Item talk:Q305693

{

 "USGS Publications Warehouse": {
   "@context": "https://schema.org",
   "@type": "Article",
   "additionalType": "Journal Article",
   "name": "North Atlantic midlatitude surface-circulation changes through the Plio-Pleistocene intensification of northern hemisphere glaciation",
   "identifier": [
     {
       "@type": "PropertyValue",
       "propertyID": "USGS Publications Warehouse IndexID",
       "value": "70201153",
       "url": "https://pubs.usgs.gov/publication/70201153"
     },
     {
       "@type": "PropertyValue",
       "propertyID": "USGS Publications Warehouse Internal ID",
       "value": 70201153
     },
     {
       "@type": "PropertyValue",
       "propertyID": "DOI",
       "value": "10.1029/2018PA003412",
       "url": "https://doi.org/10.1029/2018PA003412"
     }
   ],
   "journal": {
     "@type": "Periodical",
     "name": "Paleoceanography and Paleoclimatology",
     "volumeNumber": "33",
     "issueNumber": "11"
   },
   "inLanguage": "en",
   "isPartOf": [
     {
       "@type": "CreativeWorkSeries",
       "name": "Paleoceanography and Paleoclimatology"
     }
   ],
   "datePublished": "2018",
   "dateModified": "2019-01-28",
   "abstract": "The North Atlantic Current (NAC) transports warm salty water to high northern latitudes, with important repercussions for ocean circulation and global climate. A southward displacement of the NAC and Subarctic Front, which separate subpolar and subtropical water masses, is widely suggested for the Last Glacial Maximum (LGM) and may have acted as a positive feedback in glacial expansion at this time. However, the role of the NAC during the intensification of Northern Hemisphere glaciation (iNHG) at ~3.5 to 2.5\u00a0Ma is less clear. Here we present new records from Integrated Ocean Drilling Program Site U1313 (41\u00b0N) spanning ~2.8\u20132.4\u00a0Ma to trace the influence of Subarctic Front waters above this mid\u2010latitude site. We reconstruct surface and permanent pycnocline temperatures and seawater \u03b418O using paired Mg/Ca\u2010\u03b418O measurements on the planktic foraminifers\u00a0Globigerinoides ruber\u00a0and\u00a0Globorotalia crassaformis\u00a0and determine abundances of the subpolar foraminifer\u00a0Neogloboquadrina atlantica. We find that the first significant glacial incursions of Subarctic Front surface waters above Site U1313 did not occur until ~2.6\u00a0Ma. At no time during our study interval was (sub)surface reorganization in the midlatitude North Atlantic analogous to the LGM. Our findings suggest that LGM\u2010like processes\u00a0sensu stricto\u00a0cannot be invoked to explain interglacial\u2010glacial cycle amplification during iNHG. They also imply that increased glacial productivity at Site U1313 during iNHG was not only driven by southward deflections of the Subarctic Front. We suggest that nutrient injection from cold\u2010core eddies and enhanced glacial dust delivery may have played additional roles in increasing export productivity in the midlatitude North Atlantic from 2.7\u00a0Ma.",
   "description": "20 p.",
   "publisher": {
     "@type": "Organization",
     "name": "American Geophysical Union"
   },
   "author": [
     {
       "@type": "Person",
       "name": "Robinson, Marci M. mmrobinson@usgs.gov",
       "givenName": "Marci M.",
       "familyName": "Robinson",
       "email": "mmrobinson@usgs.gov",
       "identifier": {
         "@type": "PropertyValue",
         "propertyID": "ORCID",
         "value": "0000-0002-9200-4097",
         "url": "https://orcid.org/0000-0002-9200-4097"
       },
       "affiliation": [
         {
           "@type": "Organization",
           "name": "Florence Bascom Geoscience Center",
           "url": "https://www.usgs.gov/centers/florence-bascom-geoscience-center"
         },
         {
           "@type": "Organization",
           "name": "Eastern Geology and Paleoclimate Science Center",
           "url": "https://www.usgs.gov/centers/florence-bascom-geoscience-center"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Bolton, Clara T.",
       "givenName": "Clara T.",
       "familyName": "Bolton"
     },
     {
       "@type": "Person",
       "name": "Bailey, Ian",
       "givenName": "Ian",
       "familyName": "Bailey",
       "affiliation": [
         {
           "@type": "Organization",
           "name": "University of Exeter, UK"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Friedrich, Oliver",
       "givenName": "Oliver",
       "familyName": "Friedrich",
       "affiliation": [
         {
           "@type": "Organization",
           "name": "Heidelberg University, Germany"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "de Garidel\u2010Thoron, Thibault",
       "givenName": "Thibault",
       "familyName": "de Garidel\u2010Thoron",
       "affiliation": [
         {
           "@type": "Organization",
           "name": "CEREGE, France"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Tachikawa, Kazuyo",
       "givenName": "Kazuyo",
       "familyName": "Tachikawa",
       "affiliation": [
         {
           "@type": "Organization",
           "name": "CEREGE, France"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Vidal, Laurence",
       "givenName": "Laurence",
       "familyName": "Vidal",
       "affiliation": [
         {
           "@type": "Organization",
           "name": "CEREGE, France"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Sonzogni, Corinne",
       "givenName": "Corinne",
       "familyName": "Sonzogni",
       "affiliation": [
         {
           "@type": "Organization",
           "name": "CEREGE, France"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Marino, Gianluca",
       "givenName": "Gianluca",
       "familyName": "Marino",
       "affiliation": [
         {
           "@type": "Organization",
           "name": "The Australian National University, Australia"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Rohling, Eelco J.",
       "givenName": "Eelco J.",
       "familyName": "Rohling",
       "affiliation": [
         {
           "@type": "Organization",
           "name": "The Australian National University, Australia"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Ermini, Magali",
       "givenName": "Magali",
       "familyName": "Ermini",
       "affiliation": [
         {
           "@type": "Organization",
           "name": "CEREGE, France"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Koch, Mirjam",
       "givenName": "Mirjam",
       "familyName": "Koch",
       "affiliation": [
         {
           "@type": "Organization",
           "name": "Goethe-Universitat Frankfurt, Germany"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Cooper, Matthew J.",
       "givenName": "Matthew J.",
       "familyName": "Cooper",
       "affiliation": [
         {
           "@type": "Organization",
           "name": "University of Southamton, UK"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Wilson, Paul A.",
       "givenName": "Paul A.",
       "familyName": "Wilson",
       "affiliation": [
         {
           "@type": "Organization",
           "name": "University of Southamton, UK"
         }
       ]
     }
   ],
   "funder": [
     {
       "@type": "Organization",
       "name": "Eastern Geology and Paleoclimate Science Center",
       "url": "https://www.usgs.gov/centers/florence-bascom-geoscience-center"
     }
   ]
 }

}