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Reviews and syntheses: review of proxies for low-oxygen paleoceanographic reconstructions

dc.contributor.authorHoogakker, Babette A.A.
dc.contributor.authorDavis, Catherine
dc.contributor.authorWang, Yi
dc.contributor.authorKusch, Stephanie
dc.contributor.authorNilsson-Kerr, Katrina
dc.contributor.authorHardisty, Dalton S.
dc.contributor.authorJacobel, Allison
dc.contributor.authorReyes Macaya, Dharma
dc.contributor.authorGlock, Nicolaas
dc.contributor.authorNi, Sha
dc.contributor.authorSepúlveda, Julio
dc.contributor.authorRen, Abby
dc.contributor.authorAuderset, Alexandra
dc.contributor.authorHess, Anya V.
dc.contributor.authorMeissner, Katrin J.
dc.contributor.authorCardich, Jorge
dc.contributor.authorAnderson, Robert
dc.contributor.authorBarras, Christine
dc.contributor.authorBasak, Chandranath
dc.contributor.authorBradbury, Harold J.
dc.contributor.authorBrinkmann, Inda
dc.contributor.authorCastillo, Alexis
dc.contributor.authorCook, Madelyn
dc.contributor.authorCosta, Kassandra
dc.contributor.authorChoquel, Constance
dc.contributor.authorDiz, Paula
dc.contributor.authorDonnenfield, Jonas
dc.contributor.authorElling, Felix J.
dc.contributor.authorErdem, Zeynep
dc.contributor.authorFilipsson, Helena L.
dc.contributor.authorGarrido, Sebastián
dc.contributor.authorGottschalk, Julia
dc.contributor.authorGovindankutty Menon, Anjaly
dc.contributor.authorGroeneveld, Jeroen
dc.contributor.authorHallmann, Christian
dc.contributor.authorHendy, Ingrid
dc.contributor.authorHennekam, Rick
dc.contributor.authorLu, Wanyi
dc.contributor.authorLynch-Stieglitz, Jean
dc.contributor.authorMatos, Lélia
dc.contributor.authorMartínez-García, Alfredo
dc.contributor.authorMolina, Giulia
dc.contributor.authorMuñoz, Práxedes
dc.contributor.authorMoretti, Simone
dc.contributor.authorMorford, Jennifer
dc.contributor.authorNuber, Sophie
dc.contributor.authorRadionovskaya, Svetlana
dc.contributor.authorReed Raven, Morgan
dc.contributor.authorSomes, Christopher J.
dc.contributor.authorStuder, Anja S.
dc.contributor.authorTachikawa, Kazuyo
dc.contributor.authorTapia, Raúl
dc.contributor.authorTetard, Martin
dc.contributor.authorVollmer, Tyler
dc.contributor.authorWang, Xingchen
dc.contributor.authorWu, Shuzhuang
dc.contributor.authorZhang, Yan
dc.contributor.authorZheng, Xin-Yuan
dc.contributor.authorZhou, Yuxin
dc.date.accessioned2025-05-29T18:56:21Z
dc.date.available2025-05-29T18:56:21Z
dc.date.issued2025
dc.identifier.urihttp://repositorio.ucm.cl/handle/ucm/6060
dc.description.abstractA growing body of observations has revealed rapid changes in both the total inventory and the distribution of marine oxygen over the latter half of the 20th century, leading to increased interest in extending oxygenation records into the past. The use of paleo-oxygen proxies has the potential to extend the spatial and temporal range of current records, constrain pre-anthropogenic baselines, provide datasets necessary to test climate models under different boundary conditions, and ultimately understand how ocean oxygenation responds beyond decadal-scale changes. This review seeks to summarize the current state of knowledge about proxies for reconstructing Cenozoic marine oxygen: sedimentary features, sedimentary redox-sensitive trace elements and isotopes, biomarkers, nitrogen isotopes, foraminiferal trace elements, foraminiferal assemblages, foraminiferal morphometrics, and benthic foraminiferal carbon isotope gradients. Taking stock of each proxy reveals some common limitations as the majority of proxies functions best at low-oxygen concentrations, and many reflect multiple environmental drivers. We also highlight recent breakthroughs in geochemistry and proxy approaches to constraining pelagic (in addition to benthic) oxygenation that are rapidly advancing the field. In light of both the emergence of new proxies and the persistent multiple driver problem, the need for multi-proxy approaches and data storage and sharing that adhere to the principles of findability, accessibility, interoperability, and reusability (FAIR) is emphasized. Continued refinements of proxy approaches and both proxy–proxy and proxy–model comparisons are likely to support the growing needs of both oceanographers and paleoceanographers interested in paleo-oxygenation records.es_CL
dc.language.isoenes_CL
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 Chile*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/*
dc.sourceBiogeosciences, 22(4), 863-957es_CL
dc.titleReviews and syntheses: review of proxies for low-oxygen paleoceanographic reconstructionses_CL
dc.typeArticlees_CL
dc.ucm.indexacionScopuses_CL
dc.ucm.indexacionIsies_CL
dc.ucm.uribg.copernicus.org/articles/22/863/2025/es_CL
dc.ucm.doidoi.org/10.5194/bg-22-863-2025es_CL


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