1) La descarga del recurso depende de la página de origen
2) Para poder descargar el recurso, es necesario ser usuario registrado en Universia


Opción 1: Descargar recurso

Detalles del recurso

Descripción

We review the different sources of uncertainty affecting the oxygen isotopic composition of planktonic foraminifera and present a global planktonic foraminifera oxygen isotope data set that has been assembled within the MARGO project for the Late Holocene time slice. The data set consists of over 2100 data from recent sediment with thorough age control, that have been checked for internal consistency. We further examine how the oxygen isotopic composition of fossil foraminifera is related to hydrological conditions, based on published results on living foraminifera from plankton tows and cultures. Oxygen isotopic values (delta18O) of MARGO recent fossil foraminifera are 0.2-0.8 per mil higher than those of living foraminifera. Our results show that this discrepancy is related to the stratification of the upper water mass and generally increases at low latitudes. Therefore, as stratification of surface waters and seasonality depends on climatic conditions, the relationship between temperature and delta18O established on fossil foraminifera from recent sediment must be used with caution in paleoceanographic studies. Before models predicting seasonal flux, abundance and delta18O composition of a foraminiferal population in the sediment are available, we recommend studying relative changes in isotopic composition of fossil planktonic foraminifera. These changes primarily record variations in temperature and oxygen isotopic composition of sea water, although part of the changes might reflect modifications of planktonic foraminifera seasonality or depth habitat

Pertenece a

PANGAEA - Publishing Network for Geoscientific & Environmental Data  

Autor(es)

Waelbroeck, Claire -  Mulitza, Stefan -  Spero, Howard J -  Dokken, Trond -  Kiefer, Thorsten -  Cortijo, Elsa - 

Id.: 51830386

Idioma: inglés  - 

Versión: 1.0

Estado: Final

Tipo:  application/zip, 3 datasets - 

Palabras claveLIT -  Literary studies -  MARGO -  MARGO_0000 -  Multiproxy Approach for the Reconstruction of the Glacial Ocean surface -  Uniform resource locator/link to file -  URL file - 

Tipo de recurso: Dataset  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: CC-BY: Creative Commons Attribution 3.0 Unported

Formatos:  application/zip, 3 datasets - 

Requerimientos técnicos:  Browser: Any - 

Relación: [IsBasedOn] Supplement to: Waelbroeck, Claire; Mulitza, Stefan; Spero, Howard J; Dokken, Trond; Kiefer, Thorsten; Cortijo, Elsa (2005): A global compilation of Late Holocene planktonic foraminiferal d18O: Relationship between surface water temperature and d18O. Quaternary Science Reviews, 24(7-9), 853-868, doi:10.1016/j.quascirev.2003.10.014

Fecha de contribución: 27-jun-2016

Contacto:

Localización:
* doi:10.1594/PANGAEA.738561

Otros recursos del mismo autor(es)

  1. Evolution of South Atlantic density and chemical stratification across the last deglaciation
  2. Biological and physical controls in the Southern Ocean on past millennial-scale atmospheric CO2 changes Millennial-scale climate changes during the last glacial period and deglaciation were accompanied by...
  3. North Atlantic Deep Water Production during the Last Glacial Maximum Changes in deep ocean ventilation are commonly invoked as the primary cause of lower glacial atmosph...
  4. Benthic stable oxygen and stable carbon isotopes records from the sub-Antarctic Atlantic over several glacial-interglacial transitions author please provide abstract
  5. Holocene and Last Glacial Maximum Atlantic neodymium isotopes Neodymium isotopes measured on chemically uncleaned planktic foraminifera from cores throughout the ...

Otros recursos de la misma colección

  1. Carbonates and selected geochemistry composition for sediments from Lake Iznik for the past 31 ka cal BP This study examines the forcing mechanisms driving long-term carbonate accumulation and preservation...
  2. Effects of ocean acidification on the swimming ability, development and biochemical responses of sand smelt larvae Ocean acidification, recognized as a major threat to marine ecosystems, has developed into one of th...
  3. VEMOS2015: Velocity and deformation model for Latin America and the Caribbean, link to ZIP archive
  4. Environmental stability affects phenotypic evolution in a globally distributed marine picoplankton Marine phytoplankton can evolve rapidly when confronted with aspects of climate change because of th...
  5. Crustal deformation and surface kinematics after the 2010 earthquakes in Latin America Strong earthquakes cause large changes in the station positions and velocities of the geodetic refer...

Aviso de cookies: Usamos cookies propias y de terceros para mejorar nuestros servicios, para análisis estadístico y para mostrarle publicidad. Si continua navegando consideramos que acepta su uso en los términos establecidos en la Política de cookies.