Rich silver-bearing lead ores in the northern Pennines?

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doi: 10.1144/pygs.53.3.207
Authors:Dunham, K. C.; Young, B.; Johnson, G. A. L.; Colman, T. B.; Fossett, R.
Author Affiliations:Primary:
Charleycroft, Quarryheads Lane, Durham, United Kingdom
British Geological Survey, United Kingdom
University of Durham, United Kingdom
University of Leicester, United Kingdom
Volume Title:Ansel Dunham memorial volume
Source:Ansel Dunham memorial volume. Proceedings of the Yorkshire Geological Society, Vol.53(Part 3), p.207-212. Publisher: Yorkshire Geological Society, Leeds, United Kingdom. ISSN: 0044-0604
Publication Date:2001
Note:In English. 35 refs.; 1 table, sketch map
Summary:The main lead ore mineral within the Northern Pennine carbonate-hosted galena-fluorite orefield is silver-bearing galena. Numerous reliable assay and recovery records, from the heyday of lead mining during the eighteenth and nineteenth centuries, indicate that silver values in the ores then being mined were typically fairly modest, in the range 100-250 ppm Ag. Historical records from the area written during the eleventh and twelfth centuries, although very much less complete and more open to interpretation, indicate levels of silver production which could not have been sustained from such ores. It is suggested that lead ores with much higher silver content may have been available in these earlier times. A few scattered occurrences of galena with enhanced silver content may represent the vestiges of these ores.
Sections:Economic minerals and ore deposits
Subsections:Metallic deposits: regional
Subjects:Galena; History; Lead ores; Metal ores; Mining; Mining geology; Silver ores; Sulfides; Alston Block; Cumbria England; England; Europe; Great Britain; Pennines; United Kingdom; Western Europe; Northern Pennine Orefield
Coordinates:N540000 N553000 W0010000 W0033000
Abstract Numbers:03M/1401
Record ID:2002005351
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute.
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