Year: 1984
Type: article
Abstract: One important reaction which affects dissolved NH4+ distributions in marine sediments is reversible adsorption on sediment solids. We investigate both the temperature dependency and spatial variability of the NH4+ linear adsorption coefficient, K, in marine sediments. For a wide range of environments, because of approximately offsetting variations in sediment porosity and properties such as clay mineral and organic matter content, K is nearly constant (1.3 ± 0.1) in terrigenous, surface, marine sediments. The value of K also does not vary significantly as a function of temperature. In biogenic and very high porosity (≳0.95) sediments K may be somewhat lower than for other sedimentary environments. Sediments containing seagrass detritus such as Thalassia may be expected to exhibit relatively high K values.
Source: Limnology and Oceanography
Authors: James E. Mackin, Robert C. Aller
Institution: University of Chicago
Language: English
Subfield: Oceanography
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2061033403