Zobrazeno 1 - 10 of 38 pro vyhledávání: '"David C. Lund"'
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Akademický článek
Anomalous Pacific‐Antarctic Ridge Volcanism Precedes Glacial Termination 2
Autor: David C. Lund, Emily I. Seeley, Paul D. Asimow, Madeline J. Lewis, Sarah E. McCart, Annalisa A. Mudahy
Publikováno v: Geochemistry, Geophysics, Geosystems, Vol 19, Iss 8, Pp 2478-2491 (2018)
Abstract We present results from a well‐dated sediment core on the Pacific‐Antarctic Ridge (PAR) that document a ∼15 cm thick layer of basaltic ash shards that precedes the penultimate deglaciation (Termination 2). The glasses have MORB composi
Externí odkaz: https://doaj.org/article/4437ac3b1bdd4a9a9f00eba7aa9080dc
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2
Millennial and centennial CO2 release from the Southern Ocean during the last deglaciation
Autor: Jimin Yu, Delia W. Oppo, Zhangdong Jin, Matthew Lacerra, Xuan Ji, Natalie E. Umling, David C. Lund, Nick McCave, Laurie Menviel, Jun Shao, Chen Xu
Publikováno v: Nature Geoscience (1752-0894) (Springer Science and Business Media LLC), 2022-04, Vol. 15, N. 4, P. 293-299
For its greenhouse effects, atmospheric CO2 can critically influence the global climate on millennial and centennial timescales. Pleistocene atmospheric CO2 variations must involve changes in ocean storage of carbon, but the mechanisms and pathways o
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a675b1bed78aa5309b85ed9dbd69f6c0
https://archimer.ifremer.fr/doc/00759/87127/
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3
Tracking Southern Ocean Sea Ice Extent With Winter Water: A New Method Based on the Oxygen Isotopic Signature of Foraminifera
Autor: Earle A. Wilson, Karen E. Kohfeld, David C Lund, Zanna Chase
Southern Ocean sea ice plays a central role in the oceanic meridional overturning circulation, transforming globally prevalent watermasses through surface buoyancy loss and gain. Buoyancy loss due to surface cooling and sea ice growth promotes the fo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c689a000f575f407a4f8eeaf4a9d4cef
https://resolver.caltech.edu/CaltechAUTHORS:20210519-141321689
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8
230 Th Normalization: New Insights on an Essential Tool for Quantifying Sedimentary Fluxes in the Modern and Quaternary Ocean
Autor: Laura F. Robinson, Paul Lerner, Allison W Jacobel, Sylvain Pichat, Kassandra M Costa, Adi Torfstein, George H. Rowland, Walter Geibert, Jörg Lippold, Alessandro Tagliabue, Samuel L Jaccard, Jean-Claude Dutay, Gideon M. Henderson, Stephanie S. Kienast, Alexandra R. Bausch, Claude Hillaire-Marcel, David McGee, Christoph Heinze, Gisela Winckler, Yuxin Zhou, Sharon S. Hoffmann, Robert F. Anderson, Figen Mekik, Christelle Not, Matthieu Roy-Barman, Frank J. Pavia, Lauren Kipp, Jerry F. McManus, Christopher T. Hayes, Franco Marcantonio, Lise Missiaen, Jennifer L. Middleton, Feifei Deng, David C Lund
Publikováno v: Paleoceanography and Paleoclimatology
Paleoceanography and Paleoclimatology, American Geophysical Union, 2020, 35 (2), pp.e2019PA003820. ⟨10.1029/2019PA003820⟩
e2019PA003820
Paleoceanography and Paleoclimatology, 2020, 35 (2), pp.e2019PA003820. ⟨10.1029/2019PA003820⟩
Costa, Kassandra M.; Hayes, Christopher T.; Anderson, Robert F.; Pavia, Frank J.; Bausch, Alexandra; Deng, Feifei; Dutay, Jean-Claude; Geibert, Walter; Heinze, Christoph; Henderson, Gideon; Hillaire-Marcel, Claude; Hoffmann, Sharon; Jaccard, Samuel L.; Jacobel, Allison W.; Kienast, Stephanie S.; Kipp, Lauren; Lerner, Paul; Lippold, Jörg; Lund, David; Marcantonio, Franco; ... (2020). 230 Th Normalization: New Insights on an Essential Tool for Quantifying Sedimentary Fluxes in the Modern and Quaternary Ocean. Paleoceanography and paleoclimatology, 35(2) American Geophysical Union 10.1029/2019PA003820
International audience; 230 Th normalization is a valuable paleoceanographic tool for reconstructing high-resolution sediment fluxes during the late Pleistocene (last~500,000 years). As its application has expanded to ever more diverse marine environ
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55dd4776f8ae43a9ed1806a914bbedd5
https://hal.archives-ouvertes.fr/hal-02826968/document
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9
Anomalous Pacific‐Antarctic Ridge Volcanism Precedes Glacial Termination 2
Autor: Madeline J. Lewis, Paul D. Asimow, Emily I. Seeley, Sarah E. McCart, David C Lund, Annalisa A. Mudahy
Publikováno v: Geochemistry, Geophysics, Geosystems. 19:2478-2491
We present results from a well‐dated sediment core on the Pacific‐Antarctic Ridge (PAR) that document a ∼15 cm thick layer of basaltic ash shards that precedes the penultimate deglaciation (Termination 2). The glasses have MORB composition cons
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb174b56204b66cdc4d16cd4bd73a7e1
https://doi.org/10.1029/2017gc007341
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10
Enhanced δ13C and δ18O Differences Between the South Atlantic and South Pacific During the Last Glaciation: The Deep Gateway Hypothesis
Autor: Katherine A. Allen, Elisabeth L. Sikes, David C Lund
Publikováno v: Paleoceanography. 32:1000-1017
Enhanced vertical gradients in benthic foraminiferal δ13C and δ18O in the Atlantic and Pacific during the last glaciation have revealed that ocean overturning circulation was characterized by shoaling of North-Atlantic sourced interior waters; none
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::32859698d5bf88b7441dc1c457c0ff92
https://doi.org/10.1002/2017pa003118
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