Weathering Intensity Response to Climate Change on Decadal Scales: A Record of Rb/Sr Ratios from Chaonaqiu Lake Sediments, Western Chinese Loess Plateau
The Rb/Sr ratio of lake sediments has been widely adopted as an indicator of weathering intensity in studies of past climate change, but the geochemical significance of this ratio varies with timescale. Here, we present Rb/Sr data for the past 300 years for sediments collected from Chaonaqiu Lake in...
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| Veröffentlicht in: | Water (Basel) 2023-05, Vol.15 (10), p.1890 |
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| creator | Liu, Lipeng Yu, Keke Li, Aizhen Zhang, Chao Wang, Le Liu, Xingxing Lan, Jianghu |
| description | The Rb/Sr ratio of lake sediments has been widely adopted as an indicator of weathering intensity in studies of past climate change, but the geochemical significance of this ratio varies with timescale. Here, we present Rb/Sr data for the past 300 years for sediments collected from Chaonaqiu Lake in the Liupan Mountains of the western Chinese Loess Plateau as a decadal-scale record of weathering intensity. To validate the application of this weathering proxy, we correlated the record with those of other major elements, rock-forming minerals, and paleoclimatic proxies. We found that Rb/Sr ratios are influenced mainly by Sr activity within the lake catchment (where Sr is likely sourced from albite). In addition, higher (lower) Rb/Sr ratios of bulk sediments from Chaonaqiu Lake are correlated with lower (higher) fractions of terrigenous detritus (SiO2, Ti, K2O, Al2O3, and Na2O). These indicate that the Rb/Sr ratios of bulk sediments in Chaonaqiu Lake are closely linked to terrigenous detritus input on decadal scales and also correlate well with TOC (a precipitation indicator) and other high-resolution paleoclimate records (e.g., tree rings and drought/flood index) in neighboring regions, with higher (lower) Rb/Sr ratios corresponding to more (less) precipitation. Lake bulk sediment Rb/Sr ratios are dominated by the input of terrigenous detritus over decadal timescales. Our data show that physical and chemical weathering in the Chaonaqiu Lake watershed have opposing influences on Rb/Sr ratios of bulk sediment, competing to dominate these ratios of lake sediments over different timescales, with ratios reflecting the relative importance of the two types of weathering. |
| doi_str_mv | 10.3390/w15101890 |
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Here, we present Rb/Sr data for the past 300 years for sediments collected from Chaonaqiu Lake in the Liupan Mountains of the western Chinese Loess Plateau as a decadal-scale record of weathering intensity. To validate the application of this weathering proxy, we correlated the record with those of other major elements, rock-forming minerals, and paleoclimatic proxies. We found that Rb/Sr ratios are influenced mainly by Sr activity within the lake catchment (where Sr is likely sourced from albite). In addition, higher (lower) Rb/Sr ratios of bulk sediments from Chaonaqiu Lake are correlated with lower (higher) fractions of terrigenous detritus (SiO2, Ti, K2O, Al2O3, and Na2O). These indicate that the Rb/Sr ratios of bulk sediments in Chaonaqiu Lake are closely linked to terrigenous detritus input on decadal scales and also correlate well with TOC (a precipitation indicator) and other high-resolution paleoclimate records (e.g., tree rings and drought/flood index) in neighboring regions, with higher (lower) Rb/Sr ratios corresponding to more (less) precipitation. Lake bulk sediment Rb/Sr ratios are dominated by the input of terrigenous detritus over decadal timescales. Our data show that physical and chemical weathering in the Chaonaqiu Lake watershed have opposing influences on Rb/Sr ratios of bulk sediment, competing to dominate these ratios of lake sediments over different timescales, with ratios reflecting the relative importance of the two types of weathering.</description><identifier>ISSN: 2073-4441</identifier><identifier>EISSN: 2073-4441</identifier><identifier>DOI: 10.3390/w15101890</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Aluminum oxide ; Chemical precipitation ; Chemical weathering ; China ; Climate change ; Correlation ; Correlation analysis ; Dendroclimatology ; Detritus ; Drought ; Fractions ; Global temperature changes ; Lake catchments ; Lake sediments ; Lakes ; Loess ; Minerals ; Mountains ; Paleoclimate ; paleoclimatology ; Precipitation ; Proxies ; Ratios ; Scientific imaging ; Sediments ; Silicon dioxide ; Terrigenous sediments ; Tree rings ; trees ; water ; watersheds ; Weathering ; Wind</subject><ispartof>Water (Basel), 2023-05, Vol.15 (10), p.1890</ispartof><rights>COPYRIGHT 2023 MDPI AG</rights><rights>2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c364t-87127bd2cf932f7056f6734660f575e35db144c21ee7634da1106981bfe81e653</citedby><cites>FETCH-LOGICAL-c364t-87127bd2cf932f7056f6734660f575e35db144c21ee7634da1106981bfe81e653</cites><orcidid>0000-0002-5618-2363</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Liu, Lipeng</creatorcontrib><creatorcontrib>Yu, Keke</creatorcontrib><creatorcontrib>Li, Aizhen</creatorcontrib><creatorcontrib>Zhang, Chao</creatorcontrib><creatorcontrib>Wang, Le</creatorcontrib><creatorcontrib>Liu, Xingxing</creatorcontrib><creatorcontrib>Lan, Jianghu</creatorcontrib><title>Weathering Intensity Response to Climate Change on Decadal Scales: A Record of Rb/Sr Ratios from Chaonaqiu Lake Sediments, Western Chinese Loess Plateau</title><title>Water (Basel)</title><description>The Rb/Sr ratio of lake sediments has been widely adopted as an indicator of weathering intensity in studies of past climate change, but the geochemical significance of this ratio varies with timescale. Here, we present Rb/Sr data for the past 300 years for sediments collected from Chaonaqiu Lake in the Liupan Mountains of the western Chinese Loess Plateau as a decadal-scale record of weathering intensity. To validate the application of this weathering proxy, we correlated the record with those of other major elements, rock-forming minerals, and paleoclimatic proxies. We found that Rb/Sr ratios are influenced mainly by Sr activity within the lake catchment (where Sr is likely sourced from albite). In addition, higher (lower) Rb/Sr ratios of bulk sediments from Chaonaqiu Lake are correlated with lower (higher) fractions of terrigenous detritus (SiO2, Ti, K2O, Al2O3, and Na2O). These indicate that the Rb/Sr ratios of bulk sediments in Chaonaqiu Lake are closely linked to terrigenous detritus input on decadal scales and also correlate well with TOC (a precipitation indicator) and other high-resolution paleoclimate records (e.g., tree rings and drought/flood index) in neighboring regions, with higher (lower) Rb/Sr ratios corresponding to more (less) precipitation. Lake bulk sediment Rb/Sr ratios are dominated by the input of terrigenous detritus over decadal timescales. Our data show that physical and chemical weathering in the Chaonaqiu Lake watershed have opposing influences on Rb/Sr ratios of bulk sediment, competing to dominate these ratios of lake sediments over different timescales, with ratios reflecting the relative importance of the two types of weathering.</description><subject>Aluminum oxide</subject><subject>Chemical precipitation</subject><subject>Chemical weathering</subject><subject>China</subject><subject>Climate change</subject><subject>Correlation</subject><subject>Correlation analysis</subject><subject>Dendroclimatology</subject><subject>Detritus</subject><subject>Drought</subject><subject>Fractions</subject><subject>Global temperature changes</subject><subject>Lake catchments</subject><subject>Lake sediments</subject><subject>Lakes</subject><subject>Loess</subject><subject>Minerals</subject><subject>Mountains</subject><subject>Paleoclimate</subject><subject>paleoclimatology</subject><subject>Precipitation</subject><subject>Proxies</subject><subject>Ratios</subject><subject>Scientific imaging</subject><subject>Sediments</subject><subject>Silicon dioxide</subject><subject>Terrigenous sediments</subject><subject>Tree rings</subject><subject>trees</subject><subject>water</subject><subject>watersheds</subject><subject>Weathering</subject><subject>Wind</subject><issn>2073-4441</issn><issn>2073-4441</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNpdkc1qHDEMx4fSQEOaQ99A0EsL3cQef417W7ZfgYWE3ZQcB69H3jidsTe2h5I36ePWYUsplQ4S4veXhNQ0byi5YEyTy59UUEI7TV40py1RbME5py__yV815zk_kGpcd50gp82vOzTlHpMPe7gKBUP25Qk2mA8xZIQSYTX6yRSE1b0Je4QY4BNaM5gRttaMmD_CsvI2pgGig83ucptgY4qPGVyK07MuBvPoZ1ibHwhbHPyEoeQPcIe5YAqV8AHrsHXEnOFmrNPM_Lo5cWbMeP4nnjXfv3y-XX1brK-_Xq2W64VlkpdFp2irdkNrnWatU0RIJxXjUhInlEAmhh3l3LYUUUnGB0MpkbqjO4cdRSnYWfPu2PeQ4uNcN-onny2OowkY59wzKhjVndCqom__Qx_inELdrm87qrnmhMhKXRypfb1O74OLJRlbfcDJ2xjQ-VpfKtHy2lPrKnh_FNgUc07o-kOqJ09PPSX981_7v39lvwFY2ZMM</recordid><startdate>20230516</startdate><enddate>20230516</enddate><creator>Liu, Lipeng</creator><creator>Yu, Keke</creator><creator>Li, Aizhen</creator><creator>Zhang, Chao</creator><creator>Wang, Le</creator><creator>Liu, Xingxing</creator><creator>Lan, Jianghu</creator><general>MDPI AG</general><scope>AAYXX</scope><scope>CITATION</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>7S9</scope><scope>L.6</scope><orcidid>https://orcid.org/0000-0002-5618-2363</orcidid></search><sort><creationdate>20230516</creationdate><title>Weathering Intensity Response to Climate Change on Decadal Scales: A Record of Rb/Sr Ratios from Chaonaqiu Lake Sediments, Western Chinese Loess Plateau</title><author>Liu, Lipeng ; Yu, Keke ; Li, Aizhen ; Zhang, Chao ; Wang, Le ; Liu, Xingxing ; Lan, Jianghu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c364t-87127bd2cf932f7056f6734660f575e35db144c21ee7634da1106981bfe81e653</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Aluminum oxide</topic><topic>Chemical precipitation</topic><topic>Chemical weathering</topic><topic>China</topic><topic>Climate change</topic><topic>Correlation</topic><topic>Correlation analysis</topic><topic>Dendroclimatology</topic><topic>Detritus</topic><topic>Drought</topic><topic>Fractions</topic><topic>Global temperature changes</topic><topic>Lake catchments</topic><topic>Lake sediments</topic><topic>Lakes</topic><topic>Loess</topic><topic>Minerals</topic><topic>Mountains</topic><topic>Paleoclimate</topic><topic>paleoclimatology</topic><topic>Precipitation</topic><topic>Proxies</topic><topic>Ratios</topic><topic>Scientific imaging</topic><topic>Sediments</topic><topic>Silicon dioxide</topic><topic>Terrigenous sediments</topic><topic>Tree rings</topic><topic>trees</topic><topic>water</topic><topic>watersheds</topic><topic>Weathering</topic><topic>Wind</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liu, Lipeng</creatorcontrib><creatorcontrib>Yu, Keke</creatorcontrib><creatorcontrib>Li, Aizhen</creatorcontrib><creatorcontrib>Zhang, Chao</creatorcontrib><creatorcontrib>Wang, Le</creatorcontrib><creatorcontrib>Liu, Xingxing</creatorcontrib><creatorcontrib>Lan, Jianghu</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Publicly Available Content 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>AGRICOLA</collection><collection>AGRICOLA - Academic</collection><jtitle>Water (Basel)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liu, Lipeng</au><au>Yu, Keke</au><au>Li, Aizhen</au><au>Zhang, Chao</au><au>Wang, Le</au><au>Liu, Xingxing</au><au>Lan, Jianghu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Weathering Intensity Response to Climate Change on Decadal Scales: A Record of Rb/Sr Ratios from Chaonaqiu Lake Sediments, Western Chinese Loess Plateau</atitle><jtitle>Water (Basel)</jtitle><date>2023-05-16</date><risdate>2023</risdate><volume>15</volume><issue>10</issue><spage>1890</spage><pages>1890-</pages><issn>2073-4441</issn><eissn>2073-4441</eissn><abstract>The Rb/Sr ratio of lake sediments has been widely adopted as an indicator of weathering intensity in studies of past climate change, but the geochemical significance of this ratio varies with timescale. Here, we present Rb/Sr data for the past 300 years for sediments collected from Chaonaqiu Lake in the Liupan Mountains of the western Chinese Loess Plateau as a decadal-scale record of weathering intensity. To validate the application of this weathering proxy, we correlated the record with those of other major elements, rock-forming minerals, and paleoclimatic proxies. We found that Rb/Sr ratios are influenced mainly by Sr activity within the lake catchment (where Sr is likely sourced from albite). In addition, higher (lower) Rb/Sr ratios of bulk sediments from Chaonaqiu Lake are correlated with lower (higher) fractions of terrigenous detritus (SiO2, Ti, K2O, Al2O3, and Na2O). These indicate that the Rb/Sr ratios of bulk sediments in Chaonaqiu Lake are closely linked to terrigenous detritus input on decadal scales and also correlate well with TOC (a precipitation indicator) and other high-resolution paleoclimate records (e.g., tree rings and drought/flood index) in neighboring regions, with higher (lower) Rb/Sr ratios corresponding to more (less) precipitation. Lake bulk sediment Rb/Sr ratios are dominated by the input of terrigenous detritus over decadal timescales. Our data show that physical and chemical weathering in the Chaonaqiu Lake watershed have opposing influences on Rb/Sr ratios of bulk sediment, competing to dominate these ratios of lake sediments over different timescales, with ratios reflecting the relative importance of the two types of weathering.</abstract><cop>Basel</cop><pub>MDPI AG</pub><doi>10.3390/w15101890</doi><orcidid>https://orcid.org/0000-0002-5618-2363</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Aluminum oxide Chemical precipitation Chemical weathering China Climate change Correlation Correlation analysis Dendroclimatology Detritus Drought Fractions Global temperature changes Lake catchments Lake sediments Lakes Loess Minerals Mountains Paleoclimate paleoclimatology Precipitation Proxies Ratios Scientific imaging Sediments Silicon dioxide Terrigenous sediments Tree rings trees water watersheds Weathering Wind |
| title | Weathering Intensity Response to Climate Change on Decadal Scales: A Record of Rb/Sr Ratios from Chaonaqiu Lake Sediments, Western Chinese Loess Plateau |
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