| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Espley rock | Mining | A conglomerate or breccia with rapid lateral passage through grit to fine sandstone; cement usually ferruginous with some lime and alumina. Characteristically developed amid variegated clays of Etruria Marl group of Upper Coal Measures in the English Midlands. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
