Item talk:Q315992

{

 "USGS Publications Warehouse": {
   "@context": "https://schema.org",
   "@type": "Article",
   "additionalType": "Journal Article",
   "name": "Did intense volcanism trigger the first Late Ordovician icehouse?",
   "identifier": [
     {
       "@type": "PropertyValue",
       "propertyID": "USGS Publications Warehouse IndexID",
       "value": "70156883",
       "url": "https://pubs.usgs.gov/publication/70156883"
     },
     {
       "@type": "PropertyValue",
       "propertyID": "USGS Publications Warehouse Internal ID",
       "value": 70156883
     },
     {
       "@type": "PropertyValue",
       "propertyID": "DOI",
       "value": "10.1130/G30577.1",
       "url": "https://doi.org/10.1130/G30577.1"
     }
   ],
   "journal": {
     "@type": "Periodical",
     "name": "Geology",
     "volumeNumber": "38",
     "issueNumber": "4"
   },
   "inLanguage": "en",
   "isPartOf": [
     {
       "@type": "CreativeWorkSeries",
       "name": "Geology"
     }
   ],
   "datePublished": "2009",
   "dateModified": "2015-09-02",
   "abstract": "Oxygen isotopes measured on Late Ordovician conodonts from Minnesota and Kentucky (United States) were studied to reconstruct the paleotemperature history during late Sandbian to Katian (Mohawkian\u2013Cincinnatian) time. This time interval was characterized by intense volcanism, as shown by the prominent Deicke, Millbrig, and other K-bentonite beds. A prominent carbon isotope excursion (Guttenberg \u03b413C excursion, GICE) postdates the Millbrig volcanic eruptions, and has been interpreted to reflect a drawdown of atmospheric carbon dioxide and climatic cooling. The oxygen isotope record in conodont apatite contradicts this earlier interpretation. An increase in \u03b418O of 1.5\u2030 (Vienna standard mean ocean water) just above the Deicke K-bentonite suggests an abrupt and short-lived cooling that possibly initiated a first short-term glacial episode well before the major Hirnantian glaciation. The decrease in \u03b418O immediately after the mega-eruptions indicates warming before the GICE, and no cooling is shown in the GICE interval. The coincidence of the Deicke mega-eruption with a cooling event suggests that this major volcanic event had a profound effect on Late Ordovician (late Mohawkian) climate.",
   "description": "4 p.",
   "publisher": {
     "@type": "Organization",
     "name": "Geological Society of America"
   },
   "author": [
     {
       "@type": "Person",
       "name": "Repetski, John E. jrepetski@usgs.gov",
       "givenName": "John E.",
       "familyName": "Repetski",
       "email": "jrepetski@usgs.gov",
       "identifier": {
         "@type": "PropertyValue",
         "propertyID": "ORCID",
         "value": "0000-0002-2298-7120",
         "url": "https://orcid.org/0000-0002-2298-7120"
       },
       "affiliation": [
         {
           "@type": "Organization",
           "name": "Eastern Geology and Paleoclimate Science Center",
           "url": "https://www.usgs.gov/centers/florence-bascom-geoscience-center"
         },
         {
           "@type": "Organization",
           "name": "Florence Bascom Geoscience Center",
           "url": "https://www.usgs.gov/centers/florence-bascom-geoscience-center"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Bergstrom, S. M.",
       "givenName": "S. M.",
       "familyName": "Bergstrom",
       "affiliation": [
         {
           "@type": "Organization",
           "name": "Ohio State University, School of Earth Sciences, Columbus, Ohio, USA"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Buggisch, Werner",
       "givenName": "Werner",
       "familyName": "Buggisch"
     },
     {
       "@type": "Person",
       "name": "Joachimski, Michael M.",
       "givenName": "Michael M.",
       "familyName": "Joachimski"
     },
     {
       "@type": "Person",
       "name": "Lehnert, Oliver",
       "givenName": "Oliver",
       "familyName": "Lehnert"
     }
   ],
   "funder": [
     {
       "@type": "Organization",
       "name": "Eastern Geology and Paleoclimate Science Center",
       "url": "https://www.usgs.gov/centers/florence-bascom-geoscience-center"
     }
   ]
 }

}