andesite / Basaltic Andesite, Composite type, Stratovolcano.

Garua Harbour: Rhyolite, Cluster type, Volcanic field.

Dakataua: Andesite / Basaltic Andesite, Caldera type, Caldera.

Lolo: Andesite / Basaltic Andesite, Composite type, Stratovolcano.

Witori: Dacite, Caldera type, Caldera.

Sulu Range: Andesite / Basaltic Andesite, Composite type, Stratovolcano(es).

Hargy: Dacite, Composite type, Stratovolcano.

Lolobau: Basalt / Picro-Basalt, Caldera type, Caldera.

Bamus: Andesite / Basaltic Andesite, Composite type, Stratovolcano.

Ulawun: Basalt / Picro-Basalt, Composite type, Stratovolcano.

Mundua: Basalt / Picro-Basalt, Composite type, Complex.

Garove: Andesite / Basaltic Andesite, Composite type, Stratovolcano.

Narage: , Composite type, Stratovolcano.

Unea: , Caldera type, Caldera.

Tangi: , Composite type, Stratovolcano.

Bangum: , Composite type, Stratovolcano.

Oto Group: , Composite type, Stratovolcano(es).

Likuruanga: , Composite type, Stratovolcano.

Lotomgan Group: , Minor type, Pyroclastic cone(s).

brown pot Site has a full slide image.

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Note that to see the 'Geology' layer (layer options in top right corner) you may have to zoom out.

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
tpr194 ** 2 1 1 4 0 6 1 0 0 0 0 2 0 0 vitric, microlitic
Arawe placer 0 0 1 2 0 5 0 0 0 0 0 1 0 0 Bismarck
tpr463 6 0 0 0 0 0 0 0 0 0 0 0 0 0 na
New Britain calcareous 6 0 0 0 0 0 0 0 0 0 0 0 0 0 Bismarck
tpr464 0 0 0 0 0 6 0 0 0 0 0 0 0 0 na
New Britain opaque 0 0 0 0 0 6 0 0 0 0 0 0 0 0 Bismarck
tpr192 ** 0 1 5 2 1 1 1 0 0 0 0 3 0 0 microlitic, lathwork, vitric
Garua feldspathic 0 1 5 2 1 1 1 0 0 0 0 3 0 0 Bismarck
tpr193 ** 0 0 4 3 1 3 1 0 0 0 0 2 0 0 microlitic, lathwork
Boduna feldspathic 0 0 4 3 1 2 1 0 0 0 0 2 0 0 Bismarck
tpr465 4 2 6 4 1 2 0 0 0 0 0 4 0 0 na
Kreslo feldspathic 1 1 4 0 0 0 0 0 0 0 0 1 0 0 Bismarck
tpr466 0 1 3 2 1 1 0 0 0 0 0 5 0 0 na
Kreslo lithic 0 1 3 2 1 1 0 0 0 0 0 5 0 0 Bismarck
tpr467 0 0 2 6 2 2 0 0 0 0 0 3 0 0 na
Kreslo pyroxenic placer 0 0 2 4 2 1 0 0 0 0 0 2 0 0 Bismarck
tpr468 3 2 3 5 1 4 0 0 0 0 0 2 0 0 na
Kreslo opaque placer 0 0 1 1 1 3 0 0 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_41_11 tpr194 (Arawe placer) New Britain 1 0 1 4 0 5 1 0 0 0 0 2 0 0 vitric, microlitic
WD_41_13 tpr194 (Arawe placer) New Britain 2 0 0 3 0 5 0 0 0 0 0 1 0 0 vitric, microlitic
WD_41_9 tpr192 (Garua feldspathic) New Britain 0 1 5 2 1 1 1 0 0 0 0 3 0 0 microlitic, lathwork, vitric
WD_41_10 tpr192 (Garua feldspathic) New Britain 0 1 5 2 1 1 1 0 0 0 0 3 0 0 microlitic, lathwork, vitric
JS_1_3 tpr193 (Boduna feldspathic) New Britain 0 0 4 3 1 2 1 0 0 0 0 2 0 0 microlitic, lathwork
JS_1_6 tpr193 (Boduna feldspathic) New Britain 0 0 4 3 1 3 1 0 0 0 0 2 0 0 microlitic, lathwork, felsitic, vitric
JS_1_1 tpr193 (Boduna feldspathic) New Britain 0 0 4 3 1 3 1 0 0 0 0 2 0 0 microlitic, lathwork
JS_1_2 tpr193 (Boduna feldspathic) New Britain 0 0 4 3 1 2 1 0 0 0 0 2 0 0 microlitic, lathwork
JS_1_4 tpr193 (Boduna feldspathic) New Britain 0 0 4 3 1 2 1 0 0 0 0 2 0 0 microlitic, lathwork
JS_1_5 tpr193 (Boduna feldspathic) New Britain 0 0 4 3 1 2 1 0 0 0 0 2 0 0 microlitic, lathwork

WD_41_11

Apalo_Arare66_1 Apalo_Arare66_1
Sherd 66-1 from Apalo (Kumbun). Slide WD_41_11 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.

Moderately to well sorted, fine- to medium-grained, subrounded placer beach sands rich in opaque iron oxide grains of high specific gravity and containing minor admixtures of calcareous reef detritus. Has orthopyroxene in addition to clinopyroxene.


WD_41_13

Apalo_Arare66_3 Apalo_Arare66_3
Sherd 66-3 from Apalo (Kumbun). Slide WD_41_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.

Moderately to well sorted, fine- to medium-grained, subrounded placer beach sands rich in opaque iron oxide grains of high specific gravity and containing minor admixtures of calcareous reef detritus. Has orthopyroxene in addition to clinopyroxene.


WD_41_9

GaruaFS2_14_94 GaruaFS2_14_94
Sherd FS2-14-94 from Garua (Garua). Slide WD_41_9 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.

Generally andesitic, fine- to medium-grained, subangular to subrounded temper sand of probable beach origin. Clinopyroxene dominant, but minor orthopyroxene.


WD_41_10

GaruaFS2_15_93 GaruaFS2_15_93
Sherd FS2-15-93 from Garua (Garua). Slide WD_41_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.

Generally andesitic, fine- to medium-grained, subangular to subrounded temper sand of probable beach origin. Has orthopyroxene in addition to clinopyroxene.


JS_1_3

FEA11 FEA11
Sherd FEA11 from Boduna (Boduna). Slide JS_1_3 from J Specht. 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.

Lapita sherd. Pyroxenes are 1/3 orthopyroxene.


JS_1_6

FEATT FEATT
Sherd FEA/A from Boduna (Boduna). Slide JS_1_6 from J Specht. 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.

Lapita sherd. Pyroxenes are 1/3 orthopyroxene.


JS_1_1

FEA2_a FEA2_a
Sherd FEA2 from Boduna (Boduna). Slide JS_1_1 from J Specht. 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.

Pyroxenes are 1/3 orthopyroxene


JS_1_2

FEA6 FEA6
Sherd FEA6 from Boduna (Boduna). Slide JS_1_2 from J Specht. 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.

Pyroxenes are 1/3 orthopyroxene


JS_1_4

FEA28 FEA28
Sherd FEA28 from Boduna (Boduna). Slide JS_1_4 from J Specht. 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.

Lapita sherd. Pyroxenes are 1/3 orthopyroxene.


JS_1_5

FEA36 FEA36
Sherd FEA36 from Boduna (Boduna). Slide JS_1_5 from J Specht. 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.

Lapita sherd. Pyroxenes are 1/3 orthopyroxene.


References:

149 New Britain, PNG, 1997 (Dickinson, W.)

174 Adwe, Arawe, New Britain, PNG, 1998 (Dickinson, W.)