TY - JOUR A1 - Pieper, Herbert T1 - Die Geognosie der Vulkane N2 - The paper deals with Alexander von Humboldt’s researches into the “Geognosy” of volcanoes. In the long run these researches led him to changing his views from the "neptunistic" doctrine of Abraham Gottlob Werner to the concept of "vulcanism". KW - 1799-1804 KW - Abraham Gottlob Werner KW - Geognosie KW - Vulkan Y1 - 2006 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-35646 SN - 1617-5239 SN - 2568-3543 VL - VII IS - 13 SP - 75 EP - 81 PB - Universitätsverlag Potsdam CY - Potsdam ER -