The sand and gravel resources of the country north of Harlow, Essex : description of 1:25,000 resource sheet TL 41

Hopson, P.M.. 1979 The sand and gravel resources of the country north of Harlow, Essex : description of 1:25,000 resource sheet TL 41. London, UK, British Geological Survey, 127pp. (Mineral Assessment Report 46) (Unpublished)

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Abstract/Summary

The geological maps of the Institute of Geological Sciences, pre-existing borehole information and 98 boreholes drilled for the Industrial Minerals Assessment Unit, form the basis of the assessment of sand and gravel in the area north of Harlow, Essex. All deposits in the area which 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 95 per cent probability level. The l :25 000 map is divided into five resource blocks containing between 8.3 and 14.2 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.

Item Type:	Publication - Report
Programmes:	BGS Programmes > Economic Minerals
ISBN:	0118841076
Funders/Sponsors:	British Geological Survey, Natural Environment Research Council
Additional Information. Not used in RCUK Gateway to Research.:	This item has been internally reviewed, but not externally peer-reviewed.
Additional Keywords:	sand, gravel
NORA Subject Terms:	Earth Sciences
Date made live:	06 Jun 2023 15:54 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/534849

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