The sand and gravel resources of the country around Shrewsbury, Shropshire : description of 1:25,000 resource sheet SJ 41 and SJ 51

The assessment of the sand and gravel resources in the Shrewsbury area, Shropshire, is based on the geological maps and borehole records of the Institute of Geological Sciences, records made available by the sand and gravel industry, recent fieldwork and one hundred and seventy three boreholes drilled for the Industrial Minerals Assessment Unit. All deposits in the area which might be potentially workable for sand and gravel have been investigated geologically and a simple statistical method has been used to estimate the volume. The reliability of the volume estimates is given at the symmetrical 95 per cent confidence level. The district has been divided into six resource blocks containing between 10.0 and 22.1 km2 of sand and gravel. For these blocks the geology of the deposits is described and the mineral-bearing area, the mean thickness of overburden and mineral, and the mean grading of the mineral are stated. Detailed borehole data are given. The geology, the position of the boreholes and the outlines of the resource blocks are shown on the accompanying map.