Rock-stratigraphic names for the South Island schists and undifferentiated sediments of the New Zealand geosyncline

Abstract

In the South Island the rocks deposited in the New Zealand Geosyncline of Late Paleozoic and Mesozoic age now form three main belts, non-schistose sediments lying both to the east and discontinuously to the west of a schist belt. For the non-schistose sediments of the eastern belt the name “Torlesse Group,” derived from Haast's “Mount Torlesse Formation,” which was used in a similar sense, is proposed. For the median schist belt the name “Haast Schist Group,” named from the Haast River, is proposed, to embrace all the schistose rocks of the geosyncline. © Taylor & Francis Group, LLC.