Applications of the Pt-190-Os-186 isotope system to geochemistry and cosmochemistry

Applications of the Pt-190-Os-186 isotope system to geochemistry and cosmochemistry

New analytical techniques are utilized that permit the precise and accurate measurement of Pt-190-Os-186 isotope systematics. These techniques are applied to three different systems: sulfide ores associated with the 251.2 +/- 0.3 Ma Noril'sk, Siberia plume; the ca 4.55 Ga group IIAB iron meteor...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Geochimica et cosmochimica acta 1997-11, Vol.61 (22), p.4799-4807
Hauptverfasser: Walker, Richard J, Morgan, John W, Beary, Ellyn S, Smoliar, Michael I, Czamanske, Gerald K, Horan, Mary F
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 4807
container_issue 22
container_start_page 4799
container_title Geochimica et cosmochimica acta
container_volume 61
creator Walker, Richard J
Morgan, John W
Beary, Ellyn S
Smoliar, Michael I
Czamanske, Gerald K
Horan, Mary F
description New analytical techniques are utilized that permit the precise and accurate measurement of Pt-190-Os-186 isotope systematics. These techniques are applied to three different systems: sulfide ores associated with the 251.2 +/- 0.3 Ma Noril'sk, Siberia plume; the ca 4.55 Ga group IIAB iron meteorites, which are samples of an asteroidal core; and six enstatite chondrites. Isochrons are reported for the Noril'sk and IIAB systems. The results permit a precise determination of the decay constant of Pt-190. The Os-186 /Os-188 ratios for a variety of osmiridiums associated with ultramafic systems purportedly derived from the upper mantle, and the carbonaceous chondrite Allende was also determined. Both geochemical and cosmochemical applications of the system are discussed. (AIAA)
doi_str_mv 10.1016/S0016-7037(97)00270-6
format Article
fullrecord <record><control><sourceid>proquest</sourceid><recordid>TN_cdi_proquest_miscellaneous_27289123</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>27289123</sourcerecordid><originalsourceid>FETCH-LOGICAL-p116t-dbcbf684d794d71253f45c74b2c83f73eaed1bd04973ab678430465ecc45c4233</originalsourceid><addsrcrecordid>eNpFjU1LAzEYhHNQsFZ_gpCT6CH65mOT3WMpfkGhQvVcstl37cruJvZND_33Lih6mBl4GGYYu5JwJ0Ha-w1MLhxod1O5WwDlQNgTNvvDZ-yc6BMAXFHAjG0WKfVd8LmLI_HY8rxD_pqFrECsScjS8o5ijgk5HSnjwHPkHxjDDoeO8v7I_djwEGn4RxfstPU94eVvztn748Pb8lms1k8vy8VKJCltFk0d6taWpnHVJKkK3ZoiOFOrUOrWafTYyLoBUznta-tKo8HYAkOYakZpPWfXP7tpH78OSHk7_Qfsez9iPNBWOVVWcip-A-gVUgg</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>27289123</pqid></control><display><type>article</type><title>Applications of the Pt-190-Os-186 isotope system to geochemistry and cosmochemistry</title><source>ScienceDirect Freedom Collection (Elsevier)</source><creator>Walker, Richard J ; Morgan, John W ; Beary, Ellyn S ; Smoliar, Michael I ; Czamanske, Gerald K ; Horan, Mary F</creator><creatorcontrib>Walker, Richard J ; Morgan, John W ; Beary, Ellyn S ; Smoliar, Michael I ; Czamanske, Gerald K ; Horan, Mary F</creatorcontrib><description>New analytical techniques are utilized that permit the precise and accurate measurement of Pt-190-Os-186 isotope systematics. These techniques are applied to three different systems: sulfide ores associated with the 251.2 +/- 0.3 Ma Noril'sk, Siberia plume; the ca 4.55 Ga group IIAB iron meteorites, which are samples of an asteroidal core; and six enstatite chondrites. Isochrons are reported for the Noril'sk and IIAB systems. The results permit a precise determination of the decay constant of Pt-190. The Os-186 /Os-188 ratios for a variety of osmiridiums associated with ultramafic systems purportedly derived from the upper mantle, and the carbonaceous chondrite Allende was also determined. Both geochemical and cosmochemical applications of the system are discussed. (AIAA)</description><identifier>ISSN: 0016-7037</identifier><identifier>DOI: 10.1016/S0016-7037(97)00270-6</identifier><language>eng</language><ispartof>Geochimica et cosmochimica acta, 1997-11, Vol.61 (22), p.4799-4807</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Walker, Richard J</creatorcontrib><creatorcontrib>Morgan, John W</creatorcontrib><creatorcontrib>Beary, Ellyn S</creatorcontrib><creatorcontrib>Smoliar, Michael I</creatorcontrib><creatorcontrib>Czamanske, Gerald K</creatorcontrib><creatorcontrib>Horan, Mary F</creatorcontrib><title>Applications of the Pt-190-Os-186 isotope system to geochemistry and cosmochemistry</title><title>Geochimica et cosmochimica acta</title><description>New analytical techniques are utilized that permit the precise and accurate measurement of Pt-190-Os-186 isotope systematics. These techniques are applied to three different systems: sulfide ores associated with the 251.2 +/- 0.3 Ma Noril'sk, Siberia plume; the ca 4.55 Ga group IIAB iron meteorites, which are samples of an asteroidal core; and six enstatite chondrites. Isochrons are reported for the Noril'sk and IIAB systems. The results permit a precise determination of the decay constant of Pt-190. The Os-186 /Os-188 ratios for a variety of osmiridiums associated with ultramafic systems purportedly derived from the upper mantle, and the carbonaceous chondrite Allende was also determined. Both geochemical and cosmochemical applications of the system are discussed. (AIAA)</description><issn>0016-7037</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1997</creationdate><recordtype>article</recordtype><recordid>eNpFjU1LAzEYhHNQsFZ_gpCT6CH65mOT3WMpfkGhQvVcstl37cruJvZND_33Lih6mBl4GGYYu5JwJ0Ha-w1MLhxod1O5WwDlQNgTNvvDZ-yc6BMAXFHAjG0WKfVd8LmLI_HY8rxD_pqFrECsScjS8o5ijgk5HSnjwHPkHxjDDoeO8v7I_djwEGn4RxfstPU94eVvztn748Pb8lms1k8vy8VKJCltFk0d6taWpnHVJKkK3ZoiOFOrUOrWafTYyLoBUznta-tKo8HYAkOYakZpPWfXP7tpH78OSHk7_Qfsez9iPNBWOVVWcip-A-gVUgg</recordid><startdate>19971101</startdate><enddate>19971101</enddate><creator>Walker, Richard J</creator><creator>Morgan, John W</creator><creator>Beary, Ellyn S</creator><creator>Smoliar, Michael I</creator><creator>Czamanske, Gerald K</creator><creator>Horan, Mary F</creator><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>19971101</creationdate><title>Applications of the Pt-190-Os-186 isotope system to geochemistry and cosmochemistry</title><author>Walker, Richard J ; Morgan, John W ; Beary, Ellyn S ; Smoliar, Michael I ; Czamanske, Gerald K ; Horan, Mary F</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p116t-dbcbf684d794d71253f45c74b2c83f73eaed1bd04973ab678430465ecc45c4233</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1997</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Walker, Richard J</creatorcontrib><creatorcontrib>Morgan, John W</creatorcontrib><creatorcontrib>Beary, Ellyn S</creatorcontrib><creatorcontrib>Smoliar, Michael I</creatorcontrib><creatorcontrib>Czamanske, Gerald K</creatorcontrib><creatorcontrib>Horan, Mary F</creatorcontrib><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>Walker, Richard J</au><au>Morgan, John W</au><au>Beary, Ellyn S</au><au>Smoliar, Michael I</au><au>Czamanske, Gerald K</au><au>Horan, Mary F</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Applications of the Pt-190-Os-186 isotope system to geochemistry and cosmochemistry</atitle><jtitle>Geochimica et cosmochimica acta</jtitle><date>1997-11-01</date><risdate>1997</risdate><volume>61</volume><issue>22</issue><spage>4799</spage><epage>4807</epage><pages>4799-4807</pages><issn>0016-7037</issn><abstract>New analytical techniques are utilized that permit the precise and accurate measurement of Pt-190-Os-186 isotope systematics. These techniques are applied to three different systems: sulfide ores associated with the 251.2 +/- 0.3 Ma Noril'sk, Siberia plume; the ca 4.55 Ga group IIAB iron meteorites, which are samples of an asteroidal core; and six enstatite chondrites. Isochrons are reported for the Noril'sk and IIAB systems. The results permit a precise determination of the decay constant of Pt-190. The Os-186 /Os-188 ratios for a variety of osmiridiums associated with ultramafic systems purportedly derived from the upper mantle, and the carbonaceous chondrite Allende was also determined. Both geochemical and cosmochemical applications of the system are discussed. (AIAA)</abstract><doi>10.1016/S0016-7037(97)00270-6</doi><tpages>9</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0016-7037
ispartof Geochimica et cosmochimica acta, 1997-11, Vol.61 (22), p.4799-4807
issn 0016-7037
language eng
recordid cdi_proquest_miscellaneous_27289123
source ScienceDirect Freedom Collection (Elsevier)
title Applications of the Pt-190-Os-186 isotope system to geochemistry and cosmochemistry
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-20T19%3A29%3A45IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Applications%20of%20the%20Pt-190-Os-186%20isotope%20system%20to%20geochemistry%20and%20cosmochemistry&rft.jtitle=Geochimica%20et%20cosmochimica%20acta&rft.au=Walker,%20Richard%20J&rft.date=1997-11-01&rft.volume=61&rft.issue=22&rft.spage=4799&rft.epage=4807&rft.pages=4799-4807&rft.issn=0016-7037&rft_id=info:doi/10.1016/S0016-7037(97)00270-6&rft_dat=%3Cproquest%3E27289123%3C/proquest%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=27289123&rft_id=info:pmid/&rfr_iscdi=true