First Use of Current-Bedding to Determine Orientation of Strata


IN a recent letter1, Dr. Archie Lamont directed attention to John Kelly's account, published in 1864, of the use of current-bedding to decide which way up strata were lying. Kelly gave the credit for the discovery of the method to Patrick Ganly. Ganly had given a description of it to the Geological Society of Dublin in 18562, but he had been using it much earlier.

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  1. 1

    Nature, 145, 1016 (1940).

  2. 2

    "Observations on the Structure of Strata", J. Geol. Soc. Dublin, 7, 164 (1856).

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