Zobrazeno 1 - 10 of 113 pro vyhledávání: '"John D. Bradshaw"'
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Reconsidering basin geometries of the West Coast: the influence of the Paparoa Core Complex on Oligocene Rift Systems
Autor: John D. Bradshaw, N. K. Riordan, K. N. Bassett, Catherine M. Reid
Publikováno v: New Zealand Journal of Geology and Geophysics. 57:170-184
Oligocene and Miocene strata of the Nile Group are dominated by neritic cool-water carbonates formed within the Paparoa Trough along the western flank of the Challenger Rift System. In outcrop west of the Paparoa Range, the Nile Group contains three
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::451c29d1fc08edd2d3507f82f05f011c
https://doi.org/10.1080/00288306.2014.904386
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3
Provenance connections between late Neoproterozoic and early Palaeozoic sedimentary basins of the Ross Sea region, Antarctica, south-east Australia and southern Zealandia
Autor: Trevor Ireland, John D. Bradshaw, C. J. Adams
Publikováno v: Antarctic Science. 26:173-182
Thick successions of turbidites are widespread in the Ross–Delamerian and Lachlan orogens and are now dispersed through Australia, Antarctica and New Zealand. U-Pb detrital zircon age patterns for latest Precambrian, Cambrian and Ordovician metagre
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2121fbdfca25ea9e4441d324c0c66be9
https://doi.org/10.1017/s0954102013000461
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4
Permo-Carboniferous conglomerates in the Trinity Peninsula Group at View Point, Antarctic Peninsula: sedimentology, geochronology and isotope evidence for provenance and tectonic setting in Gondwana
Autor: C. Mark Fanning, Michael J. Flowerdew, Ian L. Millar, Martin J. Whitehouse, John D. Bradshaw, Alan P. M. Vaughan, Rudolph A. J. Trouw
Publikováno v: Geological Magazine. 149:626-644
Field observations from the Trinity Peninsula Group at View Point on the Antarctic Peninsula indicate that thick, southward-younging and overturned clastic sedimentary rocks, comprising unusually coarse conglomeratic lenses within a succession of fin
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e39c77fbf42ecb4419c2c24a1415190
https://doi.org/10.1017/s001675681100080x
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5
Cambrian intra-oceanic arc accretion to the austral Gondwana margin: constraints on the location of proto-New Zealand
Autor: K. N. Bassett, Marcus Gutjahr, John D. Bradshaw, Steve Weaver
Publikováno v: Australian Journal of Earth Sciences. 56:587-594
Data from New Zealand and northern Victoria Land, Antarctica, indicate that the Cambrian Takaka Terrane intra-oceanic arc/backarc assemblage and the Bowers Terrane intra-oceanic arc/back-arc assemblage were accreted to the Gondwana margin by the Late
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ba46f529ba5e26d69d8a77f5d3fc30fb
https://doi.org/10.1080/08120090902806339
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6
Loch Burn Formation, Fiordland, New Zealand: SHRIMP U‐Pb ages, geochemistry and provenance
Autor: I. M. Turnbull, Steve Weaver, Trevor Ireland, Tanya A. Ewing, John D. Bradshaw
Publikováno v: New Zealand Journal of Geology and Geophysics. 50:167-180
New SHRIMP U‐Pb ages and geochemical data have been obtained for the volcano‐sedimentary Loch Burn Formation (LBF). A rhyolitic clast from the tops of the Stuart Mountains gave a SHRIMP age of 150.3 ± 1.9 Ma, and a very fine sandstone from the s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ffa6fba06cc8bb6710b34ffebe39ec6a
https://doi.org/10.1080/00288300709509829
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7
Provenance of Cambrian conglomerates from New Zealand: implications for the tectonomagmatic evolution of the SE Gondwana margin
Autor: Carsten Münker, Marcus Gutjahr, John D. Bradshaw, Trevor Ireland, Steve Weaver
Publikováno v: Journal of the Geological Society. 163:997-1010
The oldest rocks in New Zealand are the Mid- to Late Cambrian intra-oceanic island arc rocks of the Takaka terrane (Devil River arc). The provenance of Cambrian conglomerates stratigraphically above the exposed arc succession was studied to constrain
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d21f1787b53c265fe8fe2e58e8190c69
https://doi.org/10.1144/0016-76492005-009
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8
The Paleozoic‐Mesozoic recycling of the Rakaia Terrane, South Island, New Zealand: Sandstone clast and sandstone petrology, geochemistry, and geochronology
Autor: Trevor Ireland, Anekant M Wandres, John D. Bradshaw
Publikováno v: New Zealand Journal of Geology and Geophysics. 48:229-245
The Torlesse terranes—part of the New Zealand Eastern Province—are accretionary complexes that comprise an enormous volume of quartzofeldspathic sandstones and mudstones with subsidiary conglomerates plus minor oceanic assemblages. Two terranes a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c7af56c4183d2b734d7fa634121a8598
https://doi.org/10.1080/00288306.2005.9515112
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10
Provenance of the sedimentary Rakaia sub-terrane, Torlesse Terrane, South Island, New Zealand: the use of igneous clast compositions to define the source
Autor: Steve Weaver, Anekant M Wandres, Nelson Eby, Trevor Ireland, Roland Maas, John D. Bradshaw
Publikováno v: Sedimentary Geology. 168:193-226
The Permian to Late Triassic Rakaia sub-terrane—part of the Torlesse superterrane of the New Zealand Eastern Province—is an accretionary complex that comprises an enormous volume of quartzofeldspathic sandstones and mudstones with subsidiary cong
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4a68a53f9e7ac52908950aa2a96caa88
https://doi.org/10.1016/j.sedgeo.2004.03.003
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