At 03:21 PM 28/04/2005 -0400, Bill Cambray wrote:
>During a discussion on geologic cycles one of our faculty asked where one
>could find the first published diagram of the rock cycle. After a
>preliminary search the oldest we could find was on page 212 in Croneis and
>Krumbein, 'Down to Earth, and introduction to geology' published in 1936 ...
In 1901 William Morris Davis wrote a paper titled "The geographic cycle",
but I think the first "rock cycle" was in a 1907 paper in JGeology by
Charles Leith, a brilliant member of the famous "Wisconsin School" founded
by Charles Van Hise. Leith's paper is titled "The metamorphic cycle", but
at that time "metamorphism" embodied what later became the separate
disciplines of geochemistry and structural geology. In 1913, Leith himself
wrote what I think was the earliest textbook titled "Structural Geology".
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