R. J. Wysoczanski, G. M. Gibson, T. R. Ireland; Detrital zircon age patterns and provenance in late Paleozoic–early Mesozoic New Zealand terranes and development of the paleo-Pacific Gondwana margin. Geology ; 25 (10): 939–942. doi: https://doi.org/10.1130/0091-7613(1997)025<0939:DZAPAP>2.3.CO;2
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Permian-Triassic strata from Parapara Peak in the Takaka terrane, western province, New Zealand, are dominated by detrital zircon peaks at ca. 240 Ma comparable to the Torlesse terrane of the eastern province. This contrasts with lower Paleozoic strata (Onekaka schist), which is comparable to other lower Paleozoic terranes (including adjacent Buller terrane) from the Gondwana margin that are characterized by detrital zircon patterns with characteristic peaks at ca. 500–650 Ma and ca. 1000–1150 Ma, a less distinct peak around 1400–1700 Ma, and scattered Archean ages. These data indicate the close proximity of the eastern and western provinces by Permian time and a probable source region of Parapara Peak strata and Torlesse terrane in the New England fold belt of southeast Australia.