Transient and steady-state salt transport between sediments and brine in closed lakes
Links
- More information: Publisher Index Page (via DOI)
- Open Access Version: Publisher Index Page
- Download citation as: RIS | Dublin Core
Abstract
A diffusional transport model for Lake Abert, Oregon, predicts the rates of salt transport from pore fluids into lake waters. In a lake without outflow dissolved salts may migrate across the sediment-water interface in response to a concentration difference between lake and interstitial brine. Transport of salt upward is transient; its direction can be reversed by external input of salt or by depletion of salts stored in the sediments, and a steady-state concentration in lake water is not attainable. Downward transport can be a stationary process if the sedimentation rate is rapid compared with molecular diffusion of salt in interstitial brine, but characteristic rates arc too slow to lead to steady-state concentrations within the lifetime of a closed lake. In Lake Abert, diffusional flux upward was much more important than input of salt from other sources; 45% of the salt of lake brine in 1963–1964 was added from the sediment pore space during the preceding 25 years, only 0.1% from external inflow. The sediment source will dominate input during high water level. Such models permit comparison of salt transport across the sediment-water interface with other input sources at different times of the lake’s history.
Study Area
Publication type | Article |
---|---|
Publication Subtype | Journal Article |
Title | Transient and steady-state salt transport between sediments and brine in closed lakes |
Series title | Limnology and Oceanography |
DOI | 10.4319/lo.1973.18.1.0072 |
Volume | 18 |
Issue | 1 |
Year Published | 1973 |
Language | English |
Publisher | Association for the Sciences of Limnology and Oceanography |
Description | 14 p. |
First page | 72 |
Last page | 85 |
Country | United States |
State | Oregon |
Other Geospatial | Lake Abert |
Google Analytic Metrics | Metrics page |