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| Kelley, Samuel E.; Kaplan, Michael R.; Schaefer, Joerg M.; Andersen, Bjorn G.; Barrell, David J. A.; Putnam, Aaron E.; Denton, George H.; Schwartz, Roseanne; Finkel, Robert C.; Doughty, Alice M.. |
| Millennial-scale temperature variations in Antarctica during the period 80,000 to 18,000 years ago are known to anti-correlate broadly with winter-centric cold-warm episodes revealed in Greenland ice cores. However, the extent to which climate fluctuations in the Southern Hemisphere beat in time with Antarctica, rather than with the Northern Hemisphere, has proved a controversial question. In this study we determine the ages of a prominent sequence of glacial moraines in New Zealand and use the results to assess the phasing of millennial climate change. Forty-four Be-10 cosmogenic surface-exposure ages of boulders deposited by the Pukaki glacier in the Southern Alps document four moraine-building events from Marine Isotope Stage 3 (MIS 3) through to the... |
| Tipo: Text |
Palavras-chave: Be-10 surface-exposure dating; LGM; MIS 3; Southern Hemisphere; Westerly wind field; New Zealand. |
| Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00289/40068/39163.pdf |
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| Calvo, Eva; Pelejero, Carles; De Deckker, Patrick; Logan, Graham A.. |
| Comparison of ice cores from Greenland and Antarctica shows an asynchronous two-step warming at these high latitudes during the Last Termination. However, the question whether this asynchrony extends to lower latitudes is unclear mainly due to the scarcity of paleorecords from the Southern Hemisphere. New data from a marine core collected off South Australia (similar to 36 degrees S) allows a detailed reconstruction of sea-surface temperatures over the Last Termination. This confirms the existence of an Antarctic-type deglacial pattern and shows no indication of cooling associated with the Northern Hemisphere YD event. The SST record also provides a new comparison with the more extensive paleoclimatic data available from continental Australia. This shows a... |
| Tipo: Text |
Palavras-chave: Alkenones; Deglaciation; Southern Hemisphere. |
| Ano: 2007 |
URL: https://archimer.ifremer.fr/doc/00235/34647/33013.pdf |
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| Shirouzu, T.; Hosaka, K.; Nam, K.-O.; Weir, B.S.; Johnston, P.R.; Hosoya, T.. |
| Dacrymycetes, sister to Agaricomycetes, is a noteworthy lineage for studying the evolution of wooddecaying basidiomycetes; however, its species diversity and phylogeny are largely unknown. Species of Dacrymycetes previously used in molecular phylogenetic analyses are mainly derived from the Northern Hemisphere, thus insufficient knowledge exists concerning the Southern Hemisphere lineages. In this study, we investigated the species diversity of Dacrymycetes in New Zealand. We found 11 previously described species, and eight new species which were described here: Calocera pedicellata, Dacrymyces longistipitatus, D. pachysporus, D. stenosporus, D. parastenosporus, D. cylindricus, D. citrinus, and D. cyrtosporus. These eight newly described species and seven... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Dacrymycetes; New Zealand; Phylogeny; Southern Hemisphere; Taxonomy. |
| Ano: 2017 |
URL: http://www.repository.naturalis.nl/record/625330 |
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