Revision of the geological mapping was undertaken only where necessary for better understanding of the mineral deposits. In the course of this work, the mapping of the veins was revised, all exploratory levels and crosscuts were inserted on the six-inch maps, and all available mine-sections were reduced to the common scale of 200 ft to an inch. The occurrence of the barytes, witherite, fluorspar, lead, zinc and iron ores of the field were described in Volumes II, IV, IX, XXV and XXVI of the Special Reports on the Mineral Resources of Great Britain by R G Carruthers, T Eastwood, R L Sherlock, Stanley Smith and D A Wray.ĭuring the years 1939–1943, primarily for war purposes, the mineral deposits were re-investigated by Dr K C Dunham, under the superintendence of Mr T Eastwood Dr J R Earp assisting for a short period in 1941. No decriptive memoirs were, however, issued.
#PIPEROLL LEVEL 99 SOLUTION PICTURE FULL#
Of the 38 six-inch full sheets covering the Northern Pennine Orefield, all but 11 were published. The relevant portions of these were surveyed on the six-inch scale by D Burns, W Gunn, C T Clough, H Howell, J R Dakyns, H Miller and J G Goodchild between 18.
#PIPEROLL LEVEL 99 SOLUTION PICTURE SERIES#
The area covered by this economic memoir includes parts of that shown on Old Series one-inch sheets 102, 103 and 106, which were published between 18. British Geological Survey, Keyworth Nottingham NG12 5GG 20 March 1990 Preface to the first edition The Northumbrian Water Authority, through their Engineering Consultants Babtie Shaw and Morton generously permitted the examination of mineralised intersections before the concrete lining of the Tyne-Tees tunnel system took place Mr D A C Mills collaborated.į G Larminie OBE Director. are thanked for their aid with some aspects of the statistical data. Logging of certain important boreholes on behalf of the British Geological Survey was carried out by Mr I C Burgess and Dr A A Wilson. The author wishes to express his indebtedness for their help during this second period of investigation to Mr J A Hill, Mr D A Greenwood, Mr J D Willson, Mr A Treloar Jr, Mr P G L Vipan, Mr A Carstairs, Dr G A L Johnson, Dr B L Hodge, Professor A C Dunham, Dr F W Smith, Mr J R Foster-Smith, Mr W Wardrop, Mr H Green, Mr D W Strutt. Ltd, Weardale Minerals Ltd, and Weardale Mining and Processing Ltd.
Gratitude is expressed to the following operating companies for access to their properties and records: Athole G Allen (Stockton) Ltd, British Steel Corporation, Consolidated Gold Fields Ltd, Laporte Industries Ltd, the Owners of Settlingstones Mine Ltd, Swiss Aluminium (UK) Ltd, Vieille Montagne Zinc Co., Weardale Lead Co. Fluorspar production has quadrupled and barytes output has doubled during the period. The scientific editing has been carried out by Mr B Young at the Newcastle office of the British Geological Survey.ĭuring the past four decades, lead ore production has continued but only one mine has been worked for this ore alone, the greater part having been a by-product of the working of fluorspar and barium minerals. The later stages of the work have come under the supervision of Mr D H Land (Programme Manager, Northern England). This has been written, during his retirement at Durham, by Sir Kingsley Dunham. Consideration was given to the issuing of an appendix to Volume 2, then under preparation, summarising the wealth of new information which had become available during 40 years of lively mining activity, but this was rejected in favour of a revised second edition.
Geology of the Northern Pennine Orefield Volume 1 Tyne to Stainmore Economic Memoir of the British Geological Survey, sheets 19 and 25 and parts of 13, 24, 26, 31, 32 (England and Wales). Geology of the Northern Pennine Orefield, Volume 1 Tyne to Stainmore (2nd edition).
Geology of the Northern Pennine Orefield Volume I-Tyne to Stainmore Economic memoir covering the areas of 1:50 000 and one-inch geological sheets 19 and 25, and parts of 13, 24, 26, 31, 32 (England and Wales)īibliographic reference: Dunham, K C.
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