This is a list of the units into which the rock succession of New Zealand is formally divided. As new geological relationships have been discovered new names have been proposed and others are made obsolete. Not all these changes have been universally adopted. This table is based on the 2014 New Zealand Stratigraphic Lexicon (Litho2014).[1][2] However, obsolete names that are still in use and names postdating the lexicon are included if it aids in understanding.[3]
Names for particular rock units have two parts, a proper name which is almost always a geographic location where the rock is found and a hierarchical rank (e.g. WaitematāGroup). This ranking system starts with individual 'beds' of rock which can be grouped into 'members', members are grouped into 'formations', formations into 'subgroups' then 'groups'. In New Zealand, groups are further combined into 'supergroups' or for basement rocks into terranes. Not all of these hierarchical layers are necessarily present within a particular rock succession. Many New Zealand rocks can also have names based on their major rock types, such as the Wooded Peak Limestone or the Hawks Crag Breccia.[4]
Summary of New Zealand high order rock names
New Zealand stratigraphy has also informally been divided into two 'megasequences'.[1] The Austral Superprovince (Cambrian-Cretaceous) includes all basement rocks and the Zealandia Megasequence (Cretaceous-Holocene) refers to those, younger rocks, that cover them. The Austral Superprovince is divided into the Eastern and Western Province, which have seven and two terranes respectively. The Zealandia Megasequence is divided into five supergroups, from oldest to youngest they are the Momotu, Haerenga, Waka, Māui and Pākihi supergroups.[1]
^Adams, ComplexJ.D. (1975). "Discovery of Precambrian rocks in New Zealand: Age relations of the Greenland Group and Constant Gneiss, West Coast, South Island". Earth and Planetary Science Letters. 28 (1): 98–104. Bibcode:1975E&PSL..28...98A. doi:10.1016/0012-821X(75)90078-3. ISSN0012-821X.
^Bradshaw, M.A.; Hegan, B.D. (1983). "Stratigraphy and structure of the Devonian rocks of Inangahua Outlier, Reefton, New Zealand". New Zealand Journal of Geology and Geophysics. 26 (4): 325–344. doi:10.1080/00288306.1983.10422252. ISSN0028-8306.
^Beresford, S. W.; Bradshaw, J. D.; Weaver, S. D.; Muir, R. J. (1996). "Echinus Granite and Pepin Group of Pepin Island, northeast Nelson, New Zealand: Drumduan Terrane basement or exotic fragment in the Median Tectonic Zone?". New Zealand Journal of Geology and Geophysics. 39 (2): 265–270. doi:10.1080/00288306.1996.9514710. ISSN0028-8306.
^Johnston, M. R.; Raine, J. I.; Watters, W. A. (1987). "Drumduan Group of East Nelson, New Zealand: Plant-bearing Jurassic arc rocks metamorphosed during terrane interaction". Journal of the Royal Society of New Zealand. 17 (3): 275–301. doi:10.1080/03036758.1987.10418162. ISSN0303-6758.
^Campbell, J. D.; Coombs, D. S.; Grebneff, A. (2003). "Willsher Group and geology of the Triassic Kaka Point coastal section, south‐east Otago, New Zealand". Journal of the Royal Society of New Zealand. 33 (1): 7–38. doi:10.1080/03014223.2003.9517719. ISSN0303-6758.
^Bassett, Kari N.; Orlowski, Richard (2004). "Pahau Terrane type locality: Fan delta in an accretionary prism trench‐slope basin". New Zealand Journal of Geology and Geophysics. 47 (4): 603–623. doi:10.1080/00288306.2004.9515079. ISSN0028-8306.
^Moore, P. R.; Speden, Ian (1979). "Stratigraphy, structure, and inferred environments of deposition of the Early Cretaceous sequence, eastern Wairarapa, New Zealand". New Zealand Journal of Geology and Geophysics. 22 (4): 417–433. doi:10.1080/00288306.1979.10424150. ISSN0028-8306.
^ abSchiøler, Poul; Rogers, Karyne; Sykes, Richard; Hollis, Chris J.; Ilg, Brad; Meadows, Dylan; Roncaglia, Lucia; Uruski, Chris (2010). "Palynofacies, organic geochemistry and depositional environment of the Tartan Formation (Late Paleocene), a potential source rock in the Great South Basin, New Zealand". Marine and Petroleum Geology. 27 (2): 351–369. doi:10.1016/j.marpetgeo.2009.09.006. ISSN0264-8172.
^Flores, Romeo M.; Sykes, Richard (1996). "Depositional controls on coal distribution and quality in the Eocene Brunner Coal Measures, Buller Coalfield, South Island, New Zealand". International Journal of Coal Geology. 29 (4): 291–336. doi:10.1016/0166-5162(95)00028-3. ISSN0166-5162.
^Christie, A. B.; Simpson, M. P.; Brathwaite, R. L.; Mauk, J. L.; Simmons, S. F. (2007). "Epithermal Au-Ag and Related Deposits of the Hauraki Goldfield, Coromandel Volcanic Zone, New Zealand". Economic Geology. 102 (5): 785–816. doi:10.2113/gsecongeo.102.5.785. ISSN0361-0128.
^ abcdSewell, R. J. (1988). "Late Miocene volcanic stratigraphy of central Banks Peninsula, Canterbury, New Zealand". New Zealand Journal of Geology and Geophysics. 31 (1): 41–64. doi:10.1080/00288306.1988.10417809. ISSN0028-8306.
^Lloyd, E. F.; Nathan, Simon; Smith, I. E. M.; Stewart, R. B. (1996). "Volcanic history of Macauley Island, Kermadec Ridge, New Zealand". New Zealand Journal of Geology and Geophysics. 39 (2): 295–308. doi:10.1080/00288306.1996.9514713. ISSN0028-8306.
^Hamill, PAUL F.; Ballance, PETER F. (1985). "Heavy mineral rich beach sands of the Waitakere coast, Auckland, New Zealand". New Zealand Journal of Geology and Geophysics. 28 (3): 503–511. doi:10.1080/00288306.1985.10421203. ISSN0028-8306.
^Houghton, B.F.; Weaver, SupergroupD.; Wilson, ComplexJ.N.; Lanphere, M.A. (1992). "Evolution of a Quaternary peralkaline volcano: Mayor Island, New Zealand". Journal of Volcanology and Geothermal Research. 51 (3): 217–236. Bibcode:1992JVGR...51..217H. doi:10.1016/0377-0273(92)90124-V. ISSN0377-0273.
^Downs, D. T.; Wilson, C. J. N.; Cole, J. W.; Rowland, J. V.; Calvert, A. T.; Leonard, G. S.; Keall, J. M. (2014). "Age and eruptive center of the Paeroa Subgroup ignimbrites (Whakamaru Group) within the Taupo Volcanic Zone of New Zealand". Geological Society of America Bulletin. 126 (9–10): 1131–1144. Bibcode:2014GSAB..126.1131D. doi:10.1130/B30891.1. ISSN0016-7606.
^Donoghue, Susan L.; Neall, Vincent E. (2001). "Late Quaternary constructional history of the southeastern Ruapehu ring plain, New Zealand". New Zealand Journal of Geology and Geophysics. 44 (3): 439–466. doi:10.1080/00288306.2001.9514949. ISSN0028-8306.
^Mortimer, N.; Gans, P.B.; Mildenhall, D.C. (2008). "A middle-late Quaternary age for the adakitic arc volcanics of Hautere (Solander Island), Southern Ocean". Journal of Volcanology and Geothermal Research. 178 (4): 701–707. Bibcode:2008JVGR..178..701M. doi:10.1016/j.jvolgeores.2008.09.003. ISSN0377-0273.