| Buch, Leopold von
Outstanding German geologist of the first half of the 19th century. Together with Alexander von Humboldt he belonged among the most devoted disciples of A.G. Werner at the Mining Academy in Freiberg. He traveled widely, was interested in geology, mineralogy and volcanism in particular. He became the opponent of neptunism, advocated by his mentor A.G.Werner, and introduced a new theory of plutonism, which he applied to the whole range of mountain chains, namely the Alps. He wrote a number of paleontological papers on cephalopods, brachiopods, etc. In 1883, he published a pioneering work on the Jurassic system in Germany and for the first time subdivided the Jurassic into three groups: black, brown, and white.
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born 26th April 1774, castle Stolpe near Angermúnde (northern Brandenburg), died 4th March 1853, Berlin
