Sökning: id:"swepub:oai:DiVA.org:uu-390050" > Timing and Pacing o...
Fältnamn | Indikatorer | Metadata |
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000 | 04538naa a2200433 4500 | |
001 | oai:DiVA.org:uu-390050 | |
003 | SwePub | |
008 | 190802s2019 | |||||||||||000 ||eng| | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-3900502 URI |
024 | 7 | a https://doi.org/10.1029/2018PA0035122 DOI |
040 | a (SwePub)uu | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Auer, Geraldu Japan Agcy Marine Earth Sci & Technol, Dept Biogeochem, Yokosuka, Kanagawa, Japan4 aut |
245 | 1 0 | a Timing and Pacing of Indonesian Throughflow Restriction and Its Connection to Late Pliocene Climate Shifts |
264 | 1 | b AMER GEOPHYSICAL UNION,c 2019 |
338 | a electronic2 rdacarrier | |
520 | a The Pliocene was characterized by a gradual shift of global climate toward cooler and drier conditions. This shift fundamentally reorganized Earth's climate from the Miocene state toward conditions similar to the present. During the Pliocene, the progressive restriction of the Indonesian Throughflow (ITF) is suggested to have enhanced this shift toward stronger meridional thermal gradients. Reduced ITF, caused by the northward movement of Australia and uplift of Indonesia, impeded global thermohaline circulation, also contributing to late Pliocene Northern Hemisphere cooling via atmospheric and oceanographic teleconnections. Here we present an orbitally tuned high-resolution sediment geochemistry, calcareous nannofossil, and X-ray fluorescence record between 3.65 and 2.97 Ma from the northwest shelf of Australia within the Leeuwin Current. International Ocean Discovery Program Site U1463 provides a record of local surface water conditions and Australian climate in relation to changing ITF connectivity. Modern analogue-based interpretations of nannofossil assemblages indicate that ITF configuration culminated similar to 3.54 Ma. A decrease in warm, oligotrophic taxa such as Umbilicosphaera sibogae, with a shift from Gephyrocapsa sp. to Reticulofenestra sp., and an increase of mesotrophic taxa (e.g., Umbilicosphaera jafari and Helicosphaera spp.) suggest that tropical Pacific ITF sources were replaced by cooler, fresher, northern Pacific waters. This initial tectonic reorganization enhanced the Indian Oceans sensitivity to orbitally forced cooling in the southern high latitudes culminating in the M2 glacial event (similar to 3.3 Ma). After 3.3 Ma the restructured ITF established the boundary conditions for the inception of the Sahul-Indian Ocean Bjerknes mechanism and increased the response to glacio-eustatic variability. | |
650 | 7 | a NATURVETENSKAPx Geovetenskap och miljövetenskapx Geologi0 (SwePub)105042 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Geology0 (SwePub)105042 hsv//eng |
700 | 1 | a De Vleeschouwer, Davidu Univ Bremen, MARUM Ctr Marine & Environm Sci, Bremen, Germany4 aut |
700 | 1 | a Smith, Rebecca A.u Univ Massachusetts, Dept Geosci, Amherst, MA 01003 USA4 aut |
700 | 1 | a Bogus, Karau Texas A&M Univ, Int Ocean Discovery Program, College Stn, TX USA;Univ Exeter, Camborne Sch Mines, Penryn, England4 aut |
700 | 1 | a Groeneveld, Jeroenu Univ Bremen, MARUM Ctr Marine & Environm Sci, Bremen, Germany4 aut |
700 | 1 | a Grunert, Patricku Univ Cologne, Inst Geol & Mineral, Cologne, Germany4 aut |
700 | 1 | a Castaneda, Isla S.u Univ Massachusetts, Dept Geosci, Amherst, MA 01003 USA4 aut |
700 | 1 | a Petrick, Benjaminu Max Planck Inst Chem, Mainz, Germany4 aut |
700 | 1 | a Christensen, Bethu Adelphi Univ, Environm Studies Program, Garden City, NY USA4 aut |
700 | 1 | a Fulthorpe, Craigu Univ Texas Austin, Inst Geophys, Austin, TX USA4 aut |
700 | 1 | a Gallagher, Stephen J.u Univ Melbourne, Sch Earth Sci, Melbourne, Vic, Australia4 aut |
700 | 1 | a Henderiks, Jorijntjeu Uppsala universitet,Paleobiologi4 aut0 (Swepub:uu)jorhe564 |
710 | 2 | a Japan Agcy Marine Earth Sci & Technol, Dept Biogeochem, Yokosuka, Kanagawa, Japanb Univ Bremen, MARUM Ctr Marine & Environm Sci, Bremen, Germany4 org |
773 | 0 | t Paleoceanography and Paleoclimatologyd : AMER GEOPHYSICAL UNIONg 34:4, s. 635-657q 34:4<635-657x 2572-4517x 2572-4525 |
856 | 4 | u https://doi.org/10.1029/2018PA003512y Fulltext |
856 | 4 | u https://uu.diva-portal.org/smash/get/diva2:1340215/FULLTEXT01.pdfx primaryx Raw objecty fulltext:print |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-390050 |
856 | 4 8 | u https://doi.org/10.1029/2018PA003512 |
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