Haast Schist

Haast Schist
Stratigraphic range: Carboniferous-Jurassic
~320–180 Ma
Sample of Haast Schist, containing biotite
TypeMetamorphic
Unit ofAustral Superprovince
Sub-unitsOtago & Alpine Schist
Lithology
PrimarySchist
OtherGreenschist, jade
Location
RegionCanterbury, Marlborough & Otago Regions
Chatham Islands
CountryNew Zealand
Type section
Named forHaast 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]

  1. ^ "New Zealand Geology: an illustrated guide" (PDF). www.geotrips.org.nz.
  2. ^ Mortimer, N; Rattenbury, MS; King, PR; Bland, KJ; Barrell, DJA; Bache, F; Begg, JG; Campbell, HJ; Cox, SC; Crampton, JS; Edbrooke, SW; Forsyth, PJ; Johnston, MR; Jongens, R; Lee, JM; Leonard, GS; Raine, JI; Skinner, DNB; Timm, C; Townsend, DB; Tulloch, AJ; Turnbull, IM; Turnbull, RE (2014). "High-level stratigraphic scheme for New Zealand rocks". New Zealand Journal of Geology and Geophysics. 57 (4): 402–419. Bibcode:2014NZJGG..57..402M. doi:10.1080/00288306.2014.946062. ISSN 0028-8306.