The sand and gravel resources of the Welshampton area, Shropshire and Clwyd : description of 1:25,000 resource sheet SJ 43

The geological maps of the Institute of Geological
Sciences, pre-existing borehole information, and boreholes
drilled for the Industrial Minerals Assessment Unit
form the basis of the assessment of the sand and gravel
resources of the country around Welshampton,
Shropshire/Clwyd.
All the deposits in the district that might be
potentially workable for sand and gravel have been
investigated 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 probability level.
The 1:25 000 map is divided into five resource blocks,
containing between 3.6 and 36.5 km2 of sand and gravel.
For each block the geology of the deposits is described,
and the mineral-bearing area, the mean thickness of
overburden and mineral and the mean gradings are
stated. Detailed borehole data are also given. The
geology, the position of the boreholes and the outlines of
the resource blocks are shown on the accompanying map.