Gleying


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Gleying

 

a soil-forming process occurring under conditions of oxygen reduction. Gleying is promoted by microorganisms, the presence of organic substances, and the constant or prolonged flooding of individual horizons or the entire soil profile.

References in periodicals archive ?
The third study recently by Beget (2000) has shown that scanning electron microscope (SEM) imagery of ferro-magnetic grains separated from palaeosols in Alaskan loess shows pitting and other chemical dissolution features on the grains consistent with pedogenic gleying.
Vodyanitskiy YN, Vaslyev AA (1995)Effect of surface gleying on iron componds in sod-pozolic soils on Permian deposits.
However, lower chroma (<2; Table 1) and the dominance of gley hues (10GY and 5GY; Table 1) in P4 indicate a more intense gleying process in this site, similar to those found in mangrove soils (Table 1, Fig.
Slight impoverishment in iron of all weathered gley(ic) horizons is due to the mobilization of ferrous compounds during the gleying and the seasonal fluctuation of the groundwater table.
The interfraction transformation of zircon seems to have been taken place under the impact of the gleying on till.
Proceeding from former interpretations (Brinkman 1979; Blume 1990; Reyntam & Tsobel 1991; Reintam 2000), these changes can represent the result of ferrolysis, segregation, and surface gleying against the background of former ground gleying, while a neoformation of ferrosilicates must have taken place.