quartz trachyte (Q41808)
From geokb
Trachytic rock that contains between 5 and 20 percent quartz in the QAPF fraction. QAPF field 7*.
- quartz-trachyte
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | quartz trachyte |
Trachytic rock that contains between 5 and 20 percent quartz in the QAPF fraction. QAPF field 7*. |
|
