The Sr, Nd isotopic composition of lamprophyres in Laowangzhai gold orefield, Yunnan Province

Lamprophyres are widely spread over the Laowangzhai gold orefield in northern Mt. Ailao structure zone, Yunnan Province. Lampmphyres in the orefield are temporally and spatially related to gold mineralization. Lampmphyren in the orefield have anomalous Sr and Nd isotopic compositions, e.g. the⁸⁷Sr/⁸...

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Published in:Chinese science bulletin 1998-06, Vol.43 (11), p.950-954
Main Authors: Zhilong, Huang, Zhisheng, Jin, Chengming, Zhu, Liankui, Wang, Xianhua, Li
Format: Article
Language:English
Subjects:
Composition
Contamination
Gold
Isotopes
isotopic
lamprophyre
Laowangzhai
Magma
mantle
metasomatism
Mineralization
orefield
Province
Ratios
strontium
Yunnan
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Zhisheng, Jin
Chengming, Zhu
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description Lamprophyres are widely spread over the Laowangzhai gold orefield in northern Mt. Ailao structure zone, Yunnan Province. Lampmphyres in the orefield are temporally and spatially related to gold mineralization. Lampmphyren in the orefield have anomalous Sr and Nd isotopic compositions, e.g. the⁸⁷Sr/⁸⁶Sr ratios (0.706 665–0.707 960, the⁸⁷Sr/⁸⁶Sr ratio of sample YLW-44 is 0.709 041) are higher than the modern value of the original mantle (0.704 5), the¹⁴³Nd/¹⁴⁴Nd ration (0.512 463–0.512 551) are lower than the modern value of the original mantle (0.512 638), and the calculated values εSᵣ > 0 (28.1–63.7) and εNd< 0 (- 1.34- -3.07). The results of investigation inete that lampmphyres in the Laowangzhai gold orefield with anomalous Sr and Nd isotopic compositions would not be produced as a result of contamination of the primary magma with the isotopic features of MORB by the crust materials high⁸⁷Sr/⁸⁶Sr ratios and low¹⁴³Nd/¹⁴⁴Nd ratios in the ploeaws of rising or in the magma chamber, but the result of metasomatism of source mantle.
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Ailao structure zone, Yunnan Province. Lampmphyres in the orefield are temporally and spatially related to gold mineralization. Lampmphyren in the orefield have anomalous Sr and Nd isotopic compositions, e.g. the⁸⁷Sr/⁸⁶Sr ratios (0.706 665–0.707 960, the⁸⁷Sr/⁸⁶Sr ratio of sample YLW-44 is 0.709 041) are higher than the modern value of the original mantle (0.704 5), the¹⁴³Nd/¹⁴⁴Nd ration (0.512 463–0.512 551) are lower than the modern value of the original mantle (0.512 638), and the calculated values εSᵣ &gt; 0 (28.1–63.7) and εNd&lt; 0 (- 1.34- -3.07). The results of investigation inete that lampmphyres in the Laowangzhai gold orefield with anomalous Sr and Nd isotopic compositions would not be produced as a result of contamination of the primary magma with the isotopic features of MORB by the crust materials high⁸⁷Sr/⁸⁶Sr ratios and low¹⁴³Nd/¹⁴⁴Nd ratios in the ploeaws of rising or in the magma chamber, but the result of metasomatism of source mantle.</description><identifier>ISSN: 1001-6538</identifier><identifier>ISSN: 2095-9273</identifier><identifier>EISSN: 1861-9541</identifier><identifier>EISSN: 2095-9281</identifier><identifier>DOI: 10.1007/bf02884621</identifier><language>eng</language><publisher>Beijing: Science in China Press</publisher><subject>Composition ; Contamination ; Gold ; Isotopes ; isotopic ; lamprophyre ; Laowangzhai ; Magma ; mantle ; metasomatism ; Mineralization ; orefield ; Province ; Ratios ; strontium ; Yunnan</subject><ispartof>Chinese science bulletin, 1998-06, Vol.43 (11), p.950-954</ispartof><rights>Science in China Press 1998.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a332t-e55a3b107b9969260d54cb27496832a6162649c5058fbf22971296fc82b6436a3</citedby><cites>FETCH-LOGICAL-a332t-e55a3b107b9969260d54cb27496832a6162649c5058fbf22971296fc82b6436a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/86894X/86894X.jpg</thumbnail><link.rule.ids>314,780,784,1644,27924,27925</link.rule.ids></links><search><creatorcontrib>Zhilong, Huang</creatorcontrib><creatorcontrib>Zhisheng, Jin</creatorcontrib><creatorcontrib>Chengming, Zhu</creatorcontrib><creatorcontrib>Liankui, Wang</creatorcontrib><creatorcontrib>Xianhua, Li</creatorcontrib><title>The Sr, Nd isotopic composition of lamprophyres in Laowangzhai gold orefield, Yunnan Province</title><title>Chinese science bulletin</title><addtitle>Chinese Science Bulletin</addtitle><description>Lamprophyres are widely spread over the Laowangzhai gold orefield in northern Mt. Ailao structure zone, Yunnan Province. Lampmphyres in the orefield are temporally and spatially related to gold mineralization. Lampmphyren in the orefield have anomalous Sr and Nd isotopic compositions, e.g. the⁸⁷Sr/⁸⁶Sr ratios (0.706 665–0.707 960, the⁸⁷Sr/⁸⁶Sr ratio of sample YLW-44 is 0.709 041) are higher than the modern value of the original mantle (0.704 5), the¹⁴³Nd/¹⁴⁴Nd ration (0.512 463–0.512 551) are lower than the modern value of the original mantle (0.512 638), and the calculated values εSᵣ &gt; 0 (28.1–63.7) and εNd&lt; 0 (- 1.34- -3.07). The results of investigation inete that lampmphyres in the Laowangzhai gold orefield with anomalous Sr and Nd isotopic compositions would not be produced as a result of contamination of the primary magma with the isotopic features of MORB by the crust materials high⁸⁷Sr/⁸⁶Sr ratios and low¹⁴³Nd/¹⁴⁴Nd ratios in the ploeaws of rising or in the magma chamber, but the result of metasomatism of source mantle.</description><subject>Composition</subject><subject>Contamination</subject><subject>Gold</subject><subject>Isotopes</subject><subject>isotopic</subject><subject>lamprophyre</subject><subject>Laowangzhai</subject><subject>Magma</subject><subject>mantle</subject><subject>metasomatism</subject><subject>Mineralization</subject><subject>orefield</subject><subject>Province</subject><subject>Ratios</subject><subject>strontium</subject><subject>Yunnan</subject><issn>1001-6538</issn><issn>2095-9273</issn><issn>1861-9541</issn><issn>2095-9281</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1998</creationdate><recordtype>article</recordtype><recordid>eNpFkEtLAzEUhQdRsFY3_gED7qSjeU0mWWqxKhQV2i5cSMhkHk2ZJmMyVeqvN1Ifq3sufJxzOElyiuAlgjC_KmqIOacMo71kgDhDqcgo2o8aQpSyjPDD5CiEVfwIyvEgeZ0vKzDzI_BYAhNc7zqjgXbrzgXTG2eBq0Gr1p133XLrqwCMBVPlPpRtPpfKgMa1JXC-qk3VliPwsrFWWfDs3buxujpODmrVhurk5w6TxeR2Pr5Pp093D-PraaoIwX1aZZkiBYJ5IQQTmMEyo7rAORWME6wYYphRoTOY8bqoMRY5woLVmuOCUcIUGSbnO9_Y821ThV6u3MbbGClxzpmgmHISqYsdpb0LIXaWnTdr5bcSQfk9n7yZ_M4X4bMdXCsnVeNNkIsZhohBCDHMRfYfqpfONm_GNn9-NEICIcQF-QKrzHUF</recordid><startdate>19980601</startdate><enddate>19980601</enddate><creator>Zhilong, Huang</creator><creator>Zhisheng, Jin</creator><creator>Chengming, Zhu</creator><creator>Liankui, Wang</creator><creator>Xianhua, Li</creator><general>Science in China Press</general><general>Springer Nature B.V</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>~WA</scope><scope>FBQ</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>19980601</creationdate><title>The Sr, Nd isotopic composition of lamprophyres in Laowangzhai gold orefield, Yunnan Province</title><author>Zhilong, Huang ; Zhisheng, Jin ; Chengming, Zhu ; Liankui, Wang ; Xianhua, Li</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a332t-e55a3b107b9969260d54cb27496832a6162649c5058fbf22971296fc82b6436a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1998</creationdate><topic>Composition</topic><topic>Contamination</topic><topic>Gold</topic><topic>Isotopes</topic><topic>isotopic</topic><topic>lamprophyre</topic><topic>Laowangzhai</topic><topic>Magma</topic><topic>mantle</topic><topic>metasomatism</topic><topic>Mineralization</topic><topic>orefield</topic><topic>Province</topic><topic>Ratios</topic><topic>strontium</topic><topic>Yunnan</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhilong, Huang</creatorcontrib><creatorcontrib>Zhisheng, Jin</creatorcontrib><creatorcontrib>Chengming, Zhu</creatorcontrib><creatorcontrib>Liankui, Wang</creatorcontrib><creatorcontrib>Xianhua, Li</creatorcontrib><collection>维普_期刊</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>维普中文期刊数据库</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>AGRIS</collection><collection>CrossRef</collection><jtitle>Chinese science bulletin</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhilong, Huang</au><au>Zhisheng, Jin</au><au>Chengming, Zhu</au><au>Liankui, Wang</au><au>Xianhua, Li</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The Sr, Nd isotopic composition of lamprophyres in Laowangzhai gold orefield, Yunnan Province</atitle><jtitle>Chinese science bulletin</jtitle><addtitle>Chinese Science Bulletin</addtitle><date>1998-06-01</date><risdate>1998</risdate><volume>43</volume><issue>11</issue><spage>950</spage><epage>954</epage><pages>950-954</pages><issn>1001-6538</issn><issn>2095-9273</issn><eissn>1861-9541</eissn><eissn>2095-9281</eissn><abstract>Lamprophyres are widely spread over the Laowangzhai gold orefield in northern Mt. Ailao structure zone, Yunnan Province. Lampmphyres in the orefield are temporally and spatially related to gold mineralization. Lampmphyren in the orefield have anomalous Sr and Nd isotopic compositions, e.g. the⁸⁷Sr/⁸⁶Sr ratios (0.706 665–0.707 960, the⁸⁷Sr/⁸⁶Sr ratio of sample YLW-44 is 0.709 041) are higher than the modern value of the original mantle (0.704 5), the¹⁴³Nd/¹⁴⁴Nd ration (0.512 463–0.512 551) are lower than the modern value of the original mantle (0.512 638), and the calculated values εSᵣ &gt; 0 (28.1–63.7) and εNd&lt; 0 (- 1.34- -3.07). The results of investigation inete that lampmphyres in the Laowangzhai gold orefield with anomalous Sr and Nd isotopic compositions would not be produced as a result of contamination of the primary magma with the isotopic features of MORB by the crust materials high⁸⁷Sr/⁸⁶Sr ratios and low¹⁴³Nd/¹⁴⁴Nd ratios in the ploeaws of rising or in the magma chamber, but the result of metasomatism of source mantle.</abstract><cop>Beijing</cop><pub>Science in China Press</pub><doi>10.1007/bf02884621</doi><tpages>5</tpages></addata></record>
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subjects Composition
Contamination
Gold
Isotopes
isotopic
lamprophyre
Laowangzhai
Magma
mantle
metasomatism
Mineralization
orefield
Province
Ratios
strontium
Yunnan
title The Sr, Nd isotopic composition of lamprophyres in Laowangzhai gold orefield, Yunnan Province
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