Titre : Neue Theorie von der Entstehung der Gänge, ...
Éditeur : Freiberg: gedruckt und verlegt in der Gerlachischen Buchdrukkerei, 1791.
Date d'édition : 1791
8vo, pp. xxxx, 256. Contemporary (original?) blue boards, faintly stained and worn at ends of spine, old paper label on spine, red edges, a plain but very nice copy. FIRST EDITION. This work by Werner, who is known as the father of historical geology, describes his ?theory of the origin of ore deposits which would be consistent with his general theory of the origin of the earth?s crust? Many of its elements were of lasting value. Werner formulated basic questions about the origin and history of veins and their contents, established criteria for determining the relative age of veins and vein materials, and presented a comparative study of the structure of veins and rock masses? Perhaps the most important contribution of Von der Entstehung der Gänge, however, was that it made the study of vein formation an integral part of historical geology? (DSB, XIV, pp. 262?263). ??Werner's work proved of the highest value in mineralogical science, since it contained a large store of accurate information about mineral veins, and suggested new methods of determining the relative age of vein-deposits? (Zittel, History of geology, p. 60, etc.). See also Geikie, The founders of geology, pp. 127?128, etc. N° de réf. du libraire 2100
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