Document Detail


Mediterranean moisture source for an early-Holocene humid period in the northern Red Sea.
MedLine Citation:
PMID:  12677064     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Paleosalinity and terrigenous sediment input changes reconstructed on two sediment cores from the northernmost Red Sea were used to infer hydrological changes at the southern margin of the Mediterranean climate zone during the Holocene. Between approximately 9.25 and 7.25 thousand years ago, about 3 per thousand reduced surface water salinities and enhanced fluvial sediment input suggest substantially higher rainfall and freshwater runoff, which thereafter decreased to modern values. The northern Red Sea humid interval is best explained by enhancement and southward extension of rainfall from Mediterranean sources, possibly involving strengthened early-Holocene Arctic Oscillation patterns and a regional monsoon-type circulation induced by increased land-sea temperature contrasts. We conclude that Afro-Asian monsoonal rains did not cross the subtropical desert zone during the early to mid-Holocene.
Authors:
Helge W Arz; Frank Lamy; Jurgen Pätzold; Peter J Muller; Maarten Prins
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Science (New York, N.Y.)     Volume:  300     ISSN:  1095-9203     ISO Abbreviation:  Science     Publication Date:  2003 Apr 
Date Detail:
Created Date:  2003-04-04     Completed Date:  2003-04-25     Revised Date:  2007-03-19    
Medline Journal Info:
Nlm Unique ID:  0404511     Medline TA:  Science     Country:  United States    
Other Details:
Languages:  eng     Pagination:  118-21     Citation Subset:  -    
Affiliation:
Deutsche Forschungsgemeinschaft (DFG) Research Center for Ocean Margins, University of Bremen, Klagenfurter Strasse, 28359 Bremen, Germany. helge.arz@uni-bremen.de
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