An 80 kyr-long continuous speleothem record from Dim Cave, SW Turkey with paleoclimatic implications for the Eastern Mediterranean
Speleothem-based stable isotope records are valuable in sub-humid and semi-arid settings where many other terrestrial climate proxies are fragmentary. The Eastern Mediterranean is one such region. Here we present an 80-kyr-long precisely-dated (by U-series) and high-resolution oxygen (δ 18 O) and ca...
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| Veröffentlicht in: | Scientific reports 2015-09, Vol.5 (1), p.13560, Article 13560 |
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| creator | Ünal-İmer, Ezgi Shulmeister, James Zhao, Jian-Xin Tonguç Uysal, I. Feng, Yue-Xing Duc Nguyen, Ai Yüce, Galip |
| description | Speleothem-based stable isotope records are valuable in sub-humid and semi-arid settings where many other terrestrial climate proxies are fragmentary. The Eastern Mediterranean is one such region. Here we present an 80-kyr-long precisely-dated (by U-series) and high-resolution oxygen (δ
18
O) and carbon (δ
13
C) records from Dim Cave (~36°N) in SW Turkey. The glacial-interglacial δ
18
O variations in the Dim Cave speleothem are best explained in terms of changes in the trajectories of winter westerly air masses. These are along a northerly (European) track (isotopically less depleted) during the early last glaciation but are gradually depressed southward closer to the modern westerly track along the North African coast (more depleted) after c.50 kyr and remain in the southern track through the Last Glacial Maximum. The southward displacement of the westerly track reflects growth of the Fennoscandian ice sheet and its impact on westerly wind fields. Changes in δ
13
C are interpreted as reflecting soil organic matter composition and/or thickness. δ
13
C values are significantly more negative in interglacials reflecting active carbonic acid production in the soil and less negative in glacial times reflecting carbonate rock values. Several Heinrich events are recorded in the Dim record indicating intensification of westerly flow across this part of the EM. |
| doi_str_mv | 10.1038/srep13560 |
| format | Article |
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18
O) and carbon (δ
13
C) records from Dim Cave (~36°N) in SW Turkey. The glacial-interglacial δ
18
O variations in the Dim Cave speleothem are best explained in terms of changes in the trajectories of winter westerly air masses. These are along a northerly (European) track (isotopically less depleted) during the early last glaciation but are gradually depressed southward closer to the modern westerly track along the North African coast (more depleted) after c.50 kyr and remain in the southern track through the Last Glacial Maximum. The southward displacement of the westerly track reflects growth of the Fennoscandian ice sheet and its impact on westerly wind fields. Changes in δ
13
C are interpreted as reflecting soil organic matter composition and/or thickness. δ
13
C values are significantly more negative in interglacials reflecting active carbonic acid production in the soil and less negative in glacial times reflecting carbonate rock values. Several Heinrich events are recorded in the Dim record indicating intensification of westerly flow across this part of the EM.</description><identifier>ISSN: 2045-2322</identifier><identifier>EISSN: 2045-2322</identifier><identifier>DOI: 10.1038/srep13560</identifier><identifier>PMID: 26337921</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>704/106/413 ; 704/106/694/2739 ; Acid production ; Acidic soils ; Air masses ; Carbonate rocks ; Carbonic acid ; Glaciation ; Humanities and Social Sciences ; Ice ; Ice ages ; multidisciplinary ; Organic matter ; Organic soils ; Science ; Soil organic matter ; Stable isotopes</subject><ispartof>Scientific reports, 2015-09, Vol.5 (1), p.13560, Article 13560</ispartof><rights>The Author(s) 2015</rights><rights>Copyright Nature Publishing Group Sep 2015</rights><rights>Copyright © 2015, Macmillan Publishers Limited 2015 Macmillan Publishers Limited</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c438t-591e7641dbc422074b3f48d6c0f6191da426cb3f2e44bc1171b24ebdbeac682a3</citedby><cites>FETCH-LOGICAL-c438t-591e7641dbc422074b3f48d6c0f6191da426cb3f2e44bc1171b24ebdbeac682a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4559661/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4559661/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,860,881,27901,27902,41096,42165,51551,53766,53768</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26337921$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Ünal-İmer, Ezgi</creatorcontrib><creatorcontrib>Shulmeister, James</creatorcontrib><creatorcontrib>Zhao, Jian-Xin</creatorcontrib><creatorcontrib>Tonguç Uysal, I.</creatorcontrib><creatorcontrib>Feng, Yue-Xing</creatorcontrib><creatorcontrib>Duc Nguyen, Ai</creatorcontrib><creatorcontrib>Yüce, Galip</creatorcontrib><title>An 80 kyr-long continuous speleothem record from Dim Cave, SW Turkey with paleoclimatic implications for the Eastern Mediterranean</title><title>Scientific reports</title><addtitle>Sci Rep</addtitle><addtitle>Sci Rep</addtitle><description>Speleothem-based stable isotope records are valuable in sub-humid and semi-arid settings where many other terrestrial climate proxies are fragmentary. The Eastern Mediterranean is one such region. Here we present an 80-kyr-long precisely-dated (by U-series) and high-resolution oxygen (δ
18
O) and carbon (δ
13
C) records from Dim Cave (~36°N) in SW Turkey. The glacial-interglacial δ
18
O variations in the Dim Cave speleothem are best explained in terms of changes in the trajectories of winter westerly air masses. These are along a northerly (European) track (isotopically less depleted) during the early last glaciation but are gradually depressed southward closer to the modern westerly track along the North African coast (more depleted) after c.50 kyr and remain in the southern track through the Last Glacial Maximum. The southward displacement of the westerly track reflects growth of the Fennoscandian ice sheet and its impact on westerly wind fields. Changes in δ
13
C are interpreted as reflecting soil organic matter composition and/or thickness. δ
13
C values are significantly more negative in interglacials reflecting active carbonic acid production in the soil and less negative in glacial times reflecting carbonate rock values. Several Heinrich events are recorded in the Dim record indicating intensification of westerly flow across this part of the EM.</description><subject>704/106/413</subject><subject>704/106/694/2739</subject><subject>Acid production</subject><subject>Acidic soils</subject><subject>Air masses</subject><subject>Carbonate rocks</subject><subject>Carbonic acid</subject><subject>Glaciation</subject><subject>Humanities and Social Sciences</subject><subject>Ice</subject><subject>Ice ages</subject><subject>multidisciplinary</subject><subject>Organic matter</subject><subject>Organic soils</subject><subject>Science</subject><subject>Soil organic matter</subject><subject>Stable isotopes</subject><issn>2045-2322</issn><issn>2045-2322</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>BENPR</sourceid><recordid>eNplkcFO3DAQhi1UBIhy6AtUlnppEaG24zjxpRLaAkUC9VCqHi3HmewaEjvYCdXeOPTS1-yT1GhhtS2-eOT59M8__hF6Q8kxJXn1MQYYaF4IsoX2GOFFxnLGXm3Uu-ggxhuSTsEkp3IH7TKR56VkdA_9OnG4In8eft8uQ9Z5N8fGu9G6yU8RxwE68OMCehzA-NDgNvgef7Y9nul7OMLffuDrKdzCEv-04wIPOuGms70ercG2HzprUuldxK0POAnhUx1HCA5fQWNTEbQD7V6j7VZ3EQ6e7n30_ez0evYlu_x6fjE7ucwMz6sxKySFUnDa1IYzRkpe5y2vGmFIK6ikjeZMmPTGgPPaUFrSmnGomxq0ERXT-T76tNIdprqHxoAbg-7UEJLjsFReW_Vvx9mFmvt7xYtCCkGTwPsngeDvJoij6m000HVpjfRhipZElpRUkif03X_ojZ-CS-spWklZsoKxIlEfVpQJPqYk27UZStRjvGodb2Lfbrpfk89hJuBwBcTUcnMIGyNfqP0FYICxyw</recordid><startdate>20150904</startdate><enddate>20150904</enddate><creator>Ünal-İmer, Ezgi</creator><creator>Shulmeister, James</creator><creator>Zhao, Jian-Xin</creator><creator>Tonguç Uysal, I.</creator><creator>Feng, Yue-Xing</creator><creator>Duc Nguyen, Ai</creator><creator>Yüce, Galip</creator><general>Nature Publishing Group UK</general><general>Nature Publishing Group</general><scope>C6C</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>88I</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>M7P</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20150904</creationdate><title>An 80 kyr-long continuous speleothem record from Dim Cave, SW Turkey with paleoclimatic implications for the Eastern Mediterranean</title><author>Ünal-İmer, Ezgi ; Shulmeister, James ; Zhao, Jian-Xin ; Tonguç Uysal, I. ; Feng, Yue-Xing ; Duc Nguyen, Ai ; Yüce, Galip</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c438t-591e7641dbc422074b3f48d6c0f6191da426cb3f2e44bc1171b24ebdbeac682a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>704/106/413</topic><topic>704/106/694/2739</topic><topic>Acid production</topic><topic>Acidic soils</topic><topic>Air masses</topic><topic>Carbonate rocks</topic><topic>Carbonic acid</topic><topic>Glaciation</topic><topic>Humanities and Social Sciences</topic><topic>Ice</topic><topic>Ice ages</topic><topic>multidisciplinary</topic><topic>Organic matter</topic><topic>Organic soils</topic><topic>Science</topic><topic>Soil organic matter</topic><topic>Stable isotopes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ünal-İmer, Ezgi</creatorcontrib><creatorcontrib>Shulmeister, James</creatorcontrib><creatorcontrib>Zhao, Jian-Xin</creatorcontrib><creatorcontrib>Tonguç Uysal, I.</creatorcontrib><creatorcontrib>Feng, Yue-Xing</creatorcontrib><creatorcontrib>Duc Nguyen, Ai</creatorcontrib><creatorcontrib>Yüce, Galip</creatorcontrib><collection>Springer Nature OA Free Journals</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>ProQuest Health and Medical</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Biology Database (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Science Database (Alumni Edition)</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (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>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>ProQuest Biological Science Collection</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>ProQuest Science Journals</collection><collection>ProQuest Biological Science Journals</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>ProQuest Central China</collection><collection>ProQuest Central Basic</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Scientific reports</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ünal-İmer, Ezgi</au><au>Shulmeister, James</au><au>Zhao, Jian-Xin</au><au>Tonguç Uysal, I.</au><au>Feng, Yue-Xing</au><au>Duc Nguyen, Ai</au><au>Yüce, Galip</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>An 80 kyr-long continuous speleothem record from Dim Cave, SW Turkey with paleoclimatic implications for the Eastern Mediterranean</atitle><jtitle>Scientific reports</jtitle><stitle>Sci Rep</stitle><addtitle>Sci Rep</addtitle><date>2015-09-04</date><risdate>2015</risdate><volume>5</volume><issue>1</issue><spage>13560</spage><pages>13560-</pages><artnum>13560</artnum><issn>2045-2322</issn><eissn>2045-2322</eissn><abstract>Speleothem-based stable isotope records are valuable in sub-humid and semi-arid settings where many other terrestrial climate proxies are fragmentary. The Eastern Mediterranean is one such region. Here we present an 80-kyr-long precisely-dated (by U-series) and high-resolution oxygen (δ
18
O) and carbon (δ
13
C) records from Dim Cave (~36°N) in SW Turkey. The glacial-interglacial δ
18
O variations in the Dim Cave speleothem are best explained in terms of changes in the trajectories of winter westerly air masses. These are along a northerly (European) track (isotopically less depleted) during the early last glaciation but are gradually depressed southward closer to the modern westerly track along the North African coast (more depleted) after c.50 kyr and remain in the southern track through the Last Glacial Maximum. The southward displacement of the westerly track reflects growth of the Fennoscandian ice sheet and its impact on westerly wind fields. Changes in δ
13
C are interpreted as reflecting soil organic matter composition and/or thickness. δ
13
C values are significantly more negative in interglacials reflecting active carbonic acid production in the soil and less negative in glacial times reflecting carbonate rock values. Several Heinrich events are recorded in the Dim record indicating intensification of westerly flow across this part of the EM.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>26337921</pmid><doi>10.1038/srep13560</doi><oa>free_for_read</oa></addata></record> |
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| subjects | 704/106/413 704/106/694/2739 Acid production Acidic soils Air masses Carbonate rocks Carbonic acid Glaciation Humanities and Social Sciences Ice Ice ages multidisciplinary Organic matter Organic soils Science Soil organic matter Stable isotopes |
| title | An 80 kyr-long continuous speleothem record from Dim Cave, SW Turkey with paleoclimatic implications for the Eastern Mediterranean |
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