In the May issue of the Bulletin, Volume 12, Number 5, is a paper by Robert Wesley Brown entitled “The Origin of the Folds of Osage County, Oklahoma.” Disregarding the author’s summary dismissal of various alternative hypotheses that might explain the origin of the folds (and faults) of Osage County, the following points for and against the hypothesis advanced will be here tested by the laws of dynamics.
(1) As regards Mead’s classic experiment, only the final result of shear folds is to be observed in the photographs published. Experiments made under shearing stress by the present writer, with...
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