Transfer and deposition of gold in the Congo watershed

Details Transfer and deposition of gold in the Congo watershed Transfer and deposition of gold in the Congo watershed

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990e%26psl.100..108b&link_type=abstract

Earth and Planetary Science Letters, Volume 100, Issue 1-3, p. 108-117.

Physics

1

Scientific paper

Gold has been measured in water and suspended particulate matter samples coming from the Oubangui-Congo system. Gold anomalies up to 800 picoM/l were measured at two different locations. These are interpreted as the result of gold transport by dissolved organic complexes. Everywhere else the gold content is in the range of 10-11 M/l and gold is present as an aurous hydroxichloride complex.
The knowledge of both discharge rates and gold content allows a quantification of the gold input into the Atlantic ocean. Respective values for dissolved and particulate gold input are equal to 2.86 t/a and 2.95 t/a. Both chemical denudation and physical weathering rates were computed from this new set of data.

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