Paul Ramdohr

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Paul Ramdohr as a student

Paul ramdohr (*  1. January 1890 in Ueberlingen , †  8. March 1985 in Weinheim ) was a German mineralogist , deposits - researchers and a pioneer of ore - microscopy .

Life

Paul Georg Carl Wilhelm Friedrich Ramdohr was the great-great-grandson of Johann Gottlieb Ramdohr (1741–1785) from the Aschersleben branch of the Central German Ramdohr family . Paul Ramdohr was born as the son of the pharmacist Albert Johannes Paul Ramdohr and the winery owner's daughter Louise Pauline Ramdohr, nee. Goebel, born in Westhofen in Überlingen in 1890 . After moving to Darmstadt , where his father bought the Einhorn-Apotheke in 1901, attended school at the Ludwig-Georgs-Gymnasium in Darmstadt and studied at the Ruprecht-Karls-Universität Heidelberg from 1909. Here Ramdohr joined the Leonensia student union . Ramdohr did his doctorate in Göttingen in 1919 with Otto Mügge with a dissertation on basalts from the Blauer Kuppe near Eschwege , as his work on the doctorate had been delayed due to his participation in the First World War . A short time later, he completed his habilitation with Wilhelm Bruhns with his work on gabbros in the Böllstein / Brombachtal area ( Böllsteiner Odenwald ).

After a four-year term as Associate Professor of Mineralogy and petrography in Clausthal , where his interest in economic geology was and microscopic examination awakened by Erzanschliffen and determined the rest of his work, he followed 1926 the call to the Technical University of Aachen and received a there Institute of Mineralogy , Petrography and deposit theory. In 1929 Ramdohr took part in the International Geological Congress in Pretoria and combined this with extensive research trips to South Africa . In 1930 he traveled to the USA and visited numerous mines here . Even Australia was ahead of his scientific curiosity not sure.

Among other things, this earned him the nickname “Truffle Pig”, which reflects his great talent for smelling rare and beautiful minerals on heaps and in pits. In a keynote address for the geological congress in Pretoria, Professor Shand jokingly complained about Paul Ramdohr's passion for collecting and a nightmare related to it. Shand said: "He wanted to go on an excursion to the Bushveld with students, but only found a sign that said 'This is where the Bushveld stood before Ramdohr took it to Germany'."

In 1934 Ramdohr left the Aachen University and moved to the Friedrich Wilhelms University in Berlin . Karl Hugo Strunz was his assistant in Berlin from 1935 to 1950. Ramdohr only joined the NSDAP on April 1, 1941 ( membership no. 8.737.087).

After a call to Australia was rejected, Paul Ramdohr moved to Heidelberg in 1951 , where he was given the chair of mineralogy at the local university , which he held until his retirement in 1958.

After that, Ramdohr turned to a new area, the study of meteorites . He carried out these investigations at the Max Planck Institute for Nuclear Physics in Heidelberg, where a working group of physicists carried out meteorite research. Above all, he studied the ore microscopy of stone meteorites , discovered several new minerals and was the first to describe the paragenesis of many meteoritic ore minerals in more detail .

Paul Ramdohr had a fragment of the " Mundrabilla " iron meteorite ( Mundrabilla II ) found in Australia brought to Germany by a German naval ship visiting Adelaide in the 1960s with the approval of the authorities. The meteorite, which weighs less than 6 tons, was sawed up at the Max Planck Institute in Heidelberg. One disc was sent to Moscow and another to London for further research.

After the first moon landing, NASA was the only German mineralogist to send him moon rocks for examination.

Paul Ramdohr was married and the father of four sons and one daughter. He died in the Weinheim district of Hohensachsen and was buried on March 13, 1985 in the foothills of the Odenwald . The city councilor and former mayor of Hohensachsen from 2001 to 2004, Otfried Ramdohr (SPD), is a direct descendant of him.

Works

  • 1926: Crystallography , Göschen-Band together with Willy Bruhns.
  • 1931–1934: Textbook of ore microscopy. Volume 1 and 2 together with Hans Schneiderhöhn .
  • 1936: Textbook of Mineralogy together with Friedrich Klockmann .
  • 1924: Observations on opaque ores.
  • 1928: About the mineral inventory and the structures of the ores of the Rammelberg.
  • 1948: Textbook of Mineralogy. 13th edition together with Klockmann.
  • 1950: The ore minerals and their adhesions. 1st edition.
  • 1954: Textbook of Mineralogy. 14th edition together with Klockmann.
  • 1954: Mineral and ore deposit studies. Volume 1 and 2 together with Heinrich Huttenlocher .
  • 1955: petrography. Göschen volume 4th edition.
  • 1965: crystallography. Göschen band.
  • 1969: The ore minerals and their intergrowth.
  • 1973: The opaque minerals in stony meteorites.
  • 1975: The ore minerals and their adhesions. 4th edition.
  • 1978: Textbook of Mineralogy, 16th edition together with Klockmann and Karl Hugo Strunz.
  • 1980: The ore minerals and their intergrowth. 2nd Edition (English translation of the 4th edition).

Honors

Friedrich Ahlfeld described a new sulfide mineral in 1930 and named it ramdohrite in his honor .

In 1990, on the occasion of Ramdohr's 100th birthday, a bronze bust created by Professor Kindermann was inaugurated in the Mineralogical Institute in Aachen.

Paul ramdohr honor founded the German Mineralogical Society (DMG) the contracts awarded annually to young DMG members (below 32 years) and 1,000 euros in prize Paul-Ramdohr price . This price was set up between 1992 and 1994 and paid for with funds from the Paul Ramdohr Foundation.

Honorary doctorates

  • 1955: Dr.-Ing. E. h. ( TU Berlin )
  • 1960: Dr. rer. nat. hc (RWTH Aachen)
  • 1968: Ph. D. Es. Sci. (University of Nancy )
  • 1969: Dr. rer. nat. hc ( TU Clausthal )
  • 1973: Dr.-Ing. de Minas, hc ( Madrid )

Awards and Medals

literature

  • Ludwig Gottlieb Ramdohr: Stamm-Tafeln of the families Ramdohr. Reproduced as a manuscript. Gotha 1893, pp. 86-95.
  • Werner Schreyer: Memorial of Paul Ramdohr January 1, 1890 – March 8, 1985. In: American Mineralogist. Volume 71. Chantilly, VA (USA) 1986, ISSN  0003-004X , pp. 839-840 ( rruff.info [PDF; 296 kB; obituary, English]).
  • Ulrich Kalkmann: The Technical University of Aachen in the Third Reich (1933–1945) (= Aachen studies on technology and society. Volume 4). Verlag Mainz, Aachen 2003, ISBN 3-86130-181-4 , p. 489 ( preview in Google book search).
  • Michael Engel :  Ramdohr, Paul Georg Karl. In: New German Biography (NDB). Volume 21, Duncker & Humblot, Berlin 2003, ISBN 3-428-11202-4 , p. 130 ( digitized version ).

Web links

Individual evidence

  1. ^ Commemorative letter to Paul Ramdohr on his 100th birthday. In: Erzmetall. Volume 43, 6/1990, ISSN  0044-2658 , p. 263.
personal data
SURNAME Ramdohr, Paul
BRIEF DESCRIPTION German mineralogist, deposit researcher, pioneer of ore microscopy
DATE OF BIRTH January 1, 1890
PLACE OF BIRTH Überlingen
DATE OF DEATH March 8, 1985
Place of death Weinheim