Talasea Peninsula, West New Britain Province, Papua New GuineaThe Talasea peninsula, located on the north coast of New Britain island, is composed of a chain of Quaternary composite volcanoes and a caldera, with rock types ranging from basalt to rhyolite.
The andesites of Talasea are typically porphyritic, with phenocrysts of plagioclase, clinopyroxene, orthopyroxene and titanomagnetite, in a groundmass of the same minerals and glass. The acid rocks have a similar mineralogy but also contain quartz, amphibole, biotite and ilmenite, while the basalts lack orthopyroxene and titanomagnetite phcnocrysts, but contain olivine.
var: Titaniferous Magnetite
17 entries listed. 10 valid minerals.
The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
- Lowder, G.G. (1970): The Volcanoes and Caldera of Talasea, New Britain: Mineralogy. Contributions to Mineralogy and Petrology 26, 324-340.
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Locality Updated: Arandis Tin Mine, Arandis, Swakopmund District, Erongo Region, NamibiaFrom Debbie Woolf, 23rd May 2013 22:19:58