Solifluction is a synonym of slud.
In geology terms the difference between slud and solifluction
is that slud is a rapid soil creep, especially referring to downslope soil movement in periglacial areas while solifluction is soil creep caused by waterlogged soil slowly moving downhill on top of an impermeable layer.
slud
English
Noun
(en-noun)
(geology) A rapid soil creep, especially referring to downslope soil movement in periglacial areas.
Synonyms
* (rapid soil creep) sludging, soil flow, soil fluction, solifluction.
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solifluction
English
Noun
(
en noun)
(geology) Soil creep caused by waterlogged soil slowly moving downhill on top of an impermeable layer.
See also
* slud