Georges Deicha

Georges Deicha (1917 – 2011) was a French geologist and mineralogist, known for his pioneering work on fluid inclusions.

Deicha was a student in Paris at the Sorbonne when he started to investigate the crystallization of gypsum in the Paris basin. He wrote his first doctoral thesis on this topic and on the study and interpretation of primary fluid inclusions in minerals and rocks, an area that had until then received little study.

Deicha worked for his scientific career in the CNRS (French National Centre for Scientific Research). He retired with the title "Directeur de recherche de classe exceptionnelle".

Fluid inclusions
In the Laboratory of Applied Geology of Paris, Deicha developed various technical means for detecting, monitoring and analyzing inclusions such as crushing rock under a microscope.

In 1960, at the International Geological Congress in Copenhagen, Deicha founded, together with Edwin W. Roedder (US) and Nikolai P. Ermakov (USSR), the Commission on Ore-Forming Fluids in Inclusions (COFFI). In 1962, he participated in the development of electronic fractography. The term "Deicha's method" became standard, in particular in Russian literature.

Recognition

 * Deicha was elected honorary member of several societies of mineralogy and crystallography.
 * The centenary of Deicha's birth was commemorated in 2017 in Nancy, France at the biennial convention of European Current Researches on Fluid Inclusions and in various publications

Artistic activity
Deicha, besides his scientific work, was a sculptor, mainly using bas-relief technique. Deicha created medals representing V. Agafonov, P. Milyukov, Leon Bertrand, Ami Boué, Louis Barrabe, Pierre Pruvost, and Raymond Furon. Most of these medals are used as awards by the French Geological Society.