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Sökning: WFRF:(Andrén Thomas) > (2015-2019) > IODP expedition 347 :

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FältnamnIndikatorerMetadata
00004921naa a2200553 4500
001oai:DiVA.org:sh-28908
003SwePub
008151217s2015 | |||||||||||000 ||eng|
009oai:DiVA.org:uu-270195
024a https://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-289082 URI
024a https://doi.org/10.5194/sd-20-1-20152 DOI
024a https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-2701952 URI
040 a (SwePub)shd (SwePub)uu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
100a Andrén, Thomas,d 1954-u Södertörns högskola,Miljövetenskap4 aut0 (Swepub:sh)shtsan06
2451 0a IODP expedition 347 :b Baltic Sea basin paleoenvironment and biosphere
264 c 2015-12-17
264 1b Copernicus GmbH,c 2015
338 a electronic2 rdacarrier
500 a Ian Snowball ingår i gruppen the IODP expedition 347 scientific party
520 a The Integrated Ocean Drilling Program (IODP) expedition 347 cored sediments from different settings of the Baltic Sea covering the last glacial–interglacial cycle. The main aim was to study the geological development of the Baltic Sea in relation to the extreme climate variability of the region with changing ice cover and major shifts in temperature, salinity, and biological communities. Using the Greatship Manisha as a European Consortium for Ocean Research Drilling (ECORD) mission-specific platform, we recovered 1.6 km of core from nine sites of which four were additionally cored for microbiology. The sites covered the gateway to the North Sea and Atlantic Ocean, several sub-basins in the southern Baltic Sea, a deep basin in the central Baltic Sea, and a river estuary in the north.The waxing and waning of the Scandinavian ice sheet has profoundly affected the Baltic Sea sediments. During theWeichselian, progressing glaciers reshaped the submarine landscape and displaced sedimentary deposits from earlier Quaternary time. As the glaciers retreated they left a complex pattern of till, sand, and lacustrine clay, which in the basins has since been covered by a thick deposit of Holocene, organic-rich clay. Due to the stratified water column of the brackish Baltic Sea and the recurrent and widespread anoxia, the deeper basins harbor laminated sediments that provide a unique opportunity for high-resolution chronological studies.The Baltic Sea is a eutrophic intra-continental sea that is strongly impacted by terrestrial runoff and nutrient fluxes. The Holocene deposits are recorded today to be up to 50m deep and geochemically affected by diagenetic alterations driven by organic matter degradation. Many of the cored sequences were highly supersaturated with respect to methane, which caused strong degassing upon core recovery. The depth distributions of conservative sea water ions still reflected the transition at the end of the last glaciation from fresh-water clays to Holocene brackish mud. High-resolution sampling and analyses of interstitial water chemistry revealed the intensive mineralization and zonation of the predominant biogeochemical processes. Quantification of microbial cells in the sediments yielded some of the highest cell densities yet recorded by scientific drilling.
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Geologi0 (SwePub)105042 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Geology0 (SwePub)105042 hsv//eng
653 a Baltic Sea
653 a paleoenvironment
653 a IODP
653 a ECORD
653 a Environmental Studies
653 a Miljövetenskapliga studier
653 a Östersjö- och Östeuropaforskning
653 a Baltic and East European studies
653 a Natural Resources and Sustainable Development
700a Jørgensen, Bo Barker4 aut
700a Cotterill, Carol4 aut
700a Green, Sophie4 aut
700a Andrén, Elinoru Södertörns högskola,Miljövetenskap0 (Swepub:sh)sheran04
700a Snowball, Ian,d 1963-u Uppsala universitet,Naturresurser och hållbar utveckling,the IODP expedition 347 scientific party4 ctb0 (Swepub:uu)iansn468
710a Södertörns högskolab Miljövetenskap4 org
773t Scientific Drillingd : Copernicus GmbHg 20, s. 1-12q 20<1-12x 1816-8957x 1816-3459
856u https://doi.org/10.5194/sd-20-1-2015y Fulltext
856u https://sh.diva-portal.org/smash/get/diva2:884853/FULLTEXT01.pdfx primaryx Raw objecty fulltext:print
856u https://www.sci-dril.net/20/1/2015/sd-20-1-2015.pdf
856u https://uu.diva-portal.org/smash/get/diva2:886316/FULLTEXT01.pdfx primaryx Raw objecty fulltext:print
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-28908
8564 8u https://doi.org/10.5194/sd-20-1-2015
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-270195

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