georefid:2013-036181SEDIS Publication Catalogue

ana.macario@awi.de

http://sedis.iodp.org/pub-catalogue/informationpointOfContact2013-07-08T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=2013-0361812012-01-01publicationgeorefid:2013-036181Cita, Maria BiancaUniversita di Milano, Dipartimento di Scienze della Terra "Ardito Desio", Milan, ItalyauthorGibbard, Philip L.University of Cambridge, United KingdomauthorHead, Martin J.Brock University, CanadaauthorInternational Union of Geological Sciences (IUGS), Ottawa, ON, CanadapublisherdocumentHardcopyEpisodes35 (3)388-397The Calabrian Stage is now formally defined by the Global Boundary Stratotype Section and Point (GSSP) at Vrica, Calabria, Italy. This GSSP has previously defined the base of the Pleistocene Series. The Calabrian becomes the second stage of the Pleistocene Series and Quaternary System, following the Gelasian. the GSSP occurs at the base of the marine claystone conformably overlying sapropelic bed 'e' within Segment B in the Vrica section. This lithological level represents the primary marker for the recognition of the boundary, and is assigned an astronomical age of 1.80 Ma on the basis of sapropel calibration. It coincides with the transition from Marine Isotope Stage 65 to 64, and the underlying sapropel bed 'e' is assigned to the Mediterranean Precession-Related Sapropel layer 176. Secondary markers include calcareous plankton bioevents of widely distributed taxa. The boundary falls between the highest occurrence of Discoaster brouweri (below) and the lowest common occurrence of left-coiling Neogloboquardrina pachyderma (above), and below the lowest occurrences of medium-sized Gephyrocapsa (including G oceanica) and globigerinoids tenellus. The tope of the Olduvai Subchron is identified c. 8 m above the GSSP. Ratification of the Calabrian Stage effectively completes the Lower Pleistocene Subseries.completedStratigraphyCalabria ItalyCalabrianCenozoicchronostratigraphyCrotone ItalyEast MediterraneanEuropeItalyLeg 160Leg 161lower PleistoceneMediterranean SeaMinorca RiseOcean Drilling ProgramODP Site 967ODP Site 975PleistoceneQuaternarySicily ItalySouthern Europestratigraphic boundarystratigraphic unitsstratotypesVrica ItalyWest Mediterraneanurn:org.iodp:exp:160urnlargerWorkCitationcampaignurn:org.iodp:exp:161urnlargerWorkCitationcampaignurn:org.iodp:exp:160:site:967urnlargerWorkCitationstudyurn:org.iodp:exp:160urnlargerWorkCitationcampaignurn:org.iodp:exp:161:site:975urnlargerWorkCitationstudyurn:org.iodp:exp:161urnlargerWorkCitationcampaignEnglishgeoscientificInformation4.303632.433134.041139.0500