LIBROS DEL AUTOR: allan pentecost

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  • Travertine
    Allan Pentecost
    uring the spring of 1960, an uncle showed me a ’petrifying spring’ near Plaxtol in Kent Dwhere twigs had been encased in a calcareous jacket. A twig was collected and having - cently been given I. Evan’s Observer’s Book of Geology by my parents, I found a photograph of another petrifying spring and an explanation of its origin. In those days, Derbyshi...
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