tuff (Q41893)
From geokb
A pyroclastic rock where the average size of more than 75% of the pyroclastic fragments is less than 64mm and less than 25% of the fragments are lapilli
Language | Label | Description | Also known as |
---|---|---|---|
English | tuff |
A pyroclastic rock where the average size of more than 75% of the pyroclastic fragments is less than 64mm and less than 25% of the fragments are lapilli |