The osmium isotopic composition change of Cenozoic sea water as inferred from a deep-sea core corrected for meteoritic contributions
A detailed study was made of the oceanic 187Os/ 186Os variation through the Cenozoic by using a hydrogen peroxide leaching procedure on a pelagic clay core from the North Pacific (Long Lines-44 GPC3). A 6% H 2O 2 solution was used. The range of 187Os/ 186Os obtained by this procedure was between 2 a...
Gespeichert in:
| Veröffentlicht in: | Geochimica et cosmochimica acta 1999-12, Vol.63 (23), p.4053-4058 |
|---|---|
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 4058 |
|---|---|
| container_issue | 23 |
| container_start_page | 4053 |
| container_title | Geochimica et cosmochimica acta |
| container_volume | 63 |
| creator | Pegram, William J Turekian, Karl K |
| description | A detailed study was made of the oceanic
187Os/
186Os variation through the Cenozoic by using a hydrogen peroxide leaching procedure on a pelagic clay core from the North Pacific (Long Lines-44 GPC3). A 6% H
2O
2 solution was used. The range of
187Os/
186Os obtained by this procedure was between 2 and 8.2. A milder leach (0.15% H
2O
2) in three out of four samples yielded a slightly higher
187Os/
186Os value than the stronger leach implying that the stronger leach released some meteoritic Os with
187Os/
186Os of 1. Using published
3He concentrations in GPC3 and cosmic dust
3He and Os fluxes to deep-sea sediments, the extraterrestrial Os concentration was estimated for each core segment and subtracted to yield “corrected” values of
187Os/
186Os. The results based on the milder leaching protocol and the
3He correction protocol yield similar values. The “corrected” ocean water
187Os/
186Os pattern for the past 25 million years is similar to that obtained by other workers and is compatible with other results for the entire Cenozoic. The variation with time in GPC3, uniquely, provides a statigraphic signature for the Paleogene. |
| doi_str_mv | 10.1016/S0016-7037(99)00308-7 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_27158421</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0016703799003087</els_id><sourcerecordid>18021170</sourcerecordid><originalsourceid>FETCH-LOGICAL-a505t-2948ff63fdb27f61d66d6421b89b794ad0d9259c0f635fed26f900488844d9243</originalsourceid><addsrcrecordid>eNqFkU9P3DAQxS1EJZZtPwKST6g9BMZJHNunCq3KHwmJQ7dny2uPWaNNHOxsq_bcD47DIq5cxof3mzfye4ScMbhgwLrLn1BmJaARX5X6BtCArMQRWTAp6krxpjkmi3fkhJzm_AQAgnNYkP_rLdKY-7DvachximOw1MZ-jDlMIQ7Ubs3wWBBPVzjEf7HIGQ39YyZM1GQaBo8poaM-xZ4a6hDHaiZsTDiPhHaa5ZhojxPGVHznE8OUwmY_38ifySdvdhm_vL1L8uv6x3p1W90_3Nytru4rw4FPVa1a6X3XeLephe-Y6zrXtTXbSLURqjUOnKq5slAY7tHVnVcArZSybYvSNktyfvAdU3zeY550H7LF3c4MGPdZ14JxWQw_BJmEmrES55LwA2hTzDmh12MKvUl_NQM9l6Nfy9Fz8lop_VqOFmXv-2EPy3d_B0w624CDRRfmvLSL4QOHF02amFY</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>18021170</pqid></control><display><type>article</type><title>The osmium isotopic composition change of Cenozoic sea water as inferred from a deep-sea core corrected for meteoritic contributions</title><source>Elsevier ScienceDirect Journals Complete</source><creator>Pegram, William J ; Turekian, Karl K</creator><creatorcontrib>Pegram, William J ; Turekian, Karl K</creatorcontrib><description>A detailed study was made of the oceanic
187Os/
186Os variation through the Cenozoic by using a hydrogen peroxide leaching procedure on a pelagic clay core from the North Pacific (Long Lines-44 GPC3). A 6% H
2O
2 solution was used. The range of
187Os/
186Os obtained by this procedure was between 2 and 8.2. A milder leach (0.15% H
2O
2) in three out of four samples yielded a slightly higher
187Os/
186Os value than the stronger leach implying that the stronger leach released some meteoritic Os with
187Os/
186Os of 1. Using published
3He concentrations in GPC3 and cosmic dust
3He and Os fluxes to deep-sea sediments, the extraterrestrial Os concentration was estimated for each core segment and subtracted to yield “corrected” values of
187Os/
186Os. The results based on the milder leaching protocol and the
3He correction protocol yield similar values. The “corrected” ocean water
187Os/
186Os pattern for the past 25 million years is similar to that obtained by other workers and is compatible with other results for the entire Cenozoic. The variation with time in GPC3, uniquely, provides a statigraphic signature for the Paleogene.</description><identifier>ISSN: 0016-7037</identifier><identifier>EISSN: 1872-9533</identifier><identifier>DOI: 10.1016/S0016-7037(99)00308-7</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Marine</subject><ispartof>Geochimica et cosmochimica acta, 1999-12, Vol.63 (23), p.4053-4058</ispartof><rights>1999 Elsevier Science Ltd</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a505t-2948ff63fdb27f61d66d6421b89b794ad0d9259c0f635fed26f900488844d9243</citedby><cites>FETCH-LOGICAL-a505t-2948ff63fdb27f61d66d6421b89b794ad0d9259c0f635fed26f900488844d9243</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0016703799003087$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Pegram, William J</creatorcontrib><creatorcontrib>Turekian, Karl K</creatorcontrib><title>The osmium isotopic composition change of Cenozoic sea water as inferred from a deep-sea core corrected for meteoritic contributions</title><title>Geochimica et cosmochimica acta</title><description>A detailed study was made of the oceanic
187Os/
186Os variation through the Cenozoic by using a hydrogen peroxide leaching procedure on a pelagic clay core from the North Pacific (Long Lines-44 GPC3). A 6% H
2O
2 solution was used. The range of
187Os/
186Os obtained by this procedure was between 2 and 8.2. A milder leach (0.15% H
2O
2) in three out of four samples yielded a slightly higher
187Os/
186Os value than the stronger leach implying that the stronger leach released some meteoritic Os with
187Os/
186Os of 1. Using published
3He concentrations in GPC3 and cosmic dust
3He and Os fluxes to deep-sea sediments, the extraterrestrial Os concentration was estimated for each core segment and subtracted to yield “corrected” values of
187Os/
186Os. The results based on the milder leaching protocol and the
3He correction protocol yield similar values. The “corrected” ocean water
187Os/
186Os pattern for the past 25 million years is similar to that obtained by other workers and is compatible with other results for the entire Cenozoic. The variation with time in GPC3, uniquely, provides a statigraphic signature for the Paleogene.</description><subject>Marine</subject><issn>0016-7037</issn><issn>1872-9533</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1999</creationdate><recordtype>article</recordtype><recordid>eNqFkU9P3DAQxS1EJZZtPwKST6g9BMZJHNunCq3KHwmJQ7dny2uPWaNNHOxsq_bcD47DIq5cxof3mzfye4ScMbhgwLrLn1BmJaARX5X6BtCArMQRWTAp6krxpjkmi3fkhJzm_AQAgnNYkP_rLdKY-7DvachximOw1MZ-jDlMIQ7Ubs3wWBBPVzjEf7HIGQ39YyZM1GQaBo8poaM-xZ4a6hDHaiZsTDiPhHaa5ZhojxPGVHznE8OUwmY_38ifySdvdhm_vL1L8uv6x3p1W90_3Nytru4rw4FPVa1a6X3XeLephe-Y6zrXtTXbSLURqjUOnKq5slAY7tHVnVcArZSybYvSNktyfvAdU3zeY550H7LF3c4MGPdZ14JxWQw_BJmEmrES55LwA2hTzDmh12MKvUl_NQM9l6Nfy9Fz8lop_VqOFmXv-2EPy3d_B0w624CDRRfmvLSL4QOHF02amFY</recordid><startdate>19991201</startdate><enddate>19991201</enddate><creator>Pegram, William J</creator><creator>Turekian, Karl K</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>7TN</scope><scope>F1W</scope><scope>H96</scope><scope>KL.</scope><scope>L.G</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>19991201</creationdate><title>The osmium isotopic composition change of Cenozoic sea water as inferred from a deep-sea core corrected for meteoritic contributions</title><author>Pegram, William J ; Turekian, Karl K</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a505t-2948ff63fdb27f61d66d6421b89b794ad0d9259c0f635fed26f900488844d9243</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1999</creationdate><topic>Marine</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pegram, William J</creatorcontrib><creatorcontrib>Turekian, Karl K</creatorcontrib><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Oceanic Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Geochimica et cosmochimica acta</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pegram, William J</au><au>Turekian, Karl K</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The osmium isotopic composition change of Cenozoic sea water as inferred from a deep-sea core corrected for meteoritic contributions</atitle><jtitle>Geochimica et cosmochimica acta</jtitle><date>1999-12-01</date><risdate>1999</risdate><volume>63</volume><issue>23</issue><spage>4053</spage><epage>4058</epage><pages>4053-4058</pages><issn>0016-7037</issn><eissn>1872-9533</eissn><abstract>A detailed study was made of the oceanic
187Os/
186Os variation through the Cenozoic by using a hydrogen peroxide leaching procedure on a pelagic clay core from the North Pacific (Long Lines-44 GPC3). A 6% H
2O
2 solution was used. The range of
187Os/
186Os obtained by this procedure was between 2 and 8.2. A milder leach (0.15% H
2O
2) in three out of four samples yielded a slightly higher
187Os/
186Os value than the stronger leach implying that the stronger leach released some meteoritic Os with
187Os/
186Os of 1. Using published
3He concentrations in GPC3 and cosmic dust
3He and Os fluxes to deep-sea sediments, the extraterrestrial Os concentration was estimated for each core segment and subtracted to yield “corrected” values of
187Os/
186Os. The results based on the milder leaching protocol and the
3He correction protocol yield similar values. The “corrected” ocean water
187Os/
186Os pattern for the past 25 million years is similar to that obtained by other workers and is compatible with other results for the entire Cenozoic. The variation with time in GPC3, uniquely, provides a statigraphic signature for the Paleogene.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/S0016-7037(99)00308-7</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0016-7037 |
| ispartof | Geochimica et cosmochimica acta, 1999-12, Vol.63 (23), p.4053-4058 |
| issn | 0016-7037 1872-9533 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_27158421 |
| source | Elsevier ScienceDirect Journals Complete |
| subjects | Marine |
| title | The osmium isotopic composition change of Cenozoic sea water as inferred from a deep-sea core corrected for meteoritic contributions |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-11T19%3A42%3A14IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=The%20osmium%20isotopic%20composition%20change%20of%20Cenozoic%20sea%20water%20as%20inferred%20from%20a%20deep-sea%20core%20corrected%20for%20meteoritic%20contributions&rft.jtitle=Geochimica%20et%20cosmochimica%20acta&rft.au=Pegram,%20William%20J&rft.date=1999-12-01&rft.volume=63&rft.issue=23&rft.spage=4053&rft.epage=4058&rft.pages=4053-4058&rft.issn=0016-7037&rft.eissn=1872-9533&rft_id=info:doi/10.1016/S0016-7037(99)00308-7&rft_dat=%3Cproquest_cross%3E18021170%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=18021170&rft_id=info:pmid/&rft_els_id=S0016703799003087&rfr_iscdi=true |