Kōrero: West Coast region

Greenland Group

Greenland Group

The Greenland Group is one of the most widespread rocks on the western side of the Alpine Fault. It is a thick, uniform sequence of quartz-rich greywacke and argillite, deposited in early Ordovician time (about 490 million years ago). This outcrop is at Seventeen Mile Bluff, on the coast north of Greymouth.

Rocks similar to the Greenland Group are found in Antarctica and eastern Australia. They were originally part of the ancient Gondwana continent, which later split and drifted apart.

Te whakamahi i tēnei tūemi

Private collection
Photograph by Simon Nathan

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Te tuhi tohutoro mō tēnei whārangi:

Simon Nathan, 'West Coast region - Geology and landscapes', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/photograph/21057/greenland-group (accessed 15 July 2020)

He kōrero nā Simon Nathan, updated 1 Sep 2016