Radionuclides from moored sediment trap samples

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Principal investigator:  Bob Anderson
Collaborators:           Zanna Chase and Martin Fleisher
Institution:             Lamont-Doherty Earth Observatory

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Notes:

Sediment trap samples were analyzed for U, Th and Pa by isotope dilution
inductively-coupled mass spectrometry.  Be-10 is measured by accelerator
mass spectrometry after spiking with Be-9. Results for moorings 1-5 were 
acquired by quadrapole ICP-MS (Chase, et. al.) and results for moorings 
6 and 7 were acquired by magnetic sector ICP-MS (Fleisher and Anderson).


Methodology for sediment trap sample radionuclides: 

   from AESOPS moorings 1 through 5
   Chase, Z., R. F. Anderson, M. Q. Fleisher and P. Kubik.
   Scavenging of 230Th, 231Pa and 10Be in the Southern Ocean (SW Pacific
   sector): The importance of particle flux and advection.  Deep-Sea
   Research-II, submitted (3rd AESOPS volume).

   from AESOPS moorings 6 and 7
   Fleisher, M. Q. and R. F. Anderson.  Assessing the Collection Efficiency of
   Ross Sea Sediment Traps using 230Th and 231Pa. Deep-Sea Research-II, in
   press. (3rd AESOPS volume)


Reference:

Y. Lao, R.F. Anderson, W.S. Broecker, H.J. Hofmann and W. Wolfli,
Particulate fluxes of 230Th, 231Pa, and 10Be in the Northeastern Pacific
Ocean, Geochimica Cosmochimica Acta 57(1), 205-217, 1993.



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