1. Barnes R. P. Young S. R. 1995. The lithological and discontinuity characteristics of the Borrowdale Volcanic Group at outcrop in the Craghouse Park and Latterbarrow areas. British Geological Survey Report No. WA/94/04C .
2. Beddoe-Stephens B. Phillips E. R. 1992. The petrology of the Borrowdale Volcanic Group within Sellafield Borehole No. 2. UK Nirex Ltd Report No. 204 .
3. Beddoe-Stephens B. Phillips E. R. 1993a. The petrology of the Borrowdale Volcanic Group within Sellafield Borehole No. 4. UK Nirex Ltd Report No. 224 .
4. Beddoe-Stephens B. Phillips E. R. 1993b. The petrology of the Borrowdale Volcanic Group within Sellafield BH5. British Geological Survey Report No. CC93S/405/CF-AâC .
5. Beddoe-Stephens B. Phillips E. R. 1994. The petrology of the Borrowdale Volcanic Group within Sellafield Borehole No. 7A. UK Nirex Ltd Report No. 217 .