Ernst Laufer

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Ernst Laufer (born July 31, 1850 in Eisenach , † February 18, 1893 in Jena ) was a German geologist.

Life

Laufer, the son of the master craftsman in Eisenach, was interested in natural research (especially geology and botany) as a teenager, encouraged by his teacher Ferdinand Senft . He studied natural sciences, especially chemistry, mineralogy and geology, at the University of Jena , where he was an assistant in the laboratory of the chemist Johann Georg Anton Geuther and the geologist Ernst Erhard Schmid . In 1873 he received his doctorate in chemistry (on the effect of alcohol-free sodium ethylate and acetic acid salts on epichlorohydrin). In 1874 he won a prize assignment with an essay on quartz porphyries in the area around Ilmenau . At the end of 1873 he became a member of the Prussian Geological State Institute (PGLA) and initially mapped in the northern German lowlands under the direction of Gottlieb Berendt . In 1879 he was promoted from auxiliary geologist to assistant and in 1886 state geologist (at the same time with his colleague Felix Wahnschaffe ). In 1884 he fell ill with a brain disease from which he apparently recovered, but then suffered a relapse in 1887 and had to retire in 1890.

In 1877 he became a corresponding member of the Grand Ducal Saxon Society for Mineralogy, Geology and Petrefactology in Jena.

plant

He dealt mainly with Quaternary geology and soil science. For example, he created soil maps of Babelsberg and the vineyards of Werder (Havel) . At the PGLA, he was in the group of the first geologists who mapped the northern German lowlands, for which agronomic and pedological recordings were made and new laboratory methods (including chemical ones) had to be developed. He also found (like Otto Martin Torell previously in the chalk pits of Rüdersdorf near Berlin and confirming this) evidence of glacial formations in the area around Berlin. On the one hand there were bulges ( pocket bottom or Brodelboden) in the clay pits of Glindow and Petzow , on the other hand there were glacier scrapes in septaries of the Septarientons near Hermsdorf (near Ruhland) , which is located there directly under till.

Fonts

  • The Werderschen vineyards; a study on the knowledge of the Brandenburg soil, treatises on the special geological map of Prussia and the Thuringian states. Volume 5, Issue 3, 1884 (110 pages)
  • The Babelsberg. In: Yearbook Preuss. Geolog. Landesanstalt für 1880. Berlin 1881, pp. 294–334
  • with Felix Wahnschaffe: Investigation of the soil in the area around Berlin. In: Communications from the Laboratory for Soil Science of the Royal Prussian Geological State Institute, treatises on geolog. Special map of Prussia. Volume 3, Issue 2, 1881
  • The storage conditions of the diluvial clay marl from Werder and Lehnin . In: Yearbook of the Royal Prussian Geological State Institute and Mining Academy for 1881. Berlin 1882, pp. 501-522
  • About the appearance of glacier cuts and scratches on oligocene septaries from Hermsdorf near Berlin. In: New yearbook for mineralogy, geognosy, geology and petrefactology. 1881, Volume 1, pp. 1-2
  • Outcrops in the Diluvium of the Province of Brandenburg. In: Journal of the German Geological Society. Volume 34, 1882, pp. 202-204
  • The Diluvium in the northeastern part of the province of Hanover. In: Yearbook Preuss. Geolog. Landesanstalt für 1883. Berlin 1884, pp. 310–328
  • About the storage, petrographic quality and extraction of the lower Diluvial marl in Hanover. In: Yearbook of the Royal Prussian Geological State Institute and Bergakademie. 1883, pp. 594-597

He wrote the geological maps 1: 25,000 of Königs Wusterhausen , Friedersdorf , Bernau near Berlin and Grüntal (Sydower Fließ) and with Berendt those of Potsdam , Fahrland , Oranienburg , Hennigsdorf , Großbeeren , with Berendt and Dulk those of Werder (Havel) with Konrad Keilhack that of Wandlitz , Schönerlinde , Klein-Mutz , Nassenheide , Lehnin , with Berendt and Scholz of Zehdenick and Liebenwalde , and with Louis Beushausen of Groß Kreutz (Havel) and Groß-Wusterwitz .

Web links

Individual evidence

  1. ↑ Published in the journal of the German Geological Society, Volume 28, 1876, pp. 22–48
personal data
SURNAME Laufer, Ernst
BRIEF DESCRIPTION German geologist
DATE OF BIRTH July 31, 1850
PLACE OF BIRTH Eisenach
DATE OF DEATH February 18, 1893
Place of death Jena