REE and ε Nd of clay fractions in sediments from the eastern Pacific Ocean: Evidence for clay sources
Clay fractions in the non-calcareous surface sediments from the eastern Pacific were analyzed for clay minerals, REE and 143Nd/144Nd. Montmorillonite/illite ratio (M/I ratio), total REE contents (ΣREE), LREE/HREE ratio and cerium anomaly (δCe) may effectively indicate the genesis of clay minerals. C...
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| Veröffentlicht in: | Science China. Earth sciences 2005-05, Vol.48 (5), p.701-712 |
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| creator | Liu, Jihua Shi, Xuefa Chen, Lirong Huang, Yongyang Wang, Yinxi Cui, Yingchun Bu, Wenrui |
| description | Clay fractions in the non-calcareous surface sediments from the eastern Pacific were analyzed for clay minerals, REE and 143Nd/144Nd. Montmorillonite/illite ratio (M/I ratio), total REE contents (ΣREE), LREE/HREE ratio and cerium anomaly (δCe) may effectively indicate the genesis of clay minerals. Clay fractions with M/I ratio 0.85, ΣREE 1, δCe=0.86 to 1.5, ΣREE=200 to 350 μg/g, LREE/HREE ratio ≈6 and REE distribution patterns similar to that of China loess are identified as terrigenous clay fraction. The 143Nd/144Nd ratios or ɛNd values of clay fractions inherit the features of terrigenous sources of clay minerals. Clay fractions are divided into 4 types according to ɛNd values. Terrigenous clay minerals of type I with the ɛNd values of ™8 to ™6 originate mainly from North American fluvial deposits. Those of type II with the ε Nd values of ™9 to ™7 are mainly from the East Asia and North American fluvial deposits. Those of type III with ε Nd values of ™6 to ™3 could come from the central and eastern Pacific volcanic islands. Those of type IV with ε Nd values of ™13 to ™12 may be from East Asia eolian. The terrigenous and autogenetic mixed clay fractions show patchy distributions, indicating that there are volcanic or hot-spot activities in the eastern Pacific plate, while the terrigenous clay fractions cover a large part of the study area, proving that the terrigenous clay minerals are dominant in the eastern Pacific. |
| doi_str_mv | 10.1360/03yd0276 |
| format | Article |
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Montmorillonite/illite ratio (M/I ratio), total REE contents (ΣREE), LREE/HREE ratio and cerium anomaly (δCe) may effectively indicate the genesis of clay minerals. Clay fractions with M/I ratio <1, δCe >0.85, ΣREE <400 μg/g, LREE/HREE ratio ≈4, and REE patterns similar to those of pelagic sediments are terrigenous and autogenetic mixed clay fractions and contain more autogenetic montmorillonite. Clay fractions with M/I ratio >1, δCe=0.86 to 1.5, ΣREE=200 to 350 μg/g, LREE/HREE ratio ≈6 and REE distribution patterns similar to that of China loess are identified as terrigenous clay fraction. The 143Nd/144Nd ratios or ɛNd values of clay fractions inherit the features of terrigenous sources of clay minerals. Clay fractions are divided into 4 types according to ɛNd values. Terrigenous clay minerals of type I with the ɛNd values of ™8 to ™6 originate mainly from North American fluvial deposits. Those of type II with the ε Nd values of ™9 to ™7 are mainly from the East Asia and North American fluvial deposits. Those of type III with ε Nd values of ™6 to ™3 could come from the central and eastern Pacific volcanic islands. Those of type IV with ε Nd values of ™13 to ™12 may be from East Asia eolian. The terrigenous and autogenetic mixed clay fractions show patchy distributions, indicating that there are volcanic or hot-spot activities in the eastern Pacific plate, while the terrigenous clay fractions cover a large part of the study area, proving that the terrigenous clay minerals are dominant in the eastern Pacific.</description><identifier>ISSN: 1006-9313</identifier><identifier>ISSN: 1674-7313</identifier><identifier>EISSN: 1862-2801</identifier><identifier>EISSN: 1869-1897</identifier><identifier>DOI: 10.1360/03yd0276</identifier><language>eng</language><publisher>Dordrecht: Springer Nature B.V</publisher><subject>Cerium ; Clay ; Clay minerals ; Fluvial deposits ; Hot spots ; Hot spots (geology) ; Illite ; Illites ; Loess ; Minerals ; Montmorillonite ; Montmorillonites ; Neodymium isotopes ; Pelagic sediments ; Plates ; Sediments ; Soils ; Volcanic islands</subject><ispartof>Science China. Earth sciences, 2005-05, Vol.48 (5), p.701-712</ispartof><rights>Science in China Press 2005.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a192t-28286f977fd6da27fbcd9e00be368cd23777c2475d34411d235b4be3a51c6983</citedby><cites>FETCH-LOGICAL-a192t-28286f977fd6da27fbcd9e00be368cd23777c2475d34411d235b4be3a51c6983</cites></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>Liu, Jihua</creatorcontrib><creatorcontrib>Shi, Xuefa</creatorcontrib><creatorcontrib>Chen, Lirong</creatorcontrib><creatorcontrib>Huang, Yongyang</creatorcontrib><creatorcontrib>Wang, Yinxi</creatorcontrib><creatorcontrib>Cui, Yingchun</creatorcontrib><creatorcontrib>Bu, Wenrui</creatorcontrib><title>REE and ε Nd of clay fractions in sediments from the eastern Pacific Ocean: Evidence for clay sources</title><title>Science China. Earth sciences</title><description>Clay fractions in the non-calcareous surface sediments from the eastern Pacific were analyzed for clay minerals, REE and 143Nd/144Nd. Montmorillonite/illite ratio (M/I ratio), total REE contents (ΣREE), LREE/HREE ratio and cerium anomaly (δCe) may effectively indicate the genesis of clay minerals. Clay fractions with M/I ratio <1, δCe >0.85, ΣREE <400 μg/g, LREE/HREE ratio ≈4, and REE patterns similar to those of pelagic sediments are terrigenous and autogenetic mixed clay fractions and contain more autogenetic montmorillonite. Clay fractions with M/I ratio >1, δCe=0.86 to 1.5, ΣREE=200 to 350 μg/g, LREE/HREE ratio ≈6 and REE distribution patterns similar to that of China loess are identified as terrigenous clay fraction. The 143Nd/144Nd ratios or ɛNd values of clay fractions inherit the features of terrigenous sources of clay minerals. Clay fractions are divided into 4 types according to ɛNd values. Terrigenous clay minerals of type I with the ɛNd values of ™8 to ™6 originate mainly from North American fluvial deposits. Those of type II with the ε Nd values of ™9 to ™7 are mainly from the East Asia and North American fluvial deposits. Those of type III with ε Nd values of ™6 to ™3 could come from the central and eastern Pacific volcanic islands. Those of type IV with ε Nd values of ™13 to ™12 may be from East Asia eolian. The terrigenous and autogenetic mixed clay fractions show patchy distributions, indicating that there are volcanic or hot-spot activities in the eastern Pacific plate, while the terrigenous clay fractions cover a large part of the study area, proving that the terrigenous clay minerals are dominant in the eastern Pacific.</description><subject>Cerium</subject><subject>Clay</subject><subject>Clay minerals</subject><subject>Fluvial deposits</subject><subject>Hot spots</subject><subject>Hot spots (geology)</subject><subject>Illite</subject><subject>Illites</subject><subject>Loess</subject><subject>Minerals</subject><subject>Montmorillonite</subject><subject>Montmorillonites</subject><subject>Neodymium isotopes</subject><subject>Pelagic sediments</subject><subject>Plates</subject><subject>Sediments</subject><subject>Soils</subject><subject>Volcanic islands</subject><issn>1006-9313</issn><issn>1674-7313</issn><issn>1862-2801</issn><issn>1869-1897</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNo1UNtKAzEUDKJgrYKfEHzyZTWX3WTjm5T1AsWK9H3JJieY0iY12Qr9MH_DbzJSfZphzjBzGIQuKbmhXJBbwveWMCmO0IS2glWsJfS4cEJEpTjlp-gs5xUhXDW1miD31nVYB4u_v_CLxdFhs9Z77JI2o48hYx9wBus3EMZc5LjB4ztg0HmEFPCrNt55gxcGdLjD3ae3EAxgF9MhKMddMpDP0YnT6wwXfzhFy4duOXuq5ovH59n9vNJUsbE8y1rhlJTOCquZdIOxCggZgIvWWMallIbVsrG8riktQjPU5agbaoRq-RRdHWK3KX7sII_9qvSH0thLwRrJm1YU0_XBZFLMOYHrt8lvdNr3lPS_G_b_G_IfvtxjdA</recordid><startdate>20050501</startdate><enddate>20050501</enddate><creator>Liu, Jihua</creator><creator>Shi, Xuefa</creator><creator>Chen, Lirong</creator><creator>Huang, Yongyang</creator><creator>Wang, Yinxi</creator><creator>Cui, Yingchun</creator><creator>Bu, Wenrui</creator><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7TG</scope><scope>7UA</scope><scope>7XB</scope><scope>88I</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>GNUQQ</scope><scope>H96</scope><scope>HCIFZ</scope><scope>KL.</scope><scope>L.G</scope><scope>M2P</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope></search><sort><creationdate>20050501</creationdate><title>REE and ε Nd of clay fractions in sediments from the eastern Pacific Ocean: Evidence for clay sources</title><author>Liu, Jihua ; Shi, Xuefa ; Chen, Lirong ; Huang, Yongyang ; Wang, Yinxi ; Cui, Yingchun ; Bu, Wenrui</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a192t-28286f977fd6da27fbcd9e00be368cd23777c2475d34411d235b4be3a51c6983</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Cerium</topic><topic>Clay</topic><topic>Clay minerals</topic><topic>Fluvial deposits</topic><topic>Hot spots</topic><topic>Hot spots (geology)</topic><topic>Illite</topic><topic>Illites</topic><topic>Loess</topic><topic>Minerals</topic><topic>Montmorillonite</topic><topic>Montmorillonites</topic><topic>Neodymium isotopes</topic><topic>Pelagic sediments</topic><topic>Plates</topic><topic>Sediments</topic><topic>Soils</topic><topic>Volcanic islands</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liu, Jihua</creatorcontrib><creatorcontrib>Shi, Xuefa</creatorcontrib><creatorcontrib>Chen, Lirong</creatorcontrib><creatorcontrib>Huang, Yongyang</creatorcontrib><creatorcontrib>Wang, Yinxi</creatorcontrib><creatorcontrib>Cui, Yingchun</creatorcontrib><creatorcontrib>Bu, Wenrui</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>ProQuest Central Student</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>SciTech Premium Collection</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Science Database</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central Basic</collection><jtitle>Science China. Earth sciences</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liu, Jihua</au><au>Shi, Xuefa</au><au>Chen, Lirong</au><au>Huang, Yongyang</au><au>Wang, Yinxi</au><au>Cui, Yingchun</au><au>Bu, Wenrui</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>REE and ε Nd of clay fractions in sediments from the eastern Pacific Ocean: Evidence for clay sources</atitle><jtitle>Science China. Earth sciences</jtitle><date>2005-05-01</date><risdate>2005</risdate><volume>48</volume><issue>5</issue><spage>701</spage><epage>712</epage><pages>701-712</pages><issn>1006-9313</issn><issn>1674-7313</issn><eissn>1862-2801</eissn><eissn>1869-1897</eissn><abstract>Clay fractions in the non-calcareous surface sediments from the eastern Pacific were analyzed for clay minerals, REE and 143Nd/144Nd. Montmorillonite/illite ratio (M/I ratio), total REE contents (ΣREE), LREE/HREE ratio and cerium anomaly (δCe) may effectively indicate the genesis of clay minerals. Clay fractions with M/I ratio <1, δCe >0.85, ΣREE <400 μg/g, LREE/HREE ratio ≈4, and REE patterns similar to those of pelagic sediments are terrigenous and autogenetic mixed clay fractions and contain more autogenetic montmorillonite. Clay fractions with M/I ratio >1, δCe=0.86 to 1.5, ΣREE=200 to 350 μg/g, LREE/HREE ratio ≈6 and REE distribution patterns similar to that of China loess are identified as terrigenous clay fraction. The 143Nd/144Nd ratios or ɛNd values of clay fractions inherit the features of terrigenous sources of clay minerals. Clay fractions are divided into 4 types according to ɛNd values. Terrigenous clay minerals of type I with the ɛNd values of ™8 to ™6 originate mainly from North American fluvial deposits. Those of type II with the ε Nd values of ™9 to ™7 are mainly from the East Asia and North American fluvial deposits. Those of type III with ε Nd values of ™6 to ™3 could come from the central and eastern Pacific volcanic islands. Those of type IV with ε Nd values of ™13 to ™12 may be from East Asia eolian. The terrigenous and autogenetic mixed clay fractions show patchy distributions, indicating that there are volcanic or hot-spot activities in the eastern Pacific plate, while the terrigenous clay fractions cover a large part of the study area, proving that the terrigenous clay minerals are dominant in the eastern Pacific.</abstract><cop>Dordrecht</cop><pub>Springer Nature B.V</pub><doi>10.1360/03yd0276</doi><tpages>12</tpages></addata></record> |
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| subjects | Cerium Clay Clay minerals Fluvial deposits Hot spots Hot spots (geology) Illite Illites Loess Minerals Montmorillonite Montmorillonites Neodymium isotopes Pelagic sediments Plates Sediments Soils Volcanic islands |
| title | REE and ε Nd of clay fractions in sediments from the eastern Pacific Ocean: Evidence for clay sources |
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