Reconstruccion de la posicion del frente artico a partir de las asociaciones de foraminiferos planctonicos durante los estadios isotopicos marinos 14,15 y 16  [Arctic front reconstruction based on planktonic foraminiferal assemblage analyses for the marine isotope stages 14, 15 and 16]

Online Access: Get full text
Alternate Title(s): Arctic front reconstruction based on planktonic foraminiferal assemblage analyses for the marine isotope stages 14, 15 and 16
Author(s): Alonso-García, Montserrat; Sierro, Francisco Javier; Flores, José Abel
Author Affiliation(s): Primary:
Universidad de Salamanca, Departamento de Geologia (Area de Paleontologia), Salamanca, Spain
Volume Title: Comunicaciones presentadas en la 45 sesion cientifica de la Sociedad Geologica de España
Volume Author(s): Alonso Chaves, F. M., editor; Fernandez Rodriguez, C.; Morales, J. A.; Colombo, F.
Source: Geogaceta, Vol.45, p.79-82; 45. sesion cientifica de la Sociedad Geologica de España, Leioa, Spain, Nov. 28, 2008, edited by F. M. Alonso Chaves, C. Fernandez Rodriguez, J. A. Morales and F. Colombo. Publisher: Sociedad Geológica de España, Salamanca, Spain. ISSN: 0213-683X
Note: In Spanish with English summary. 4 refs.; illus.
Summary: Planktic foraminifer assemblages and lithic components from IODP core U1314 (northern North Atlantic) were studied with high resolution from marine isotope stage (MIS) 14 to 16 (∼ 530-700 ka). This study aims to contribute to a better understanding of the mid-Pleistocene climate shifts. The record shows the evolution of the Arctic front and allows us to infer the relative position of the sea-ice edge. During MIS 16 Arctic front was south of the core location, while during MIS 14 the front was placed northward but near the core location, therefore stage 16 was colder than 14. Besides, during the interglacial stage 15, two brief cold substages were recorded showing that the Arctic front crossed again the core location area.
Year of Publication: 2008
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 24 Surficial Geology, Quaternary Geology; Arctic Ocean; Atlantic Ocean; Boreal environment; Cenozoic; Expedition 306; Expeditions 303/306; Foraminifera; IODP Site U1314; Integrated Ocean Drilling Program; Invertebrata; Isotopes; MIS 14; MIS 15; MIS 16; Microfossils; Middle Pleistocene; North Atlantic; Northeast Atlantic; Paleoclimatology; Planktonic taxa; Pleistocene; Protista; Quaternary; Temperate environment; Terrestrial environment; Zoning
Coordinates: N562200 N562200 W0275300 W0275300
Record ID: 2014037446
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Instituto Geologico y Minero de Espana, Madrid, Spain