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Mineral exploration for zinc, lead and baryte in Middle Dalradian rocks of the Glenshee area, Grampian Highlands

By J.S. Coats and N.J. Fortey

Abstract

Drainage surveys and airborne geophysical surveys of a\ud 600 km2 area from Blair Atholl to Braemar identified\ud several targets near Glenshee within the Ben Eagach\ud Schist, the host formation of the Aberfeldy deposits, lying\ud 30 km along the Dalradian strike to the SW. Integrated\ud geological, geochemical and geophysical surveys have\ud been carried out over these targets. The extensive cover of\ud peat and glacial overburden, particularly over the softer\ud lithologies of the formation, hinders geological mapping\ud and near-surface leaching has destroyed most of the\ud sulphide. The presence of base metals and baryte is best\ud shown by detailed drainage sampling and the sulphidebearing\ud graphitic schist can be traced through drift\ud covered ground by VLF-EM, IP and SP surveys. Six\ud shallow boreholes were drilled on the basis of the\ud geochemical and geophysical anomalies and mapping of\ud the available outcrops.\ud Zinc-lead mineralisation has been found in the elastic\ud lower member of the Ben Eagach Schist as well as in the\ud upper member of graphitic schist. Vein baryte with minor\ud base metals is present in the Ben Lui Schist, a higher\ud Middle Dalradian formation, in southern Glenshee.\ud The detailed information available for the Glenshee\ud area is listed in the Data Package. A charge of &lOOO will\ud be made for a copy of this information, consultation with\ud staff, drillcore examination and for the time of staff required\ud to make a short field visit to the area

Topics: Earth Sciences
Publisher: British Geological Survey
Year: 1987
OAI identifier: oai:nora.nerc.ac.uk:11814

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Citations

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