The sand and gravel resources of the country around Layer Breton and Tolleshunt D'Arcy, Essex : description of 1:25 000 resource sheet TL 91 and part of TL 90

Ambrose, J.D.. 1973 The sand and gravel resources of the country around Layer Breton and Tolleshunt D'Arcy, Essex : description of 1:25 000 resource sheet TL 91 and part of TL 90. London, UK, British Geological Survey, 42pp. (Assessment of British Sand and Gravel Resources No. 7, Report 73/8) (Unpublished)

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Abstract/Summary

It has become increasingly clear in recent years that an assessment of resources of many minerals should be undertaken. This is a report of the Mineral Assessment Unit which was set up in May 1968 to undertake such work. It describes and quantifies the resources of sand and gravel of 125. 5 km of country around Layer Breton and Tolleshunt D'Arcy shown on the accompanying 1:25 000 resource sheet TL 91 and part of TL 90. 2 This survey is concerned with assessing sand and gravel resources on a regional scale at the indicated level; the deposits are not outlined completely nor their grade established throughout. The work may be regarded as the application to large areas of methods used commercially for evaluating reserves on small sites. It may also be regarded as an extension of geological mapping by providing information about the thickness and quality of deposits. The survey was conducted by Mr J.D. Ambrose assisted by Mr N.E. Bradbury as field officer who supervised the drilling and sampling programme, and Mr G. M. Bladon who helped in the preparation of data for this publication. The work is based on a geological survey at the scale of 1:lO 560 in 1966-67 by Dr C. R. Bristow (East Anglia and South- East England Field Unit) who has also helped in the geological interpretation. Mr J. W. Gardner, C, B, E. (Land Agent) has been responsible for negotiating access to land for drilling. The ready cooperation of land owners and tenants in this work is gratefully acknowledged. Special thanks are due to Dr T. L. Thomas of the Royal School of Mines, London, for his advice on methods of resource calculation. Financial support for the survey was provided by the Department of the Environment.

Item Type:	Publication - Report
Programmes:	BGS Programmes > Economic Minerals
ISBN:	118806149
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 13:42 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/534806

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