| 释义 |
Shell marl
| (Min.) | a kind of marl characterized by an abundance of shells, or fragments of shells. |
See also: Shell shell marl
shell marl[′shel ‚märl] (geology) A light-colored calcareous deposit formed on the bottoms of small fresh-water lakes, composed largely of uncemented mollusk shells and precipitated calcium carbonate, along with the hard parts of minute organisms. |