Age of Anzishan granulites in the Mianxian-Lueyang suture zone of Qingling orogen: With a discussion of the timing of final assembly of Yangtze and North China craton blocks
Many granulite blocks have been recently discovered in the Anzishan area, Mianxian County, Shaanxi Province, in the central segment of the Mianxian-Lueyang suture zone. Sm-Nd isochron and 40Ar/39Ar ages of mineral samples of granulites from this area are reported in the note. The granulite mineral s...
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| Veröffentlicht in: | Chinese science bulletin 2002-11, Vol.47 (22), p.1925-1930 |
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| creator | ZHANG, Zongqing |
| description | Many granulite blocks have been recently discovered in the Anzishan area, Mianxian County, Shaanxi Province, in the central segment of the Mianxian-Lueyang suture zone. Sm-Nd isochron and 40Ar/39Ar ages of mineral samples of granulites from this area are reported in the note. The granulite mineral samples give a Sm-Nd isochron age of t=(206 ±55) Ma (2σ), with INd = 0.51302±7(2σ) and MSWD = 1.6, and a biotite 40Ar/39Ar plateau age of (199.7±1.7) Ma (2σ). The formation and uplift of the granulites were related to subduction of the Yangtze block beneath the South Qinling microcontinent and their collision and the final amalgamation of the Yangtze and Sino-Korean craton blocks in the Indosinian, and their age is consistent with or close to those of the Dabie ultrahigh-pressure and high-pressure metamorphic rocks, so have great tectonic significance. |
| doi_str_mv | 10.1360/02tb9420 |
| format | Article |
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Sm-Nd isochron and 40Ar/39Ar ages of mineral samples of granulites from this area are reported in the note. The granulite mineral samples give a Sm-Nd isochron age of t=(206 ±55) Ma (2σ), with INd = 0.51302±7(2σ) and MSWD = 1.6, and a biotite 40Ar/39Ar plateau age of (199.7±1.7) Ma (2σ). The formation and uplift of the granulites were related to subduction of the Yangtze block beneath the South Qinling microcontinent and their collision and the final amalgamation of the Yangtze and Sino-Korean craton blocks in the Indosinian, and their age is consistent with or close to those of the Dabie ultrahigh-pressure and high-pressure metamorphic rocks, so have great tectonic significance.</description><identifier>ISSN: 1001-6538</identifier><identifier>ISSN: 2095-9273</identifier><identifier>EISSN: 2095-9281</identifier><identifier>DOI: 10.1360/02tb9420</identifier><language>eng</language><publisher>Beijing: Springer Nature B.V</publisher><subject>Age ; Argon ; Biotite ; Metamorphic rocks ; Orogeny ; Radiometric dating ; Subduction (geology) ; Tectonics</subject><ispartof>Chinese science bulletin, 2002-11, Vol.47 (22), p.1925-1930</ispartof><rights>Science in China Press 2002.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a278t-5d098a0c603bddab7017884bee2c638a9baf3b8b9bd69aa0b131a49d405b76cd3</citedby></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>ZHANG, Zongqing</creatorcontrib><title>Age of Anzishan granulites in the Mianxian-Lueyang suture zone of Qingling orogen: With a discussion of the timing of final assembly of Yangtze and North China craton blocks</title><title>Chinese science bulletin</title><description>Many granulite blocks have been recently discovered in the Anzishan area, Mianxian County, Shaanxi Province, in the central segment of the Mianxian-Lueyang suture zone. Sm-Nd isochron and 40Ar/39Ar ages of mineral samples of granulites from this area are reported in the note. The granulite mineral samples give a Sm-Nd isochron age of t=(206 ±55) Ma (2σ), with INd = 0.51302±7(2σ) and MSWD = 1.6, and a biotite 40Ar/39Ar plateau age of (199.7±1.7) Ma (2σ). The formation and uplift of the granulites were related to subduction of the Yangtze block beneath the South Qinling microcontinent and their collision and the final amalgamation of the Yangtze and Sino-Korean craton blocks in the Indosinian, and their age is consistent with or close to those of the Dabie ultrahigh-pressure and high-pressure metamorphic rocks, so have great tectonic significance.</description><subject>Age</subject><subject>Argon</subject><subject>Biotite</subject><subject>Metamorphic rocks</subject><subject>Orogeny</subject><subject>Radiometric dating</subject><subject>Subduction (geology)</subject><subject>Tectonics</subject><issn>1001-6538</issn><issn>2095-9273</issn><issn>2095-9281</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><recordid>eNo1kdtKAzEQhoMoWKvgIwx4481qdrOneFeKJ6iKoIhXy2Q3u03dJjXJgu07-Y6mVi9-QoYv3wwZQk5jehGznF7SxAueJnSPjBLKs4gnZbxPRjGlcZRnrDwkR84two3FRTIi35NOgmlhojfKzVFDZ1EPvfLSgdLg5xIeFOqvkGg2yDXqDtzgBythY_Tv02eluz4EjDWd1FfwpvwcEBrl6sE5ZfSW2pq8Wv5yLbRKYw_onFyKfr2tvAez30hA3cCjscEwnQcIaos-GERv6g93TA5a7J08-TvH5PXm-mV6F82ebu-nk1mESVH6KGsoL5HWOWWiaVAUNC7KMhVSJnXOSuQCWyZKwUWTc0QqwmdgypuUZqLI64aNydnOu7Lmc5DOVwsz2DCyq0KDnKdFzrJAne-o2hrnrGyrlVVLtOsqptV2GdX_MtgPFDd_Nw</recordid><startdate>20021101</startdate><enddate>20021101</enddate><creator>ZHANG, Zongqing</creator><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20021101</creationdate><title>Age of Anzishan granulites in the Mianxian-Lueyang suture zone of Qingling orogen: With a discussion of the timing of final assembly of Yangtze and North China craton blocks</title><author>ZHANG, Zongqing</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a278t-5d098a0c603bddab7017884bee2c638a9baf3b8b9bd69aa0b131a49d405b76cd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Age</topic><topic>Argon</topic><topic>Biotite</topic><topic>Metamorphic rocks</topic><topic>Orogeny</topic><topic>Radiometric dating</topic><topic>Subduction (geology)</topic><topic>Tectonics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>ZHANG, Zongqing</creatorcontrib><collection>CrossRef</collection><jtitle>Chinese science bulletin</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>ZHANG, Zongqing</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Age of Anzishan granulites in the Mianxian-Lueyang suture zone of Qingling orogen: With a discussion of the timing of final assembly of Yangtze and North China craton blocks</atitle><jtitle>Chinese science bulletin</jtitle><date>2002-11-01</date><risdate>2002</risdate><volume>47</volume><issue>22</issue><spage>1925</spage><epage>1930</epage><pages>1925-1930</pages><issn>1001-6538</issn><issn>2095-9273</issn><eissn>2095-9281</eissn><abstract>Many granulite blocks have been recently discovered in the Anzishan area, Mianxian County, Shaanxi Province, in the central segment of the Mianxian-Lueyang suture zone. Sm-Nd isochron and 40Ar/39Ar ages of mineral samples of granulites from this area are reported in the note. The granulite mineral samples give a Sm-Nd isochron age of t=(206 ±55) Ma (2σ), with INd = 0.51302±7(2σ) and MSWD = 1.6, and a biotite 40Ar/39Ar plateau age of (199.7±1.7) Ma (2σ). The formation and uplift of the granulites were related to subduction of the Yangtze block beneath the South Qinling microcontinent and their collision and the final amalgamation of the Yangtze and Sino-Korean craton blocks in the Indosinian, and their age is consistent with or close to those of the Dabie ultrahigh-pressure and high-pressure metamorphic rocks, so have great tectonic significance.</abstract><cop>Beijing</cop><pub>Springer Nature B.V</pub><doi>10.1360/02tb9420</doi><tpages>6</tpages></addata></record> |
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| source | Alma/SFX Local Collection |
| subjects | Age Argon Biotite Metamorphic rocks Orogeny Radiometric dating Subduction (geology) Tectonics |
| title | Age of Anzishan granulites in the Mianxian-Lueyang suture zone of Qingling orogen: With a discussion of the timing of final assembly of Yangtze and North China craton blocks |
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