dropstone

Alternative definitions (0), class: vernacular (0)
Term: dropstone
Definition:

An oversized stone in laminated sediment that depresses the underlying laminae and may be covered by -draped laminae. Most dropstones originate through ice-rafting; other sources are floating tree roots and kelp holdfasts....

Created 2023.04.16
Last Modified 2023.04.16
Contributed by Ryan McGranaghan
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https://n2t.net/ark:/99152/h20447