Johan Herman Kloos

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Johan Herman Kloos (born February 20, 1842 in Amsterdam , † March 23, 1901 in Braunschweig ) was a German-Dutch geologist and paleontologist.

Life

His father was a banker in the family bank in Amsterdam, his paternal grandfather had moved from the Wetterau to Amsterdam. After graduating from high school in Amsterdam in 1860, he studied at the Bergakademien in Freiberg (1861/62) and in 1863/64 at that of Clausthal and geology and mineralogy at the University of Göttingen (1862/63). From 1867 to 1875 he worked in Minnesota for the Saint Paul and Pacific Railroad as a geologist. In 1877 he received his doctorate in Göttingen with Karl von Seebach and also studied mineralogy with Carl Klein in Göttingen . In 1883 he completed his habilitation at the Technical University of Stuttgart (the granite area in the southern Black Forest), taught at the TH Karlsruhe and in 1886, succeeding EJ Ottmer, he became Professor of Geology and Mineralogy at the TH Braunschweig .

He dealt in particular with the geology of the Harz Mountains and its foreland and the Harz Mountains caves. He excavated in the Hermannshöhle (Harz) , with Max Müller taking the first cave photographs. He also dealt with engineering geology and expert reports for the mining industry (potash industry, oil drilling in Banat and Leinetal, search for coal, municipal water supply in Braunschweig and Wolffenbüttel). With K. Martin in Leiden, he examined rocks from the Dutch colonies in Indonesia and he dealt with earthquakes and seaquakes in the Sunda Strait .

In 1888 he became a member of the Leopoldina .

In 1867 he married Marie Kemna in Clausthal, with whom he had nine children. Kloos was a cousin of the poet Willem Kloos .

Fonts

  • Contributions to the geology and paleontology of the Duchy of Braunschweig and the neighboring parts of the country, Braunschweig: Vieweg 1894
  • The Hermannshöhle near Rübeland, 2 volumes, 1889
  • The origin and construction of the mountains is explained using the geological structure of the Harz, Braunschweig 1889
  • The Harz Caves, 1896
  • Geognostic and geographical observations in the state of Minnesota, Berlin: Pormetter 1877

literature

Individual evidence

  1. ^ Member entry by Johan Herman Kloos at the German Academy of Natural Scientists Leopoldina , accessed on October 17, 2015.
personal data
SURNAME Kloos, Johan Herman
BRIEF DESCRIPTION German-Dutch geologist and paleontologist
DATE OF BIRTH February 20, 1842
PLACE OF BIRTH Amsterdam
DATE OF DEATH March 23, 1901
Place of death Braunschweig