BGS Rock Classification Scheme - Text search results
45 records found. Please click on a code for a "thumbnail" definition.
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| Description | Code |
|---|---|
| Syenite, mafic | SYGM |
| Syenite, kalsilite-bearing | SYKB |
| Leucosyenite | SYL |
| Melasyenite | SYM |
| Syenitic-rock - A type of coarse-grained normal crystalline rock. In the Rock Classification Scheme, this class includes syenite, monzonite, and similar rocks. The term may be used as a field classification when an accurate mineral mode from thin section examination is not available. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 9, 10. | SYR |