 | This category does not require a rating on Wikipedia's content assessment scale. It is of interest to the following WikiProjects: | |||||||
| ||||||||
There is a difficulty here insofar as volcanic group is also a stratigraphical term referring to a suite of associated rock strata of volcanic origin such as the Borrowdale Volcanic Group of northern England (and which is listed here) which does not conform to the definitions in the intro text of this page. It is a different and equally valid useage. cheers Geopersona (talk) 06:01, 10 December 2010 (UTC)