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REE in the Great Whale River estuary, northwest QuebecA report on REE concentrations within the estuary of the Great Whale River in northwest Quebec and in Hudson Bay is given, showing concentrations which are less than those predicted by conservative mixing of seawater and river water, indicating removal of REE from solution. REE removal is rapid, occurring primarily at salinities less than 2 percent and ranges from about 70 percent for light REE to no more than 40 percent for heavy REE. At low salinity, Fe removal is essentially complete. The shape of Fe and REE vs. salinity profiles is not consistent with a simple model of destabilization and coagulation of Fe and REE-bearing colloidal material. A linear relationship between the activity of free ion REE(3+) and pH is consistent with a simple ion-exchange model for REE removal. Surface and subsurface samples of Hudson Bay seawater show high REE and La/Yb concentrations relative to average seawater, with the subsurface sample having a Nd concentration of 100 pmol/kg and an epsilon(Nd) of -29.3; characteristics consistent with river inputs of Hudson Bay. This indicates that rivers draining the Canadian Shield are a major source of nonradiogenic Nd and REE to the Atlantic Ocean.
Document ID
19880053750
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Goldstein, Steven J.
(Harvard Univ. Cambridge, MA, United States)
Jacobsen, Stein B.
(Harvard University Cambridge, MA, United States)
Date Acquired
August 13, 2013
Publication Date
May 1, 1988
Publication Information
Publication: Earth and Planetary Science Letters
Volume: 88
Issue: 3-4
ISSN: 0012-821X
Subject Category
Geophysics
Accession Number
88A40977
Funding Number(s)
CONTRACT_GRANT: NSF EAR-82-06954
CONTRACT_GRANT: NSF EAR-85-11912
CONTRACT_GRANT: NAG9-90
Distribution Limits
Public
Copyright
Other

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