root cast

root cast

[′rüt ‚kast]
(geology)
A slender, tubular, near-vertical, and commonly downward-branching sedimentary structure formed by the filling of a tubular opening left by a root. Also known as rhizoconcretion.
References in periodicals archive ?
In some segments of the profile the root cast formation allows the differentiation of single palm trees as well as the basal trunk diameters and growing distances (Figure 7).
At a field site near Sarnia, Ontario, root casts were observed in glacial till fractures to depths of 3.
Berner's findings may receive an additional boost when the Tennessee researchers analyze the fossil soils found with the root casts.