(Table 1) Age determination of North Atlantic sediment cores


Autoria(s): Andersen, Catherine; Koç, Nalân; Jennings, Anne E; Andrews, John T
Cobertura

MEDIAN LATITUDE: 66.961305 * MEDIAN LONGITUDE: -13.457761 * SOUTH-BOUND LATITUDE: 66.641333 * WEST-BOUND LONGITUDE: -30.904300 * NORTH-BOUND LATITUDE: 67.125700 * EAST-BOUND LONGITUDE: 7.639330 * DATE/TIME START: 1995-06-08T00:00:00 * DATE/TIME END: 1999-08-01T00:00:00 * MINIMUM DEPTH, sediment/rock: 0.0025 m * MAXIMUM DEPTH, sediment/rock: 25.3200 m

Data(s)

24/11/2004

Resumo

High-resolution sediment cores from the Vøring Plateau, the North Iceland shelf, and the East Greenland shelf have been studied to investigate the stability of major surface currents in the Nordic Seas during the Holocene. Results from diatom assemblages and reconstructed sea-surface temperatures (SSTs) indicate a division of the Holocene into three periods: the Holocene Climate Optimum (9500-6500 calendar (cal) years BP), the Holocene Transition Period (6500-3000 cal years BP) and the Cool Late Holocene Period (3000-0 cal years BP). The overall climate development is in step with the decreasing insolation on the Northern Hemisphere, but regional differences occur regarding both timing and magnitude of SST changes. Sites under the direct influence of the Norwegian Atlantic Current and the Irminger Current indicate SST cooling of 4-5°C from early Holocene to present, compared to 2°C recorded under the East Greenland Current. Superimposed on the general Holocene cooling trend, there is a high-frequency SST variability, which is in the order of 1-1.5°C for the Vøring Plateau and the East Greenland shelf and 2.5-3°C on the North Iceland shelf.

Formato

text/tab-separated-values, 192 data points

Identificador

https://doi.pangaea.de/10.1594/PANGAEA.839405

doi:10.1594/PANGAEA.839405

Idioma(s)

en

Publicador

PANGAEA

Relação

Groenvold, K; Oskarsson, N; Johnsen, Sigfus J; Clausen, Henrik Brink; Hammer, C U; Bond, Gerard C; Bard, Edouard (1995): Ash layers from Iceland in the Greenland GRIP ice core correlated with oceanic and land sediments. Earth and Planetary Science Letters, 135(1-4), 149-155, doi:10.1016/0012-821X(95)00145-3

Direitos

CC-BY: Creative Commons Attribution 3.0 Unported

Access constraints: unrestricted

Fonte

Supplement to: Andersen, Catherine; Koç, Nalân; Jennings, Anne E; Andrews, John T (2004): Nonuniform response of the major surface currents in the Nordic Seas to insolation forcing: Implications for the Holocene climate variability. Paleoceanography, 19(2), PA2003, doi:10.1029/2002PA000873

Palavras-Chave #79US/Fr; Age, 14C AMS; Age, 14C calibrated; Age, comment; Age, dated; Age, dated material; Age, dated standard deviation; BC; Box corer; BS88/6_5; Calendar years; CALYPSO; Calypso Corer; Comment; DEPTH, sediment/rock; Elevation of event; Event label; GC; Giant box corer; GKG; Gravity corer; HU93030-019; HUD93/30; Hudson; IMAGES I; IMAGES V; JM97-948/2A; Laboratory code/label; Latitude of event; Longitude of event; Marion Dufresne; MD101; MD114; MD952011; MD95-2011; MD99-2269; N.Iceland shelf, Reykjafjardarall; Voring Plateau
Tipo

Dataset