Karl Ludwig Deffner (8 February 1817 in

Esslingen am Neckar Esslingen am Neckar (Swabian German, Swabian: ''Esslenga am Neckor''; until 16 October 1964 officially '' Eßlingen am Neckar'') is a town in the Stuttgart Region of Baden-Württemberg in southern Germany, seat of the Esslingen (district), Distri ...

– 11 June 1877 in Esslingen am Neckar) was a German

manufacturer Manufacturing is the creation or Production (economics), production of goods with the help of equipment, Work (human activity), labor, machines, tools, and chemical or biological processing or formulation. It is the essence of the secondary se ...

politician A politician is a person who participates in Public policy, policy-making processes, usually holding an elective position in government. Politicians represent the people, make decisions, and influence the formulation of public policy. The roles ...

and

geologist A geologist is a scientist who studies the structure, composition, and History of Earth, history of Earth. Geologists incorporate techniques from physics, chemistry, biology, mathematics, and geography to perform research in the Field research, ...

. He was the son of manufacturer and politician, Carl Christian Ulrich Deffner (1789–1846).

Biography

He received his education at polytechnic schools in

Stuttgart Stuttgart (; ; Swabian German, Swabian: ; Alemannic German, Alemannic: ; Italian language, Italian: ; ) is the capital city, capital and List of cities in Baden-Württemberg by population, largest city of the States of Germany, German state of ...

and

Berlin Berlin ( ; ) is the Capital of Germany, capital and largest city of Germany, by both area and List of cities in Germany by population, population. With 3.7 million inhabitants, it has the List of cities in the European Union by population withi ...

. In 1846, following the death of his father, he took over management of a metal goods factory. In the 1850s he gradually handed over the company's business to his younger brother, Wilhelm Deffner (1829–1897). He is known for his geological investigations of

Württemberg Württemberg ( ; ) is a historical German territory roughly corresponding to the cultural and linguistic region of Swabia. The main town of the region is Stuttgart. Together with Baden and Province of Hohenzollern, Hohenzollern, two other histo ...

, in particular, exploratory studies of the Nördlinger Ries crater and the Filder Graben (located near

Filderstadt Filderstadt (; Swabian German, Swabian: ''Fildorsdadd'') is a town in the Esslingen (district), district of Esslingen in Baden-Württemberg in southern Germany. It is located approximately 13 km south of Stuttgart. Filderstadt is located n ...

). He also made significant contributions towards publication of the geological map of Württemberg. Shortly before his death, he donated his

paleontological Paleontology, also spelled as palaeontology or palæontology, is the scientific study of the life of the past, mainly but not exclusively through the study of fossils. Paleontologists use fossils as a means to classify organisms, measure geolo ...

mineralogical Mineralogy is a subject of geology specializing in the scientific study of the chemistry, crystal structure, and physical (including optical) properties of minerals and mineralized artifacts. Specific studies within mineralogy include the proces ...

and geological collections to the ''Oberrealschule'' in Esslingen. Between 1855 & 1870 he was a member of the ''Württemberg Landtag'' (Liberal Party), and between 1868 & 1870 was part of the ''Zollparlament''.

Selected published works

* ''Die Jura-Versenkung bei Langenbrücken: Geognostische Monographie'', (with

Oscar Fraas Oscar Friedrich von Fraas (17 January 1824 in Lorch (Württemberg) – 22 November 1897 in Stuttgart) was a German clergyman, paleontologist and geologist. He was the father of geologist Eberhard Fraas (1862–1915). Biography He studied theol ...

) 1859. * ''Der Buchberg bei Bopfingen'', 1870. * ''Begleitworte zur geognostischen Specialkarte von Württemberg: Atlasblätter Bopfingen und Ellenberg'', (with Oscar Fraas) 1877. * ''Geognostische Karte von Württemberg'', (with Oscar Fraas and Jakob Hildenbrand).Most widely held works by Carl Deffner
at WorldCat Identities

References

{{DEFAULTSORT:Deffner, Karl 1817 births 1877 deaths 19th-century German geologists People from Esslingen am Neckar