Site: Ifo

Island: Erromango       Lithology: Volcanic high island ( Nunn et al. (2016) )

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

Near/In Geonames ID: 2136889       Wikidata ID: None       Getty Thesaurus of Geographic Names ID: None

Mindat Loc ID: None


In:

Tafea Province Wikidata ID: Q576417

Erromango Island Wikidata ID: Q859646

Vanuatu Wikidata ID: Q686


Volcanoes:

Traitor's Head: Basalt / Picro-Basalt, Composite type, Stratovolcano.

William: , Composite type, Stratovolcano.

Pumpan: , Composite type, Stratovolcano.

Melkum: , Composite type, Stratovolcano(es).

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


Fabrics:

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
tpr221 3 0 3 4 0 3 1 0 0 0 0 3 0 0 lathwork, vitric, microlitic
Erromango feldspathic non-placer 0 0 3 3 0 1 0 0 0 0 0 3 0 0 Vanuatu
tpr222 3 0 2 5 0 3 1 0 0 0 0 4 0 0 lathwork, vitric, microlitic
Erromango olivine placer 0 0 1 4 0 2 0 0 0 0 0 4 0 0 Vanuatu

Slides:

Slide Fabric Possible OriginCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
WD_57_6 tpr221 (Erromango feldspathic non-placer) Erromango 0 0 3 4 0 3 0 0 0 0 0 3 0 0 lathwork, vitric, microlitic
WD_57_5 tpr221 (Erromango feldspathic non-placer) Erromango 3 0 3 3 0 1 0 0 0 0 0 3 0 0 vitric, lathwork, microlitic, limeclast
WD_57_8 tpr222 (Erromango olivine placer) Erromango 0 0 1 6 0 2 1 0 0 0 0 3 0 0 lathwork, vitric, microlitic

WD_57_6

62-2 has a full slide scan available (user: Guest pwd: Guest). Imaged by K. Hardy and M. Leclerc, ANU.

Plagioclase-rich non-placer temper. Stream origin. Non-Lapita.


WD_57_5

Ifo62_1 Ifo62_1
Sherd 62-1 from Ifo (Erromango). Slide WD_57_5 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.

Lapita sherd. Plagioclase-rich non-placer. Calcareous grains appear to be reworked limeclasts, rather than modern reef detritus. Stream origin.


WD_57_8

Ifo62_4 Ifo62_4
Sherd 62-4 from Ifo (Erromango). Slide WD_57_8 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) with higher exposure. Imaged by K. Hardy and M. Leclerc, ANU.

A pyroxene-rich (plagioclase-poor and lithic-poor) placer. Stream origin.


References:

147 Erromango, Vanuatu, 1998 (see 177) (Dickinson, W.)

170 Erromango, Vanuatu, Nendo, Santa Cruz group, 1998 (see 177) (Dickinson, W.)

177 Erromango, Vanuatu, correction to 147 and 170, 1998 (Dickinson, W.)