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[en] Vertical profiles of rare earth elements (REEs) were examined in four Pb-210-dated sediment cores collected from the shelf and slope of the southern Baja California peninsula (areas in front of Santa Rosalia, Loreto, El Coyote and San Juan de La Costa) using instrumental neutron activation analysis technique. No significant anthropogenic impact on the content of REEs in sediments was found. Some variations of REEs concentrations seen down cores probably have natural origins, and are attributed to temporal changes of the ratio of terrigenous and marine biogenic supplies of REEs from the water column to the deposits of the sea floor. (authors)
Source
Kufcakova, J. (ed.); Macasek, F. (ed.); Rajec, P. (ed.) (Dept. of Nuclear Chemistry, Comenius University, Bratislava (Slovakia)); Foundation Curie, Bratislava (Slovakia); Department of Dept. of Nuclear Chemistry, Comenius University, Bratislava (Slovakia); 139 p; ISBN 80-223-1629-6; 
; 31 May 2001; p. 78; SIS'01: 9. international conference Separation of Ionic Solutes; Bratislava, Modra-Harmonia (Slovakia); 5-10 Jun 2001; Also available from Foundation Curie, Mlynska dolina CH-1, 84215 Bratislava, Slovakia
; 31 May 2001; p. 78; SIS'01: 9. international conference Separation of Ionic Solutes; Bratislava, Modra-Harmonia (Slovakia); 5-10 Jun 2001; Also available from Foundation Curie, Mlynska dolina CH-1, 84215 Bratislava, Slovakia