OXYGEN ISOTOPE MAPPING REVEALS A CRUSTAL-SCALE STRUCTURE WITHIN THE MEDIAN BATHOLITH, FIORDLAND, NEW ZEALAND

2017 ◽  
Author(s):  
S. Andico ◽  
◽  
Joshua J. Schwartz ◽  
Andy Tulloch ◽  
Rose Turnbull ◽  
...  
Keyword(s):  
New Zealand ◽  
Oxygen Isotope ◽  
Scale Structure

Stable oxygen isotope signatures of early season wood in New Zealand kauri ( Agathis australis) tree rings: Prospects for palaeoclimate reconstruction

2016 ◽  
Vol 40 ◽  
pp. 50-63 ◽  
Author(s):  
Andrew M. Lorrey ◽  
Tom H. Brookman ◽  
Michael N. Evans ◽  
Nicolas C. Fauchereau ◽  
Cate Macinnis-Ng ◽  
...  
Keyword(s):  
New Zealand ◽  
Oxygen Isotope ◽  
Tree Rings ◽  
Stable Oxygen Isotope ◽  
Early Season ◽  
Stable Oxygen

Palynology of Oxygen Isotope Stage 6 and Substage 5e from the Cover Beds of a Marine Terrace, Taranaki, New Zealand

1990 ◽  
Vol 34 (1) ◽  
pp. 86-100 ◽  
Author(s):  
M. Royd Bussell
Keyword(s):  
New Zealand ◽  
Oxygen Isotope ◽  
Major Change ◽  
Oxygen Isotope Stage ◽  
Long Period ◽  
Marine Terraces ◽  
Tree Ferns ◽  
Glacial Stage ◽  
Marine Platform ◽  
Organic Deposits

AbstractCover beds on uplifted Quaternary marine terraces in the Taranaki-Wanganui area of New Zealand include organic deposits which yield abundant pollen. In the west at Ohawe, marine shore platform deposits are overlain by laterally extensive lignites and laharic breccia, interbedded with alluvium and capped by tephra-rich loess. Following a time of presumably interglacial marine deposition on the platform, a long period of glacial climate is suggested by pollen floras dominated by grass and shrubland taxa. Trees were sparse, but the abundance of podocarps, Nothofagus, and tree ferns increased during at least one interval, suggesting minor climatic amelioration. Near the top of the section, a major change in regional vegetation is recorded by a dominance of pollen derived from podocarp-hardwood forest taxa, including Ascarina, interpreted as indicating a fully interglacial climate. The marine platform, previously assigned to oxygen isotope substage 5e, is now placed in stage 7. The overlying deposits were deposited during glacial stage 6, while interglacial substage 5e is recorded by sediment and pollen assemblages near the top of the section.

A late Quaternary moraine sequence dated by rock weathering rinds, Craigieburn Range, New Zealand

1993 ◽  
Vol 30 (9) ◽  
pp. 1861-1869 ◽  
Author(s):  
K. E. Ricker ◽  
T. J. Chinn ◽  
M. J. McSaveney
Keyword(s):  
New Zealand ◽  
Oxygen Isotope ◽  
Late Quaternary ◽  
Rock Weathering ◽  
Radiocarbon Dates ◽  
Oxygen Isotope Record ◽  
Isotope Record

Basins draining the Craigieburn Range, New Zealand, preserve a nearly complete late Quaternary moraine sequence. There are no radiocarbon dates, but moraine ages were determined by weathering-rind dating using thicknesses of rinds on surface-exposed sandstone boulders. Periods of expanded glaciers occurred 0.53, 0.66–2.5, 2.8–4.2, 5.9–9.7, and 16 thousand calendar (sidereal) years ago. Earlier periods of expanded glaciers in the region are dated by inference, largely from the ocean oxygen-isotope record, at 21–23.3, 25.5, and 56–70 ka.

Scale structure and taxonomy of some species of Raphidocystis, Raphidiophrys, and Pompholyxophrys (Heliozoea) including descriptions of six new taxa

1985 ◽  
Vol 63 (8) ◽  
pp. 1944-1961 ◽  
Author(s):  
K. H. Nicholls ◽  
M. Dürrschmidt
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
New Zealand ◽  
Light Microscopy ◽  
Light And Electron Microscopy ◽  
Scale Structure ◽  
Taxonomic Descriptions ◽  
Transmission Electron ◽  
New Information ◽  
Freshwater Habitats

Sixteen taxa of the genera Raphidocystis, Raphidiophrys, and Pompholyxophrys from freshwater habitats in Canada, Chile, and New Zealand were studied by light and electron microscopy. Six taxa are described as new: Raphidocystis glabra, Raphidiophrys minuta, Raphidiophrys orbicularis ssp. orbicularis, R. orbicularis ssp. ovalis, Pompholyxophrys stellata, and P. ossea. New information on scale structure and arrangement based on scanning and transmission electron microscopy amplifies the taxonomic descriptions of Raphidiophrys ambigua, R. pallida, R. elegans, R. intermedia, R. marginata, R. symmetrica, Pompholyxophrys punicea, P. exigua, and P. ovuligera, which were previously imperfectly known by light microscopy only.

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