Map record details

Map series Geological Survey of England and Wales 1:63,360/1:50,000 geological map series, New Series 
Sheet number 213 
Sheet title Brecon. 
Map type Bedrock and Superficial 
Scale 1:50 000 
Publication year 2005 
Author statement Original geological survey at 1:63 360 scale by W.T. Aveline, H.T. De la Beche, T.E. James, W E. Logan, J. Phillips, A.C. Ramsay, J. Rees and D.H. Williams, published as parts of the Old Series sheets 42 SW in 1845 and 41 and 42 NW in 1857. Partly resurveyed at 1:25 000 scale by W.J. Barclay, A.J. Humpage and P.R. Wilby in 2002 and partly at 1:10 560 and 1:10 000 scale by J.R. Davies, I.H.S. Hall, K. Taylor, R.A. Waters, P.R. Wilby and D. Wilson in 1970, 1972, 1999 and 2002-2003. Silurian biostratigraphy by M. Williams. Digital photogrammetry by M. Hall. The survey was co-funded by the Environment Agency (Wales) and the Welsh Assembly Government (Planning and Environmental Protection divisions). P.J. Strange, Regional Geologist. 
Published statement Published 2005. Print code: 2000/2005. 
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