The sand and gravel resources of the country around Terling, Essex : description of 1:25,000 resource sheet TL 71

Eaton, C.H.. 1973 The sand and gravel resources of the country around Terling, Essex : description of 1:25,000 resource sheet TL 71. London, UK, British Geological Survey, 130pp. (Assesment of British Sand and Gravel Resources No. 6, Report 73/5) (Unpublished)

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Abstract/Summary

Geological maps prepared by the Institute of Geological Sciences, data from 121 boreholes drilled during a feasibility study in 1966-67 and for the Mineral Assessment Unit in 1968- 69, and other pre-existing borehole information form the basis for the assessment of sand and gravel resources in the Terling area, Essex (1:25 000 sheet TL 71). The sheet is divided into resource blocks, each ideally containing 10 km2 of mineral (potentially workable sand and gravel). A simple statistical method has been applied to estimate the mineral volume in each block where at least five sample points are available. The reliability of the volume estimates is given at the 95 per cent confidence level. For each block the inferred area of mineral, the estimated average thickness of overburden and of mineral and the calculated mean grading of mineral samples are also given. The geology of the various deposits occurring in the sheet and details of each resource block are described. Borehole positions, the geology and topography, and mineral resource information are shown on the accompanying 1:25 000 map TL 71. Detailed borehole data are given.

Item Type:	Publication - Report
Programmes:	BGS Programmes > Economic Minerals
ISBN:	118806084
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 13:38 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/534805

Item Type:

Publication - Report

Programmes:

BGS Programmes > Economic Minerals

ISBN:

118806084

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