Haast Schist

Haast Schist
Stratigraphic range: Carboniferous-Jurassic ~320–180 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Sample of Haast Schist, containing biotite
Type	Metamorphic
Unit of	Austral Superprovince
Sub-units	Otago & Alpine Schist
Lithology
Primary	Schist
Other	Greenschist, jade
Location
Region	Canterbury, Marlborough & Otago Regions Chatham Islands
Country	New Zealand
Type section
Named for	Haast Pass

The Haast Schist, which contains both the Alpine and Otago Schist, is a metamorphic unit in the South Island of New Zealand. It extends from Central Otago, along the eastern side of the Alpine Fault to Cook Strait.^[1] There are also isolated outcrops of the Haast Schist within the central North Island. The schists were named after Haast Pass on the West Coast. The Haast Schist can be divided geographically from north to south into the Kaimanawa, Terawhiti, Marlborough, Alpine, Otago and Chatham schist.^[2]