Book
The geochemistry of selenium and sulfur in a coastal salt marsh
01 Jan 1988
Abstract
Investigation of the various chemical forms of selenium and sulfur in sediments and pore waters can provide information about various oxidation/reduction processes. Five cores were obtained from the Great Marsh, from April 1985 to June 1986. Sampling times coincided with the seasonal redox cycle known to occur within the marsh system. Iron monosulfides and elemental sulfur both display large seasonal changes in concentration and distribution with depth, indicating a coupling with redox conditions. The depth distribution of total sedimentary selenium shows minor variations with season. In contrast, sedimentary (selenite + selenate) shows marked seasonality. Mass balance modeling indicates that the major export of selenium from the marsh sediment is either gaseous emission of selenium or the flux of Spartina alterniflora litter from the marsh system.
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Details
- Title
- The geochemistry of selenium and sulfur in a coastal salt marsh
- Creators
- D Velinsky
- Resource Type
- Book
- Language
- English
- Academic Unit
- Biodiversity, Earth, and Environmental Science (BEES)
- Identifiers
- 991020836340304721