Emma Ownsworth, Matthias Moros, Jeremy Lloyd, Ole Bennike, Jørn Bo Jensen, Thomas Blanz, David Selby
{"title":"斯卡格拉克海峡从大冰期到全新世中期的多代理古环境重建","authors":"Emma Ownsworth, Matthias Moros, Jeremy Lloyd, Ole Bennike, Jørn Bo Jensen, Thomas Blanz, David Selby","doi":"10.1111/bor.12652","DOIUrl":null,"url":null,"abstract":"<p>This study uses a multiproxy approach including the first use of <sup>187</sup>Os/<sup>188</sup>Os, %C<sub>37:4</sub> biomarkers, carbonate content, sedimentological grain size, geochemical X-ray fluorescence and microfossil benthic foraminifera species combined with radiocarbon dating, measured on six cores from across the Skagerrak, in order to study the Lateglacial to Middle Holocene history of the area. A new chronostratigraphic framework is developed based on the appearance of specific benthic foraminifera species along with changes in carbonate/X-ray fluorescence and grain size data. This allowed the correlation of cores based on a series of radiocarbon dated tie points. Analysing the cores together reveals several events recorded in the Skagerrak including: (i) an increased freshwater input (bracketed between 13.3 and 11.3 cal. ka BP) signified by radiogenic <sup>187</sup>Os/<sup>188</sup>Os values, high %C<sub>37:4</sub> values and an increase in sand content; (ii) the Glomma drainage event, signified by a sudden appearance of <i>Valvulineria</i> as well as higher %C<sub>37:4</sub>; and (iii) the opening of the Danish Straits and English Channel leading to the development of modern-day conditions and circulation patterns in the Skagerrak, signified by the appearance of <i>Hyalinea balthica</i> and a fall in %C<sub>37:4</sub>.</p>","PeriodicalId":9184,"journal":{"name":"Boreas","volume":"53 3","pages":"360-375"},"PeriodicalIF":2.4000,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/bor.12652","citationCount":"0","resultStr":"{\"title\":\"Multi-proxy palaeoenvironmental reconstruction of the Skagerrak from the Lateglacial to Middle Holocene\",\"authors\":\"Emma Ownsworth, Matthias Moros, Jeremy Lloyd, Ole Bennike, Jørn Bo Jensen, Thomas Blanz, David Selby\",\"doi\":\"10.1111/bor.12652\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>This study uses a multiproxy approach including the first use of <sup>187</sup>Os/<sup>188</sup>Os, %C<sub>37:4</sub> biomarkers, carbonate content, sedimentological grain size, geochemical X-ray fluorescence and microfossil benthic foraminifera species combined with radiocarbon dating, measured on six cores from across the Skagerrak, in order to study the Lateglacial to Middle Holocene history of the area. A new chronostratigraphic framework is developed based on the appearance of specific benthic foraminifera species along with changes in carbonate/X-ray fluorescence and grain size data. This allowed the correlation of cores based on a series of radiocarbon dated tie points. Analysing the cores together reveals several events recorded in the Skagerrak including: (i) an increased freshwater input (bracketed between 13.3 and 11.3 cal. ka BP) signified by radiogenic <sup>187</sup>Os/<sup>188</sup>Os values, high %C<sub>37:4</sub> values and an increase in sand content; (ii) the Glomma drainage event, signified by a sudden appearance of <i>Valvulineria</i> as well as higher %C<sub>37:4</sub>; and (iii) the opening of the Danish Straits and English Channel leading to the development of modern-day conditions and circulation patterns in the Skagerrak, signified by the appearance of <i>Hyalinea balthica</i> and a fall in %C<sub>37:4</sub>.</p>\",\"PeriodicalId\":9184,\"journal\":{\"name\":\"Boreas\",\"volume\":\"53 3\",\"pages\":\"360-375\"},\"PeriodicalIF\":2.4000,\"publicationDate\":\"2024-02-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1111/bor.12652\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Boreas\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1111/bor.12652\",\"RegionNum\":3,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"GEOGRAPHY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Boreas","FirstCategoryId":"89","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/bor.12652","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"GEOGRAPHY, PHYSICAL","Score":null,"Total":0}
Multi-proxy palaeoenvironmental reconstruction of the Skagerrak from the Lateglacial to Middle Holocene
This study uses a multiproxy approach including the first use of 187Os/188Os, %C37:4 biomarkers, carbonate content, sedimentological grain size, geochemical X-ray fluorescence and microfossil benthic foraminifera species combined with radiocarbon dating, measured on six cores from across the Skagerrak, in order to study the Lateglacial to Middle Holocene history of the area. A new chronostratigraphic framework is developed based on the appearance of specific benthic foraminifera species along with changes in carbonate/X-ray fluorescence and grain size data. This allowed the correlation of cores based on a series of radiocarbon dated tie points. Analysing the cores together reveals several events recorded in the Skagerrak including: (i) an increased freshwater input (bracketed between 13.3 and 11.3 cal. ka BP) signified by radiogenic 187Os/188Os values, high %C37:4 values and an increase in sand content; (ii) the Glomma drainage event, signified by a sudden appearance of Valvulineria as well as higher %C37:4; and (iii) the opening of the Danish Straits and English Channel leading to the development of modern-day conditions and circulation patterns in the Skagerrak, signified by the appearance of Hyalinea balthica and a fall in %C37:4.
期刊介绍:
Boreas has been published since 1972. Articles of wide international interest from all branches of Quaternary research are published. Biological as well as non-biological aspects of the Quaternary environment, in both glaciated and non-glaciated areas, are dealt with: Climate, shore displacement, glacial features, landforms, sediments, organisms and their habitat, and stratigraphical and chronological relationships.
Anticipated international interest, at least within a continent or a considerable part of it, is a main criterion for the acceptance of papers. Besides articles, short items like discussion contributions and book reviews are published.