Nancy,
In reply to your question on silver analysis of Lake District streams, the
work may have already been done, The British Geological Survey have
carried out an analysis of a large number of streams and sediments in the
area for metals, including silver. I think the reference is: "Regional
geochemistry of the Lake District and
adjacent areas", BGS, Keyworth, Nottingham 1992. No authors are named.
More details from BGS
Regards
Richard
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