Chapter 13 PermianTriassic felsic tuffs in South Island

Outline tectonic map of South Island (with offset of the Alpine Fault restored) showing

Simplified sedimentary logs showing the lithology, age and stratigraphic nomenclature of the felsic tuffs

Outline geological maps of three areas from which felsic tuffs were studied from the

Field photographs of felsic tuffs and volcaniclastic sandstones from the Brook Street Terrane. Alastair

Outline geological maps of two areas with felsic tuffs that were studied within the

Field photographs of felsic tuffs and volcaniclastic sandstones from the Maitai Group. Alastair H.

Outline geological maps of the two areas with felsic tuffs studied within the Murihiku

Sedimentary logs showing felsic tuffs within three sections studied in the Hokonui Hills and

Outline geological map and simplified log showing the regional setting of the Willsher Group.

Photomicrographs of felsic tuffs and associated volcanogenic lithologies from the Brook Street Terrane. Alastair

Photomicrographs of felsic tuffs and associated volcanogenic lithologies from the Brook Street Terrane, Maitai

Felsic tuffs and volcaniclastic sandstones from the Murihiku Terrane. Alastair H. F. Robertson et

Bar graphs of semi- quantitative XRD data for tuffaceous sediments (air-fall tuff and reworked

Total alkalis v. silica (TAS) plot for the tuffaceous sediments (air-fall tuff and reworked

Rock identification diagram for the tuffaceous sediments analysed, utilizing elements that are relatively stable

A–CN–K diagram (Al 2 O 3 v. Alastair H. F. Robertson et al. Geological

ICV–CIA diagram (ICV = (Ca. O + K 2 O + Na 2 O

REE-normalized spider plots. Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019;

REE-normalized spider plots (Boynton 1984). Alastair H. F. Robertson et al. Geological Society, London,

Geochemical discrimination plots of tuffaceous sediments from the Brook Street Terrane: (a) Th/Sc v.

Geochemical discrimination plots of tuffaceous sediments from the Maitai Group: (a) Th/Sc v. Alastair

Geochemical discrimination plots of tuffaceous sediments from the Murihiku Terrane: (a) Th/Sc v. Alastair

Geochemical discrimination plots of tuffaceous sediments from the Willsher Group: (a) Th/Sc v. Alastair

REE-enrichment plots. Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49:

Inferred age ranges of volcanism creating felsic tuffaceous sediments. Alastair H. F. Robertson et

Timing and relative dispersal of felsic tephra. Alastair H. F. Robertson et al. Geological

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Chapter 13 Permian–Triassic felsic tuffs in South Island, New Zealand: significance for oceanic and active continental margin subduction by Alastair H. F. Robertson, Romesh Palamakumbura, and Hamish J. Campbell Geological Society, London, Memoirs Volume 49(1): 293 -321 May 1, 2019 © 2019 The Author(s). Published by The Geological Society of London

Outline tectonic map of South Island (with offset of the Alpine Fault restored) showing the approximate locations of the outcrops of felsic tuffaceous sediments studied within the Brook Street Terrane, the Dun Mountain–Maitai Terrane, the Murihiku Terrane and the Kaka Point Structural Belt (Willsher Group). Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49: 293 -321 © 2019 The Author(s). Published by The Geological Society of London

Simplified sedimentary logs showing the lithology, age and stratigraphic nomenclature of the felsic tuffs studied within the Brook Street Terrane, the Dun Mountain–Maitai Terrane (Maitai Group), the Murihiku Terrane and the Willsher Group (see Fig. 13. 1 for locations). Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49: 293 -321 © 2019 The Author(s). Published by The Geological Society of London

Outline geological maps of three areas from which felsic tuffs were studied from the Brook Street Terrane. Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49: 293 -321 © 2019 The Author(s). Published by The Geological Society of London

Field photographs of felsic tuffs and volcaniclastic sandstones from the Brook Street Terrane. Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49: 293 -321 © 2019 The Author(s). Published by The Geological Society of London

Outline geological maps of two areas with felsic tuffs that were studied within the Dun Mountain –Maitai Terrane from the Stephens Subgroup (Maitai Group). Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49: 293 -321 © 2019 The Author(s). Published by The Geological Society of London

Field photographs of felsic tuffs and volcaniclastic sandstones from the Maitai Group. Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49: 293 -321 © 2019 The Author(s). Published by The Geological Society of London

Outline geological maps of the two areas with felsic tuffs studied within the Murihiku Terrane: (a) Hokonui Hills and (b) the Richmond area. Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49: 293 -321 © 2019 The Author(s). Published by The Geological Society of London

Sedimentary logs showing felsic tuffs within three sections studied in the Hokonui Hills and Roaring Bay (south coast), Murihiku Terrane. Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49: 293 -321 © 2019 The Author(s). Published by The Geological Society of London

Outline geological map and simplified log showing the regional setting of the Willsher Group. Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49: 293 -321 © 2019 The Author(s). Published by The Geological Society of London

Photomicrographs of felsic tuffs and associated volcanogenic lithologies from the Brook Street Terrane. Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49: 293 -321 © 2019 The Author(s). Published by The Geological Society of London

Photomicrographs of felsic tuffs and associated volcanogenic lithologies from the Brook Street Terrane, Maitai Group, Willsher Group (Kaka Point Structural Belt) and the Murihiku Terrane. Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49: 293 -321 © 2019 The Author(s). Published by The Geological Society of London

Felsic tuffs and volcaniclastic sandstones from the Murihiku Terrane. Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49: 293 -321 © 2019 The Author(s). Published by The Geological Society of London

Bar graphs of semi- quantitative XRD data for tuffaceous sediments (air-fall tuff and reworked tuff) showing the relative abundances of minerals recognized (minerals registering <1% are omitted). Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49: 293 -321 © 2019 The Author(s). Published by The Geological Society of London

Total alkalis v. silica (TAS) plot for the tuffaceous sediments (air-fall tuff and reworked tuff): (a) Brook Street Terrane; (b) Maitai Group; (c) Murihiku Terrane; and (d) Willsher Group. Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49: 293 -321 © 2019 The Author(s). Published by The Geological Society of London

Rock identification diagram for the tuffaceous sediments analysed, utilizing elements that are relatively stable under the prevailing conditions of alteration and low-grade metamorphism: (a) Brook Street Terrane; (b) Maitai Group; (c) Murihiku Terrane; and (d) Willsher Group. Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49: 293 -321 © 2019 The Author(s). Published by The Geological Society of London

ICV–CIA diagram (ICV = (Ca. O + K 2 O + Na 2 O + Fe 2 O 3 + Mg. O + Mn. O + Ti. O 2)/Al 2 O 3); CIA = (Al 2 O 3/Al 2 O 3 + K 2 O + Ca. O*) × 100: (a) Brook Street Terrane; (b) Maitai Group; (c) Murihiku Terrane and (d) Willsher Group. Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49: 293 -321 © 2019 The Author(s). Published by The Geological Society of London

Geochemical discrimination plots of tuffaceous sediments from the Brook Street Terrane: (a) Th/Sc v. Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49: 293 -321 © 2019 The Author(s). Published by The Geological Society of London

Geochemical discrimination plots of tuffaceous sediments from the Maitai Group: (a) Th/Sc v. Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49: 293 -321 © 2019 The Author(s). Published by The Geological Society of London

Geochemical discrimination plots of tuffaceous sediments from the Murihiku Terrane: (a) Th/Sc v. Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49: 293 -321 © 2019 The Author(s). Published by The Geological Society of London

Geochemical discrimination plots of tuffaceous sediments from the Willsher Group: (a) Th/Sc v. Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49: 293 -321 © 2019 The Author(s). Published by The Geological Society of London

Inferred age ranges of volcanism creating felsic tuffaceous sediments. Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49: 293 -321 © 2019 The Author(s). Published by The Geological Society of London

Timing and relative dispersal of felsic tephra. Alastair H. F. Robertson et al. Geological Society, London, Memoirs 2019; 49: 293 -321 © 2019 The Author(s). Published by The Geological Society of London