Late Miocene-early Pleistocene paleoclimate history of the Chinese Loess Plateau revealed by remanence unmixing
Previous studies show that the Quaternary loess sequence and the late Miocene‐Pliocene red clay sequence on the Chinese Loess Plateau (CLP) share similar magnetic properties despite their being deposited under different climate conditions. To solve this paradox, we apply a novel remanence unmixing t...
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| Veröffentlicht in: | Geophysical research letters 2014-03, Vol.41 (6), p.2163-2168 |
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| container_title | Geophysical research letters |
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| creator | Nie, Junsheng Zhang, Rui Necula, Cristian Heslop, David Liu, Qingsong Gong, Lisha Banerjee, Subir |
| description | Previous studies show that the Quaternary loess sequence and the late Miocene‐Pliocene red clay sequence on the Chinese Loess Plateau (CLP) share similar magnetic properties despite their being deposited under different climate conditions. To solve this paradox, we apply a novel remanence unmixing technique and demonstrate that loess and red clay on the central CLP contain a similar low‐coercivity pedogenic component, but their high‐coercivity components differ dramatically, reflecting different oxidation and temperature conditions. We infer that temperatures on the Chinese Loess Plateau cooled from the late Miocene to the Quaternary, in a manner similar to sea surface temperature records for the same time interval. This coherency between marine and terrestrial records argues for a CO2 forcing on long‐term paleoclimatic variations.
Key Points
Backfield remanence data of Chinese loess and red clay consist of two components
Loess and red clay have similar pedogenic but different detrital components
The Loess Plateau experienced a cooling trend from the late Miocene to the Quaternary |
| doi_str_mv | 10.1002/2014GL059379 |
| format | Article |
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Key Points
Backfield remanence data of Chinese loess and red clay consist of two components
Loess and red clay have similar pedogenic but different detrital components
The Loess Plateau experienced a cooling trend from the late Miocene to the Quaternary</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1002/2014GL059379</identifier><language>eng</language><publisher>Washington: Blackwell Publishing Ltd</publisher><subject>Carbon dioxide ; Clay ; Clay (material) ; Climate ; Climate change ; Climatic conditions ; Deposition ; environmental magnetism ; Geochemistry ; Loess ; Magnetic properties ; Miocene ; Paleoclimate ; Paleoclimate science ; Pleistocene ; Pliocene ; Quaternary ; red clay ; Remanence ; Sea surface temperature</subject><ispartof>Geophysical research letters, 2014-03, Vol.41 (6), p.2163-2168</ispartof><rights>2014. American Geophysical Union. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a4674-4c66b4723867535e49caba82663135ad033e00879fd363984e7ecea8d169c1b23</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2F2014GL059379$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2F2014GL059379$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,1433,11514,27924,27925,45574,45575,46409,46468,46833,46892</link.rule.ids></links><search><creatorcontrib>Nie, Junsheng</creatorcontrib><creatorcontrib>Zhang, Rui</creatorcontrib><creatorcontrib>Necula, Cristian</creatorcontrib><creatorcontrib>Heslop, David</creatorcontrib><creatorcontrib>Liu, Qingsong</creatorcontrib><creatorcontrib>Gong, Lisha</creatorcontrib><creatorcontrib>Banerjee, Subir</creatorcontrib><title>Late Miocene-early Pleistocene paleoclimate history of the Chinese Loess Plateau revealed by remanence unmixing</title><title>Geophysical research letters</title><addtitle>Geophys. Res. Lett</addtitle><description>Previous studies show that the Quaternary loess sequence and the late Miocene‐Pliocene red clay sequence on the Chinese Loess Plateau (CLP) share similar magnetic properties despite their being deposited under different climate conditions. To solve this paradox, we apply a novel remanence unmixing technique and demonstrate that loess and red clay on the central CLP contain a similar low‐coercivity pedogenic component, but their high‐coercivity components differ dramatically, reflecting different oxidation and temperature conditions. We infer that temperatures on the Chinese Loess Plateau cooled from the late Miocene to the Quaternary, in a manner similar to sea surface temperature records for the same time interval. This coherency between marine and terrestrial records argues for a CO2 forcing on long‐term paleoclimatic variations.
Key Points
Backfield remanence data of Chinese loess and red clay consist of two components
Loess and red clay have similar pedogenic but different detrital components
The Loess Plateau experienced a cooling trend from the late Miocene to the Quaternary</description><subject>Carbon dioxide</subject><subject>Clay</subject><subject>Clay (material)</subject><subject>Climate</subject><subject>Climate change</subject><subject>Climatic conditions</subject><subject>Deposition</subject><subject>environmental magnetism</subject><subject>Geochemistry</subject><subject>Loess</subject><subject>Magnetic properties</subject><subject>Miocene</subject><subject>Paleoclimate</subject><subject>Paleoclimate science</subject><subject>Pleistocene</subject><subject>Pliocene</subject><subject>Quaternary</subject><subject>red clay</subject><subject>Remanence</subject><subject>Sea surface temperature</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNpdkE1Lw0AQhhdRsFZv_oAFL16is9_ZoxStYtQiSo_LNp3aaJrUbKPNv3drRcTTDsPzzM68hBwzOGMA_JwDk8MMlBXG7pAes1ImKYDZJT0AG2tu9D45COEVAAQI1iN15ldI74o6xwoT9E3Z0VGJRVh9d-jSl1jnZbHYYPNNu-loPaOrOdLBvKgwIM1qDCFaEfEtbfADozSlky7WC19hlSNtq0WxLqqXQ7I382XAo5-3T56vLp8G10n2MLwZXGSJl9rIROZaT6ThItVGCYXS5n7iU661YEL5KQiBAKmxs6nQwqYSDebo0ynTNmcTLvrkdDt32dTvLYaVWxQhx7KM-9RtcExxaxUHUBE9-Ye-1m1Txe0c05KDBp2KSPEt9VmU2LllEyNpOsfAbaJ3f6N3w8dMxQ9klJKtFIPD9a_kmzenjTDKje-HTo2sGMcT3K34AmijhmE</recordid><startdate>20140328</startdate><enddate>20140328</enddate><creator>Nie, Junsheng</creator><creator>Zhang, Rui</creator><creator>Necula, Cristian</creator><creator>Heslop, David</creator><creator>Liu, Qingsong</creator><creator>Gong, Lisha</creator><creator>Banerjee, Subir</creator><general>Blackwell Publishing Ltd</general><general>John Wiley & Sons, Inc</general><scope>BSCLL</scope><scope>7TG</scope><scope>7TN</scope><scope>8FD</scope><scope>F1W</scope><scope>FR3</scope><scope>H8D</scope><scope>H96</scope><scope>KL.</scope><scope>KR7</scope><scope>L.G</scope><scope>L7M</scope><scope>7SM</scope></search><sort><creationdate>20140328</creationdate><title>Late Miocene-early Pleistocene paleoclimate history of the Chinese Loess Plateau revealed by remanence unmixing</title><author>Nie, Junsheng ; Zhang, Rui ; Necula, Cristian ; Heslop, David ; Liu, Qingsong ; Gong, Lisha ; Banerjee, Subir</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a4674-4c66b4723867535e49caba82663135ad033e00879fd363984e7ecea8d169c1b23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Carbon dioxide</topic><topic>Clay</topic><topic>Clay (material)</topic><topic>Climate</topic><topic>Climate change</topic><topic>Climatic conditions</topic><topic>Deposition</topic><topic>environmental magnetism</topic><topic>Geochemistry</topic><topic>Loess</topic><topic>Magnetic properties</topic><topic>Miocene</topic><topic>Paleoclimate</topic><topic>Paleoclimate science</topic><topic>Pleistocene</topic><topic>Pliocene</topic><topic>Quaternary</topic><topic>red clay</topic><topic>Remanence</topic><topic>Sea surface temperature</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nie, Junsheng</creatorcontrib><creatorcontrib>Zhang, Rui</creatorcontrib><creatorcontrib>Necula, Cristian</creatorcontrib><creatorcontrib>Heslop, David</creatorcontrib><creatorcontrib>Liu, Qingsong</creatorcontrib><creatorcontrib>Gong, Lisha</creatorcontrib><creatorcontrib>Banerjee, Subir</creatorcontrib><collection>Istex</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Technology Research Database</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Earthquake Engineering Abstracts</collection><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nie, Junsheng</au><au>Zhang, Rui</au><au>Necula, Cristian</au><au>Heslop, David</au><au>Liu, Qingsong</au><au>Gong, Lisha</au><au>Banerjee, Subir</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Late Miocene-early Pleistocene paleoclimate history of the Chinese Loess Plateau revealed by remanence unmixing</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2014-03-28</date><risdate>2014</risdate><volume>41</volume><issue>6</issue><spage>2163</spage><epage>2168</epage><pages>2163-2168</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><abstract>Previous studies show that the Quaternary loess sequence and the late Miocene‐Pliocene red clay sequence on the Chinese Loess Plateau (CLP) share similar magnetic properties despite their being deposited under different climate conditions. To solve this paradox, we apply a novel remanence unmixing technique and demonstrate that loess and red clay on the central CLP contain a similar low‐coercivity pedogenic component, but their high‐coercivity components differ dramatically, reflecting different oxidation and temperature conditions. We infer that temperatures on the Chinese Loess Plateau cooled from the late Miocene to the Quaternary, in a manner similar to sea surface temperature records for the same time interval. This coherency between marine and terrestrial records argues for a CO2 forcing on long‐term paleoclimatic variations.
Key Points
Backfield remanence data of Chinese loess and red clay consist of two components
Loess and red clay have similar pedogenic but different detrital components
The Loess Plateau experienced a cooling trend from the late Miocene to the Quaternary</abstract><cop>Washington</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/2014GL059379</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Carbon dioxide Clay Clay (material) Climate Climate change Climatic conditions Deposition environmental magnetism Geochemistry Loess Magnetic properties Miocene Paleoclimate Paleoclimate science Pleistocene Pliocene Quaternary red clay Remanence Sea surface temperature |
| title | Late Miocene-early Pleistocene paleoclimate history of the Chinese Loess Plateau revealed by remanence unmixing |
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