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Articles 1 - 5 of 5
Full-Text Articles in Physical Sciences and Mathematics
Holocene And Last Interglacial Climate Of The Faroe Islands From Sedimentary Plant Wax Hydrogen And Carbon Isotopes, Lorelei Curtin, William J. D'Andrea, Nicholas Balascio, Genevieve Pugsley, Gregory De Wet, Raymond Bradley
Holocene And Last Interglacial Climate Of The Faroe Islands From Sedimentary Plant Wax Hydrogen And Carbon Isotopes, Lorelei Curtin, William J. D'Andrea, Nicholas Balascio, Genevieve Pugsley, Gregory De Wet, Raymond Bradley
Geosciences: Faculty Publications
The Last Interglacial period (LIG) is Earth's most recent globally warm period and is analogous in some ways to projected future global warming. However, questions remain regarding the state of the climate during the LIG in the North Atlantic, a region that is extremely sensitive to changes in oceanic and atmospheric circulation. Here, we present hydrogen and carbon isotope (δD and δ13C) records from a suite of plant wax biomarkers preserved in Holocene and LIG lacustrine sediments from the North Atlantic Faroe Islands and interpret them as qualitative proxies for temperature and hydroclimate variability. These data are used to directly …
Mercury Chemostratigraphy Across The Cambrian Series 2 – Series 3 Boundary: Evidence For Increased Volcanic Activity Coincident With Extinction?, L. E. Faggetter, P. B. Wignall, S. B. Pruss, D. S. Jones, S. Grasby, M. Widdowson, R. J. Newton
Mercury Chemostratigraphy Across The Cambrian Series 2 – Series 3 Boundary: Evidence For Increased Volcanic Activity Coincident With Extinction?, L. E. Faggetter, P. B. Wignall, S. B. Pruss, D. S. Jones, S. Grasby, M. Widdowson, R. J. Newton
Geosciences: Faculty Publications
Flood basalt volcanism represented by the Kalkarindji Province (Australia) is temporally associated with a trilobite mass extinction at the Cambrian Series 2 – Series 3 boundary, providing one of the oldest potential links between volcanism and biotic crisis in the Phanerozoic. However, the relative timing of flood basalt volcanism (Kalkarindji Province, Australia) and the trilobite extinctions, first recorded in North America, is not known. Mercury (Hg) enrichment in the sedimentary record provides a potential proxy for volcanism which may facilitate improved chronologies of eruption and extinction. Here we report mercury records for three sections from mid-shelf strata of the Great …
Pleistocene Glacial History Of The New Zealand Subantarctic Islands, Eleanor Rainsley, Chris S.M. Turney, Nicholas R. Golledge, Janet M. Wilmshurst, Matt S. Mcglone, Alan G. Hogg, Bo Li, Zoë A. Thomas, Richard Roberts, Richard T. Jones, Jonathan G. Palmer, Verity Flett, Gregory De Wet, David K. Hutchinson, Mathew J. Lipson, Pavla Fenwick, Ben Hines, Umberto Binetti, Christopher J. Fogwill
Pleistocene Glacial History Of The New Zealand Subantarctic Islands, Eleanor Rainsley, Chris S.M. Turney, Nicholas R. Golledge, Janet M. Wilmshurst, Matt S. Mcglone, Alan G. Hogg, Bo Li, Zoë A. Thomas, Richard Roberts, Richard T. Jones, Jonathan G. Palmer, Verity Flett, Gregory De Wet, David K. Hutchinson, Mathew J. Lipson, Pavla Fenwick, Ben Hines, Umberto Binetti, Christopher J. Fogwill
Geosciences: Faculty Publications
The New Zealand subantarctic islands of Auckland and Campbell, situated between the subtropical front and the Antarctic Convergence in the Pacific sector of the Southern Ocean, provide valuable terrestrial records from a globally important climatic region. Whilst the islands show clear evidence of past glaciation, the timing and mechanisms behind Pleistocene environmental and climate changes remain uncertain. Here we present a multidisciplinary study of the islands-including marine and terrestrial geomorphological surveys, extensive analyses of sedimentary sequences, a comprehensive dating programme, and glacier flow line modelling-to investigate multiple phases of glaciation across the islands. We find evidence that the Auckland Islands …
New Source-To-Sink Approach In An Arctic Catchment Based On Hyperspectral Core-Logging (Lake Linné, Svalbard), Antonin Van Exem, Maxime Debret, Yoann Copard, Charles Verpoorter, Gregory De Wet, Nicolas Lecoq, Philippe Sorrel, Alan Werner, Steven Roof, Benoit Laignel, Michael Retelle
New Source-To-Sink Approach In An Arctic Catchment Based On Hyperspectral Core-Logging (Lake Linné, Svalbard), Antonin Van Exem, Maxime Debret, Yoann Copard, Charles Verpoorter, Gregory De Wet, Nicolas Lecoq, Philippe Sorrel, Alan Werner, Steven Roof, Benoit Laignel, Michael Retelle
Geosciences: Faculty Publications
No abstract provided.
Experimental Preservation Of Muscle Tissue In Quartz Sand And Kaolinite: Supplemental Information, Sharon A. Newman, Mirna Daye, Sirine C. Fakra, Matthew A. Marcus, Mihkel Pajusalu, Sara B. Pruss, Emily F. Smith, Tanja Bosak
Experimental Preservation Of Muscle Tissue In Quartz Sand And Kaolinite: Supplemental Information, Sharon A. Newman, Mirna Daye, Sirine C. Fakra, Matthew A. Marcus, Mihkel Pajusalu, Sara B. Pruss, Emily F. Smith, Tanja Bosak
Geosciences: Faculty Publications
Siliciclastic sediments of the Ediacaran Period contain exceptionally preserved fossils of macroscopic organisms, including three-dimensional casts and molds commonly found in sandstones and siltstones and some two-dimensional compressions reported in shales. The sporadic and variable associations of these exceptionally preserved macroscopic fossils with pyrite, clay minerals, and microbial fossils and textures complicate our understanding of fossilization processes. This hinders inferences about the evolutionary histories, tissue types, original morphologies, and lifestyles of the enigmatic Ediacara biota. Here, we investigate the delayed decay of scallop muscles buried in quartz sand or kaolinite for 45 days. This process occurs in the presence of …