FN Archimer Export Format
PT J
TI The role of large biogenic particles in the transport of atmospheric pollutant pb down to north-atlantic sediments
BT 
AF LAMBERT, CE
   VERON, A
   BUATMENARD, P
   HEYRAUD, M
   GROUSSET, F
   SIMPSON, W
AS 1:;2:;3:;4:;5:;6:;
FF 1:;2:;3:;4:;5:;6:;
C1 UNIV BORDEAUX 1,CTR RECH ENVIRONNEMENT MARIN,F-33405 TALENCE,FRANCE
   INST OCEANOG SCI,GODALMING GU8 5UB,SURREY,ENGLAND
   UNIV CAPE TOWN,DEPT PHYS,RONDEBOSCH 7700,SOUTH AFRICA
C2 UNIV BORDEAUX 1,CTR RECH ENVIRONNEMENT MARIN,F-33405 TALENCE,FRANCE
   INST OCEANOG SCI,GODALMING GU8 5UB,SURREY,ENGLAND
   UNIV CAPE TOWN,DEPT PHYS,RONDEBOSCH 7700,SOUTH AFRICA
IF 0.662
TC 17
UR https://archimer.ifremer.fr/doc/00102/21280/18889.pdf
LA English
DT Article
DE ;PB;MARINE POLLUTION;NORTH ATLANTIC;BIOGENIC CYCLING
AB Pb concentrations were measured on large particles (diameter > 10-mu-m) at seven stations in North East Atlantic waters, and Pb isotopic composition was determined on one sediment core (Fluxatlante cruise, 1985). In intermediate and deep waters, Pb concentrations on large particles are about 0.5 ng l-1, less than 1 % of total lead and show a close correlation with Pb-210. This suggests that lead is primarily scavenged from the dissolved Pb pool in surface waters with little further scavenging in deep waters. Such an interpretation is supported by our observation of stable Pb isotopic ratios in surficial sediments which suggests that a rapid coupling exists between the atmospheric input of Pb to surface waters and its delivery to the water-sediment interface. Furthermore, the calculated large-particle lead flux leaving surface waters can account for our inventory of surficial sediments.
PY 1991
SO Oceanologica Acta
SN 0399-1784
PU Gauthier-Villars
VL 14
IS 1
UT A1991EZ66900006
BP 67
EP 76
ID 21280
ER

EF