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In weathering or contact with aerated water, the sulfides are oxidized to yield sulfate ions which are carried off in the water. Sulfate is carried to bodies of water by rain and through solution of sulfate compounds in sedimentary geologic formations within the drainage basin.
1 Ιαν 2021 · Sulphate is an ubiquitous anion in natural waters. Regions with little anthropogenic influence on the S cycle, such as lowland Amazonia and polar regions, experience natural fluctuations in SO 4 2-concentrations related to bedrock composition and streamflow (Markewitz et al., 2001; Hodson et al., 2010; Kristiansen et al., 2013).
24 Νοε 2020 · Sulphate (SO42-) concentrations in freshwaters have increased globally over the last decades even though a strong reduction in atmospheric sulphur (S) deposition has occurred across large parts...
20 Δεκ 2001 · Introduction. Sulphur cycling in aquatic sediments involves both reductive and oxidative processes (Jørgensen, 1988, 1990) (Fig. 1) and these have often been neglected in studies of organic matter cycling in freshwater sediments (Capone & Kiene, 1988).
Explain the role of sulfate ions in the sulfur cycle and how they are produced and consumed in natural processes. Sulfate ions are a crucial component of the sulfur cycle, where they are produced by the oxidation of sulfur-containing compounds, such as sulfur dioxide and hydrogen sulfide.
17 Μαΐ 2023 · Water cycle, also known as the hydrologic cycle, involves a series of stages that show the continuous movement and interchange of water between its three phases – solid, liquid, and gas, in the earth’s atmosphere. The sun acts as the primary source of energy that powers the water cycle on earth.
Due to the high concentration of sulfate in seawater (28 mM at an ocean salinity of 35), sulfate generally penetrates meters down into the seabed and supplies the sulfate reducing microorganisms (SRM) with an electron acceptor for their respiration.
