Academic and industry publications and articles by J. Tweedie.

(Most recent first)

Multi-reflex action over a third of a century. GeoDrilling International, June 2009. Dr James Tweedie. GDI Hall of fame article about Claes Ericsson, Reflex Instrument and FlexIT.

Always finding a “better way of doing things”. GeoDrilling International, April 2009. Dr James Tweedie.  GDI Hall of fame article about Richard Braithwaite, Encore Drilling/Encore Borehole Surveys (retired).

Testing times for borehole survey instruments. GeoDrilling International, Issue 133 - June 2007. Dr James Tweedie.

Development of a field computer data logger and its integration with DATAMINE mining software. In Case histories and Methods in Mineral Resource Evaluation, Geol. Soc. Special publication No. 93, pages 125-133. R.I.Onions and J.R.Tweedie. Editor: A.E.Annels.

Development of a Field Computer Based Data Logging System. British Geologist, Volume 16, No.3, Autumn 1990. Page 91. R.I. Onions and Dr. J. R. Tweedie.

Barcoding: A Novel Data Entry System. Mine & Quarry, Volume 19, No. 5, May 1990. Page 17.

Microcomputer Software for Mining and Exploration. Mining Magazine, March 1987. Pages 222-225. James R Tweedie.

Lower Proterozoic stratiform sulphide deposits in Loch Maree Group, Gairloch, northwest Scotland. Trans. Instn. Min. Metall. (sect B: Appl. earth sci), 96, 1987, B128-140. Jones E.M., Rice C. M., and Tweedie J.R., Winners of Consolidated GoldFields Gold medal 1987.

The Calculation and Use of Two Drill Factors from Borehole Survey Data. Mining Magazine, September 1985. Pages 232-236. Dr. J.R.Tweedie.

Lower Proterozoic stratiform Cu-Zn-Au mineralization near Gairloch, Wester Ross, northwest Scotland. Trans. Instn. Min. Metall. (sect B: Appl. earth sci), 92, 1983, B160-161. Jones E.M., Rice C. M., and Tweedie J.R.

Origin of Uranium and other metal enrichments in Helmsdale Granite, eastern Sutherland, Scotland. Trans. Instn. Min. Metall. (sect B: Appl. earth sci), 88, 1979, B145-151. Tweedie J R. Winner of William Frechville Students prize in May 1980.