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Featured researches published by Cherry Newsam.


Nature Communications | 2014

Coccolithophore calcification response to past ocean acidification and climate change

Sarah A. O’Dea; Samantha J. Gibbs; Paul R. Bown; Jeremy R. Young; Alex J. Poulton; Cherry Newsam; Paul A. Wilson

Anthropogenic carbon dioxide emissions are forcing rapid ocean chemistry changes and causing ocean acidification (OA), which is of particular significance for calcifying organisms, including planktonic coccolithophores. Detailed analysis of coccolithophore skeletons enables comparison of calcite production in modern and fossil cells in order to investigate biomineralization response of ancient coccolithophores to climate change. Here we show that the two dominant coccolithophore taxa across the Paleocene–Eocene Thermal Maximum (PETM) OA global warming event (~56 million years ago) exhibited morphological response to environmental change and both showed reduced calcification rates. However, only Coccolithus pelagicus exhibits a transient thinning of coccoliths, immediately before the PETM, that may have been OA-induced. Changing coccolith thickness may affect calcite production more significantly in the dominant modern species Emiliania huxleyi, but, overall, these PETM records indicate that the environmental factors that govern taxonomic composition and growth rate will most strongly influence coccolithophore calcification response to anthropogenic change.


Nature Geoscience | 2013

Species-specific growth response of coccolithophores to Palaeocene-Eocene environmental change

Samantha J. Gibbs; Alex J. Poulton; Paul R. Bown; Chris J. Daniels; Jason Hopkins; Jeremy R. Young; Heather L. Jones; Geoff J. Thiemann; Sarah A. O’Dea; Cherry Newsam


Quaternary Science Reviews | 2014

The transition on North America from the warm humid Pliocene to the glaciated Quaternary traced by eolian dust deposition at a benchmark North Atlantic Ocean drill site

David C Lang; Ian Bailey; Paul A. Wilson; Christopher J Beer; Clara T. Bolton; Oliver Friedrich; Cherry Newsam; Megan R Spencer; Marcus Gutjahr; Gavin L. Foster; J. Andrew Milton


Newsletters on Stratigraphy | 2017

Muted calcareous nannoplankton response at the Middle/Late Eocene Turnover event in the western North Atlantic Ocean

Cherry Newsam; Paul R. Bown; Bridget S. Wade; Heather L. Jones


publisher | None

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Archive | 2017

chapter 10 Coccolithophore Calcification Response to Past Ocean Acidification and Climate Change

Sarah A. O’Dea; Samantha J. Gibbs; Paul R. Bown; Jeremy R. Young; Alex J. Poulton; Cherry Newsam; Paul A Wilson


Journal of Nannoplankton Research , 37 (1) pp. 25-60. (2017) | 2017

Calcareous nannofossils from the Eocene North Atlantic Ocean (IODP Expedition 342 Sites U1403-1411)

Paul R. Bown; Cherry Newsam


Supplement to: Lang, David C; Bailey, Ian; Wilson, Paul A; Beer, Christopher J; Bolton, Clara T; Friedrich, Oliver; Newsam, Cherry; Spencer, Megan R; Gutjahr, Marcus; Foster, Gavin L; Cooper, Matthew J; Milton, J Andy (2014): The transition on North America from the warm humid Pliocene to the glaciated Quaternary traced by eolian dust deposition at a benchmark North Atlantic Ocean drill site. Quaternary Science Reviews, 93, 125-141, doi:10.1016/j.quascirev.2014.04.005 | 2014

CaCO3, foraminifer fragmentation, benthic carbon isotopes, coarse lithic counts and radiogenic isotopes (Sr, Nd, Pb) of the Pliocene and earliest Pleistocene terrigenous component (3.3-2.4 Ma) of IODP Site 306-U1313

David C Lang; Ian Bailey; Paul A Wilson; Christopher J Beer; Clara T. Bolton; Oliver Friedrich; Cherry Newsam; Megan R Spencer; Marcus Gutjahr; Gavin L. Foster; J. Andy Milton


Rendiconti online della Società Geologica Italiana | 2014

Calcareous nannoplankton response at the culmination of the Paleogene greenhouse world

Cherry Newsam; Paul R. Bown


In supplement to: Lang, DC et al. (2014): The transition on North America from the warm humid Pliocene to the glaciated Quaternary traced by eolian dust deposition at a benchmark North Atlantic Ocean drill site. Quaternary Science Reviews, 93, 125-141, https://doi.org/10.1016/j.quascirev.2014.04.005 | 2014

Calcium carbonate content and terrigenous accumulation rate of IODP Site 306-U1313

David C Lang; Ian Bailey; Paul A. Wilson; Christopher J Beer; Clara T. Bolton; Oliver Friedrich; Cherry Newsam; Megan R Spencer; Marcus Gutjahr; Gavin L. Foster; J. Andy Milton

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Paul R. Bown

University College London

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Jeremy R. Young

University College London

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Alex J. Poulton

American Museum of Natural History

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Chris J. Daniels

National Oceanography Centre

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Alex J. Poulton

American Museum of Natural History

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