ID: 112852
QL_MAP_ID: 112852
MAP_ID: 9612|300009612|1004222
SHEET_TITLE: Llanidloes.
SHEET_NUMBER: 164
NOMINAL_YEAR: 2010
PUBLICATION_DATE: 2010-01-01T00:00:00
SERIES_CODE: E50k
SERIES: BGS 1:63,360/1:50,000 E&W, New Series
GEOLOGICAL_THEME_CODE: BS
GEOLOGICAL_THEME: Bedrock and Superficial
SCALE_CODE: 50k
SCALE: 1:50 000
AUTHOR_STATEMENT: Original geological survey at 1:63 360 scale by W.T. Aveline, H.W. Bristow, A.C. Ramsay and A.R. Selwyn. Published as parts of Old Series sheets 56, 57, 59 and 60 in 1848 and 1850. Central Wales Mining Field surveyed at 1:10 560 scale by O.T. Jones (University of Wales) in 1917-18, and part resurveyed by D. Williams in 1940. Small areas along the western and eastern margins of the sheet surveyed at 1:10 560 scale by R. Cave between 1965 and 1972. Southern margin surveyed at 1:10 000 scale by R. Cave, J. R. Davies, C.J.N. Fletcher, A.J Reedman and R.A. Waters between1986 and 1989. Resurveyed at 1:20 000 scale by J.A. Aspden, C.E. Burt, J.R. Davies, M. Hall, N.S. Jones, A.B. Leslie, T.H. Sheppard, P.R. Wilby and D. Wilson in 2006 utilising previously published and unpublished data. Biostratigraphy by S.P. Tunnicliff, A. Snelling, D.E. White and J.A. Zalasiewicz. J.R. Davies, Chief Geologist Wales.
PUBLICATION_STATEMENT: Published 2010. Print code: 2000/2007.
COLOURATION_CODE: P
COLOURATION: print coloured
VIEW_METADATA: https://webapps.bgs.ac.uk/data/MapsPortal/map.html?id=9612300009612
IMAGE_EXISTS: Y
VIEW_IMAGE: https://largeimages.bgs.ac.uk/iip/mapsportal.html?id=1004222
THUMBNAIL: https://resources.bgs.ac.uk/maps-portal-thumbnails/1004222.jpg
SHAPE_WGS84.AREA: 0
SHAPE_WGS84.LEN: 0