Skip to main content
Article thumbnail
Location of Repository

Stratabound barium-zinc mineralisation in Dalradian schist near Aberfeldy, Scotland. Final report

By J.S. Coats, C.G. Smith, M.J. Gallagher, F. May, W.J. McCourt, M.E. Parker and N.J. Fortey


The discovery and preliminary assessment of stratabound\ud barium-zinc mineralisation in Dalradian metamorphic rocks\ud near Aberfeldy (outlined in MRP Report No. 26) resulted\ud from co-ordinated geological, geochemical, geophysical and\ud mineralogical studies, full details of which are presented\ud here. The presence of an extensive zone of mineralisation\ud in the area was recognised initially by a geochemical\ud drainage survey and , reconnaissance geological mapping.\ud Subsequently, more detailed mapping and drainage sampling\ud were supplemented by VLF-EM geophysical surveys, overburden\ud and rock sampling, and shallow drilling. The\ud VLF-EM technique successfully delineated resistive rocks\ud within the generally conductive graphitic schists and proved\ud a valuable mapping aid in areas of poor exposure.\ud The mineralised zone is defined by the presence of\ud bedded baryte, sulphide concentrations, quartz-celsian rock\ud and micaceous schists in which the muscovite is barium-rich.\ud It varies in thickness from about 60 m to 110 m and\ud extends, at least intermittently, over 7 km of strike and\ud through a vertical interval of 370 m. Individual baryte bands\ud are 2.3-l 5.5 m thick and may extend along strike for up to\ud 1.8 km. The greatest sulphide concentration is in carbonate\ud rock assaying 8.5% Zn and 3.6% Pb over 4.3 m. Other\ud unusual constituents of the mineralised zone are the barium\ud silicates hyalophane and cymrite and the chromian muscovite\ud fuchsite.\ud It is concluded that the mineralisation is of synsedimentary\ud origin, involving the introduction of metal-rich\ud hydrothermal brine into an euxinic basin

Topics: Earth Sciences
Publisher: Institute of Geological Sciences
Year: 1981
OAI identifier:

Suggested articles


  1. (1976). A rapid method for the analysis of trace elements in rocks, stream sediments and soils by photographic emission spectrography using a semi-automated method of plate evaluation.
  2. (1977). A sedimentary barite deposit from the Archaean Fig Tree doi
  3. (1969). A simplified statistical treatment of geochemical data by graphical representation. doi
  4. (1967). An occurrence of cymrite in the Franciscan formation,
  5. and others 1980. Strata-bound barium-zinc mineralisation in Dalradian schist near Aberfeldy,
  6. (1980). Barium determination in rock and overburden by portable XRF spectro56 meter.
  7. (1980). Compilation of strata-bound mineralisation in the Scottish Caledonides. Mineral Reconnaissance Programme Rep.
  8. CYD I !lo.
  9. (1964). Cymrite in a copper deposit.
  10. (1978). Ensialic basin sedimentation: the Dalradian Supergroup.
  11. (1973). Geochemical mapping and prospecting by use of rapid automatic X-ray fluorescence analysis of panned concentrates.
  12. (1979). Geochemistry and diagenesis of recent heavy metal ore deposits at the Atlantis II Deep (Red Sea).
  13. (1970). Geochemistry of black shale deposits - a summary report. doi
  14. (1977). Geophysical surveys near Creag an Fhithich.
  15. (1977). Investigation of stratiform mineralisation in parts of central Perthshire. Mineral Reconnaissance Programme Rep.
  16. (1981). l.z?O 0.43 TI 0.36"
  17. (1974). Laboratory handbook of petrographic techniques. (Wiley Interscience, doi
  18. (1973). Limiting conditions for synsedimentary sulphide ore formation.
  19. (1969). Newly discovered bedded barite deposits in East Northumberland Canyon, Nye County,
  20. (1960). On correlation between variables of constant sum. doi
  21. (2006). PB x x x x PPM PPH PPtl PPH PPH x F'C'rl *
  22. (1979). Phase boundaries as an instrument for metal concentration in geological systems.
  23. (1969). Prospecting with Radio Frequency EM- 16 in mountainous regions.
  25. (1970). Sedimentary features of the Meggen barite-pyrite-sphalerite deposit and a comparison with the Arkansas barite deposits.
  26. (1978). Stratabound barium-zinc mineralisation in Dalradian schist near Aberfeldy, Scotland: Preliminary report. Mineral Reconnaissance Programme Rep.
  27. (1955). Studies in the mica group; X-ray data on roscoelite and bariummuscovite. doi
  28. (1975). The Dalradian Supergroup. In A correlation of the Precambrian rocks in the British Isles.
  29. (1971). The Devonian mineral belt of Western Germany (the mines of Meggen, Ramsbeck and Rammelsberg).
  30. (1961). The geological structure of the area south of Loch Tummel.
  31. (1970). The Green Beds of the Scottish Dalradian Series: geochemistry, origin, and metamorphism of mafic sediments. doi
  32. (1974). The Kuroko and associated ore deposits of Japan: a review of their features and metallogenesis. doi
  33. (1976). The lead-zinc deposit of
  34. (1973). The North Pole barite deposits, Pilbara Goldfields.
  35. (1969). The ore-minerals and their intergrowths.
  36. (1980). VLF electromagnetic mapping of stratabound barium-zinc mineralization in Dalradian schist near Aberfeldy,
  37. (1977). VLF mapping of geological structure.
  38. (1977). Zeolites in deep-sea sediments.

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.