Five profiles of the silver concentration in the subArctic Northeast Pacific Ocean yield a broad correlation between the Ag content and dissolved Si. However, silver is depleted at intermediate depths where the 02 content is low, implying removal from oxygen-deplete waters.
An eighteen-month series of measurements of dissolved and particulate Ag from Saanich Inlet, BC indicate that Ag concentrations in near-surface waters are influenced by processes occurring outside the inlet. Dissolved silver was not detected in sulphide-bearing deep waters in the fjord. Ag in sediment-trap particles was associated with both biogenic and mineral phases. The Ag/biogenic Si ratio of the particles is related to the concentration of dissolved Ag in the surface waters suggesting a direct link between availability of the metal and its sequestration by diatoms.
| Identifer | oai:union.ndltd.org:uvic.ca/oai:dspace.library.uvic.ca:1828/2124 |
| Date | 29 January 2010 |
| Creators | Kramer, Dennis |
| Contributors | Pedersen, Thomas F. |
| Source Sets | University of Victoria |
| Language | English, English |
| Detected Language | English |
| Type | Thesis |
| Rights | Available to the World Wide Web |
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