Bottom-water conditions in a marine basin after the Cretaceous-Paleogene impact event: timing the recovery of oxygen levels and productivity
An ultra-high-resolution analysis of major and trace element contents from the Cretaceous-Paleogene boundary interval in the Caravaca section, southeast Spain, reveals a quick recovery of depositional conditions after the impact event. Enrichment/depletion profiles of redox sensitive elements indica...
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| Veröffentlicht in: | PloS one 2013-12, Vol.8 (12), p.e82242-e82242 |
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| creator | Sosa-Montes De Oca, Claudia Martínez-Ruiz, Francisca Rodríguez-Tovar, Francisco Javier |
| description | An ultra-high-resolution analysis of major and trace element contents from the Cretaceous-Paleogene boundary interval in the Caravaca section, southeast Spain, reveals a quick recovery of depositional conditions after the impact event. Enrichment/depletion profiles of redox sensitive elements indicate significant geochemical anomalies just within the boundary ejecta layer, supporting an instantaneous recovery--some 10(2) years--of pre-impact conditions in terms of oxygenation. Geochemical redox proxies point to oxygen levels comparable to those at the end of the Cretaceous shortly after impact, which is further evidenced by the contemporary macrobenthic colonization of opportunistic tracemakers. Recovery of the oxygen conditions was therefore several orders shorter than traditional proposals (10(4)-10(5) years), suggesting a probable rapid recovery of deep-sea ecosystems at bottom and in intermediate waters. |
| doi_str_mv | 10.1371/journal.pone.0082242 |
| format | Article |
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Enrichment/depletion profiles of redox sensitive elements indicate significant geochemical anomalies just within the boundary ejecta layer, supporting an instantaneous recovery--some 10(2) years--of pre-impact conditions in terms of oxygenation. Geochemical redox proxies point to oxygen levels comparable to those at the end of the Cretaceous shortly after impact, which is further evidenced by the contemporary macrobenthic colonization of opportunistic tracemakers. Recovery of the oxygen conditions was therefore several orders shorter than traditional proposals (10(4)-10(5) years), suggesting a probable rapid recovery of deep-sea ecosystems at bottom and in intermediate waters.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0082242</identifier><identifier>PMID: 24349232</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Analysis ; Boundary layers ; Colonization ; Cretaceous ; Cretaceous period ; Deep sea ; Earthquakes ; Ecosystem ; Ecosystem recovery ; Ecosystems ; Ejecta ; Ejection ; Endangered & extinct species ; Environmental conditions ; Evolution ; Extinction ; Extinction, Biological ; Geobiology ; Geochemistry ; Geologic Sediments ; Geology ; Intermediate water ; Metals, Rare Earth ; Meteorites ; Molybdenum ; Ocean basins ; Oxidation-Reduction ; Oxygen ; Oxygen - analysis ; Oxygenation ; Paleogene ; Paleogene period ; Productivity ; Recovery ; Recovery (Medical) ; Seawater ; Sediments ; Spain ; Time Factors ; Trace elements</subject><ispartof>PloS one, 2013-12, Vol.8 (12), p.e82242-e82242</ispartof><rights>COPYRIGHT 2013 Public Library of Science</rights><rights>2013 Sosa-Montes De Oca et al. 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Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2013 Sosa-Montes De Oca et al 2013 Sosa-Montes De Oca et al</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a781t-ee122631cc87c3d2cae36d59ca6d4847b8a46e246523588d1814b305e2dcbb603</citedby><cites>FETCH-LOGICAL-a781t-ee122631cc87c3d2cae36d59ca6d4847b8a46e246523588d1814b305e2dcbb603</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3862577/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3862577/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,860,881,2096,2915,23845,27901,27902,53766,53768,79342,79343</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24349232$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Sosa-Montes De Oca, Claudia</creatorcontrib><creatorcontrib>Martínez-Ruiz, Francisca</creatorcontrib><creatorcontrib>Rodríguez-Tovar, Francisco Javier</creatorcontrib><title>Bottom-water conditions in a marine basin after the Cretaceous-Paleogene impact event: timing the recovery of oxygen levels and productivity</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>An ultra-high-resolution analysis of major and trace element contents from the Cretaceous-Paleogene boundary interval in the Caravaca section, southeast Spain, reveals a quick recovery of depositional conditions after the impact event. Enrichment/depletion profiles of redox sensitive elements indicate significant geochemical anomalies just within the boundary ejecta layer, supporting an instantaneous recovery--some 10(2) years--of pre-impact conditions in terms of oxygenation. Geochemical redox proxies point to oxygen levels comparable to those at the end of the Cretaceous shortly after impact, which is further evidenced by the contemporary macrobenthic colonization of opportunistic tracemakers. Recovery of the oxygen conditions was therefore several orders shorter than traditional proposals (10(4)-10(5) years), suggesting a probable rapid recovery of deep-sea ecosystems at bottom and in intermediate waters.</description><subject>Analysis</subject><subject>Boundary layers</subject><subject>Colonization</subject><subject>Cretaceous</subject><subject>Cretaceous period</subject><subject>Deep sea</subject><subject>Earthquakes</subject><subject>Ecosystem</subject><subject>Ecosystem recovery</subject><subject>Ecosystems</subject><subject>Ejecta</subject><subject>Ejection</subject><subject>Endangered & extinct species</subject><subject>Environmental conditions</subject><subject>Evolution</subject><subject>Extinction</subject><subject>Extinction, Biological</subject><subject>Geobiology</subject><subject>Geochemistry</subject><subject>Geologic Sediments</subject><subject>Geology</subject><subject>Intermediate water</subject><subject>Metals, Rare Earth</subject><subject>Meteorites</subject><subject>Molybdenum</subject><subject>Ocean basins</subject><subject>Oxidation-Reduction</subject><subject>Oxygen</subject><subject>Oxygen - 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Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sosa-Montes De Oca, Claudia</au><au>Martínez-Ruiz, Francisca</au><au>Rodríguez-Tovar, Francisco Javier</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Bottom-water conditions in a marine basin after the Cretaceous-Paleogene impact event: timing the recovery of oxygen levels and productivity</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2013-12-13</date><risdate>2013</risdate><volume>8</volume><issue>12</issue><spage>e82242</spage><epage>e82242</epage><pages>e82242-e82242</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>An ultra-high-resolution analysis of major and trace element contents from the Cretaceous-Paleogene boundary interval in the Caravaca section, southeast Spain, reveals a quick recovery of depositional conditions after the impact event. Enrichment/depletion profiles of redox sensitive elements indicate significant geochemical anomalies just within the boundary ejecta layer, supporting an instantaneous recovery--some 10(2) years--of pre-impact conditions in terms of oxygenation. Geochemical redox proxies point to oxygen levels comparable to those at the end of the Cretaceous shortly after impact, which is further evidenced by the contemporary macrobenthic colonization of opportunistic tracemakers. Recovery of the oxygen conditions was therefore several orders shorter than traditional proposals (10(4)-10(5) years), suggesting a probable rapid recovery of deep-sea ecosystems at bottom and in intermediate waters.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>24349232</pmid><doi>10.1371/journal.pone.0082242</doi><tpages>e82242</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Analysis Boundary layers Colonization Cretaceous Cretaceous period Deep sea Earthquakes Ecosystem Ecosystem recovery Ecosystems Ejecta Ejection Endangered & extinct species Environmental conditions Evolution Extinction Extinction, Biological Geobiology Geochemistry Geologic Sediments Geology Intermediate water Metals, Rare Earth Meteorites Molybdenum Ocean basins Oxidation-Reduction Oxygen Oxygen - analysis Oxygenation Paleogene Paleogene period Productivity Recovery Recovery (Medical) Seawater Sediments Spain Time Factors Trace elements |
| title | Bottom-water conditions in a marine basin after the Cretaceous-Paleogene impact event: timing the recovery of oxygen levels and productivity |
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