Geochemistry of surface sediments in an acid stream estuary |
| |
| Authors: | P Foster DTE Hunt |
| |
| Institution: | Marine Science Laboratories, University College of North Wales, Menai Bridge Great Britain |
| |
| Abstract: | Selective chemical attack has been used to separate recent surface marine sediments into organic, non-detrital and detrital components, and the concentrations of iron, manganese, copper and zinc in each fraction determined. The non-detrital fraction controlled the overall elemental concentrations and relationships apparent in the bulk sediment, particularly in the cases of copper, manganese and zinc. Copper was found associated with the organic fraction. The predominant processes of primary deposition are precipitation of hydrated ferric oxide and adsorption of copper and zinc onto this material. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
