2024-03-29T04:45:02Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/105692020-07-03T12:19:40Zcom_10261_5062com_10261_5com_10261_65com_10261_8col_10261_5064col_10261_318
2009-02-11T09:12:20Z
urn:hdl:10261/10569
Holocene climate variability in the western Mediterranean region from a deepwater sediment record
Frigola, Jaime
Moreno Caballud, Ana
Cacho, Isabel
Canals, Miquel
Sierro, Francisco Javier
Flores, José Abel
Grimalt, Joan O.
Hodell, David A.
Curtis, Jason H.
Paleoceanography: Abrupt/rapid climate change
Marine Geology and Geophysics
Marine sediments: Processes and transport
Paleoceanography: Insolation forcing
Thermohaline
Insolation forcing
Geochemistry: Sedimentary geochemistry
16 pages, 2 tables, 6 figures.
The detailed analysis of the International Marine Past Global Changes Study core MD99-2343 recovered from a sediment drift at 2391 m water depth north of the island of Minorca illustrates the effects of climate variability on thermohaline circulation in the western Mediterranean during the last 12 kyr. Geochemical ratios associated with terrigenous input resulted in the identification of four phases representing different climatic and deepwater overturning conditions in the Western Mediterranean Basin during the Holocene. Superimposed on the general trend, eight centennial- to millennial-scale abrupt events appear consistently in both grain size and geochemical records, which supports the occurrence of episodes of deepwater overturning reinforcement in the Western Mediterranean Basin. The observed periodicity for these abrupt events is in agreement with the previously defined Holocene cooling events of the North Atlantic region, thus supporting a strong Atlantic Mediterranean climatic link at high-frequency time intervais during the last 12 kyr. The rapid response of the Mediterranean thermohaline circulation to climate change in the North Atlantic stresses the importance of atmospheric teleconnections in transferring c1imate variability from high latitudes to midlatitudes.
2009-02-11T09:12:20Z
2009-02-11T09:12:20Z
2007-05-04
artÃculo
Paleoceanography 22(2): PA2209 (2007)
0883-8305
http://hdl.handle.net/10261/10569
10.1029/2006PA001307
eng
http://dx.doi.org/10.1029/2006PA001307
openAccess
American Geophysical Union