Paleomagnetism of the Upper Cretaceous Mount Somers Volcanics, Canterbury, New Zealand

Oliver, P. J.; Grindley, G. W.; Mumme, T. C.; Vella, P.

doi:10.1080/00288306.1979.10424219

Cited by 27 publications

(5 citation statements)

References 19 publications

(13 reference statements)

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“…This progressive movement, ∼2000 km, took place over 150 million years (260 Ma to 110 Ma). The terranes arrived in their present New Zealand position before 95 Ma, because Late Cretaceous volcanic rocks in the South Island (Barley et al 1988), with polar palaeolatitudes (Oliver et al 1979), rest on Rakaia subterrane metasediments.…”

Section: Discussionmentioning

confidence: 99%

Australian provenance for Upper Permian to Cretaceous rocks forming accretionary complexes on the New Zealand sector of the Gondwanaland margin

Pickard

Adams

Barley

2000

Australian Journal of Earth Sciences

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U–Pb (SHRIMP) detrital zircon age patterns are reported for 12 samples of Permian to Cretaceous turbiditic quartzo‐feldspathic sandstone from the Torlesse and Waipapa suspect terranes of New Zealand. Their major Permian to Triassic, and minor Early Palaeozoic and Mesoproterozoic, age components indicate that most sediment was probably derived from the Carboniferous to Triassic New England Orogen in northeastern Australia. Rapid deposition of voluminous Torlesse/Waipapa turbidite fans during the Late Permian to Late Triassic appears to have been directly linked to uplift and exhumation of the magmatically active orogen during the 265–230 Ma Hunter–Bowen event. This period of cordilleran‐type orogeny allowed transport of large volumes of quartzo‐feldspathic sediment across the convergent Gondwanaland margin. Post‐Triassic depocentres also received (recycled?) sediment from the relict orogen as well as from Jurassic and Cretaceous volcanic provinces now offshore from southern Queensland and northern New South Wales. The detailed provenance–age fingerprints provided by the detrital zircon data are also consistent with progressive southward derivation of sediment: from northeastern Queensland during the Permian, southeastern Queensland during the Triassic, and northeastern New South Wales – Lord Howe Rise – Norfolk Ridge during the Jurassic to Cretaceous. Although the dextral sense of displacement is consistent with the tectonic regime during this period, detailed characterisation of source terranes at this scale is hindered by the scarcity of published zircon age data for igneous and sedimentary rocks in Queensland and northern New South Wales. Mesoproterozoic and Neoproterozoic age components cannot be adequately matched with likely source terranes in the Australian–Antarctic Precambrian craton, and it is possible they originated in the Proterozoic cores of the Cathaysia and Yangtze Blocks of southeast China.

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Section: Discussionmentioning

confidence: 99%

Australian provenance for Upper Permian to Cretaceous rocks forming accretionary complexes on the New Zealand sector of the Gondwanaland margin

Pickard

Adams

Barley

2000

Australian Journal of Earth Sciences

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“…It is postulated (Stevens 1971(Stevens , 1980a(Stevens , 1985 that the climatic change accompanying this rotation was probably equivalent in terms of modern climate to a change from sub-tropical/warm-temperate in the Jurassic to cool-/cold-temperate in the Early Cretaceous. Although there are indications of ice at the Cretaceous North Pole (Kemper 1987), there are no indications that Cretaceous climates in New Zealand were ever colder than coldtemperate, despite New Zealand being within 5 ~ ~ of the South Pole in the middle Cretaceous (Oliver et al 1979).…”

Section: Onset Of Riftingmentioning

confidence: 91%

The nature and timing of biotic links between New Zealand and Antarctica in Mesozoic and early Cenozoic times

Stevens

1989

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Until the Early Cretaceous, when the first phases of rifting that preceded the eventual breakup of the Australasian sector of Gondwana occurred, New Zealand and Antarctica had a close geographic relationship on the eastern margin of Gondwana. After having been influenced by proximity to the Permian ice sheet, during which New Zealand and Antarctica shared elements of the Glossopteris flora, the eastern margin of Gondwana entered into a phase of predominantly cool-temperate climates that lasted throughout the Triassic. In the Jurassic, rotation of Gondwana had moved New Zealand and Antarctica into mid-latitudes and they experienced warm-temperate climates. These climatic conditions facilitated the dispersion of Tethyan marine faunas into the SW Pacific sector of eastern Gondwana. New Zealand and Antarctica shared many elements of the Tethyan marine faunas. Starting in Middle Jurassic times, earth movements of the Rangitata Orogeny began to create considerable areas of land in the New Zealand region. Eventually, by Late Jurassic and Early Cretaceous times, a large landmass had been developed, extending northwards towards New Caledonia, eastwards to the Chatham Islands, westwards to the Lord Howe Rise and southwards to the edge of the Campbell Plateau. Creation of this landmass, and its associated land and marine links, together with the equable warm-temperate conditions then apparent over large areas of Gondwana, provided favourable conditions for the dispersal of Gondwana elements into New Zealand. Ancestral stocks of at least some of New Zealand’s archaic endemic terrestrial biota may have dispersed from eastern Gondwana into New Zealand at this time. In the Early Cretaceous, land connections to eastern Gondwana became weakened by the onset of rifting along the future sites of the Tasman Sea and Southern Ocean. The eastern edge of Gondwana was rotated into high latitudes, and cool-temperate climates returned to New Zealand and Antarctica. Cool-temperate Austral marine faunas developed and were shared between New Zealand, Antarctica and southern South America. Land links between New Zealand and West Antarctica provided access for early angiosperms. However, all land links between New Zealand and Australia/Antarctica were broken after 85 Ma. From this time onwards the ancestral Tasman Sea and Southern Ocean became effective barriers to overland dispersal between eastern Gondwana and New Zealand. Subsequently, all terrestrial colonists had to arrive by either flying, swimming or floating. Many birds did so, but no terrestrial snakes and no mammals, except bats. Although land connections had been broken in the Late Cretaceous, shallow-water marine links continued to exist between New Zealand and West Antarctica until the late Paleocene (the Weddellian Province). However, as New Zealand moved progressively northwards and the Southern Ocean widened, such southern links gave way in latest Paleocene and early Eocene times to northern (Australian and Malayo-Pacific) links.

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“…Falvey & Mutter (1981) suggested that at the time of opening of the Tasman Sea Basin (80-55 Ma) a W-dipping convergent plate margin lay adjacent to the present-day eastern coastline of the North Island of New Zealand. A high-potassium calc-alkaline andesite-dacite-rhyolite suite of this age occurs in the Mt Somers area of the South Island (Oliver et al 1979), but according to Falvey & Mutter (1981) these rocks occur beyond a transform boundary which terminated the convergent margin. Late Cretaceous rhyolite from Lord Howe Rise and a Cretaceous basalt-rhyolite assemblage from the North Island, are probably related to rifting rather than to plate convergence (Leitch 1975;Pirajno 1979) and Late Cretaceous sedimentary rocks fail to show any arc influence (Leitch 1975).…”

Section: Marginal Basins Of the Sw Pacificmentioning

confidence: 95%

Marginal basins of the SW Pacific and the preservation and recognition of their ancient analogues: a review

Leitch

1984

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Paleomagnetism of the Upper Cretaceous Mount Somers Volcanics, Canterbury, New Zealand

Cited by 27 publications

References 19 publications

Australian provenance for Upper Permian to Cretaceous rocks forming accretionary complexes on the New Zealand sector of the Gondwanaland margin

Australian provenance for Upper Permian to Cretaceous rocks forming accretionary complexes on the New Zealand sector of the Gondwanaland margin

The nature and timing of biotic links between New Zealand and Antarctica in Mesozoic and early Cenozoic times

Marginal basins of the SW Pacific and the preservation and recognition of their ancient analogues: a review

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