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Paul Choffat
Léon Paul Choffat (14 May 1849 – 6 June 1919) was a Swiss-born geologist, noted as a stratigrapher and paleontologist, who distinguished himself as a study of the pioneer of paleontology of the Jurassic and physical geography of Portugal. Having started his career as an associate professor of animal paleontology at the Federal Polytechnic School of Zurich, (Now ETH Zurich) From 1878 he settled in Portugal, where he spent most of his scientific career and where he died. He is considered a key figure in the history of Portuguese Geology, whose studies are still relevant to the knowledge of the geology of Portugal.
Born in Porrentruy, canton of Jura in French-speaking Switzerland, from a Soubey (Jura) family, he completed his primary and secondary studies in his homeland. After the high school, left for Besançon, France, where he was employed in a bank house.
During his stay in Besançon he integrated with the local intelligentsia, establishing friendship with various naturalists and developing a great interest in geology. He was a member of the prestigious Société d'Emulation du Doubs. In 1871 he returned to Switzerland and the following year enrolled in the Chemistry and Natural Sciences course at the Federal Polytechnic School of Zurich and the University of Zurich. During his studies he became particularly interested in Paleontology, being a student, among others, of professors Arnold Escher von der Linth and Albert Heim.
Having completed the course in 1876, the distinctive and brilliant manner in which the course was attended, as evidenced by the high standards of consideration it received from its teachers, led to that honorable appointment that same year as an aggregate professor of Animal Paleontology at the Federal Polytechnic School. from Zurich, where he had studied. He then began a research course in the field of paleontology, to which he devoted himself full-time, applying the early years of his career to the study of the Jurassic terrain of France and Switzerland, a subject in which he became an expert. During this period he met numerous geologists and paleontologists, contacts that he maintained throughout his scientific life.
During the International Congress of Geology, held in Paris in 1878, he met Portuguese geologist Carlos Ribeiro (1813–1882), president of the Kingdom Geological Commission, who invited him to visit Portugal for the special purpose of studying the stratigraphy of Jurassic terrain. Given that at the time I suffered from pharyngitis Chronicle, who had been advised to cure in a dry, sunny climate, decided to accept the invitation, arriving in Lisbon in October 1878, proposing to stay in Portugal for three months, long enough to cure her illness. However, he would eventually stay in Portugal for about 40 years, until the end of his life, starting a research course on the geology of Portugal that would make him famous.
Working for many years as an independent researcher, it was not until 1883 that he was officially hired as a geologist for the Geological Commission of the Kingdom (precursor of the Geological Services of Portugal). He initially devoted himself to the study of Mesozoic formations, but then broadened his field of interest, performing multiple works of applied geology, including research and characterization of mineral waters from the Mesozoic regions, and studies of western tectonics. of the Iberian Peninsula. He also devoted himself to the study of prehistoric lithic structures, a matter in which he was in many ways pioneer in Portugal.
Also he devoted himself to geological mapping, one of the authors of the geological map of the country on the scale 1:500,000, published in 1899, which came to replace the one that had been published in 1876 by Carlos Ribeiro and Delgado. He played an important role in the elaboration of this letter, one of the best works of Portuguese geological cartography, collaborating intensely with Nery Delgado, the military engineer who at the time chaired the Geological Commission and headed the Geological Works Section. The cartographic studies he then carried out allowed him to publish a tectonic chart and a hypsometric chart of Portuguese territory. In the memory accompanying the hypsometric chart includes a set of studies on the physical geography of the Portuguese territory, still considered relevant today. In addition to the works of Portuguese theme, in the period prior to his coming to Portugal, he published several works concerning the paleontology and stratigraphy of the French and Swiss Jurassic lands, among which are worth mentioning the works that make up the work Esquisse du callovien et de The Oxfordien of the Middle Jura: Suivie of a Supplementary Aid to the Acanthicus Ammonites of the Occidental Jura, originally published in volumes III and IV of the Annals of the Geological Society of France.
Paul Choffat's hundreds of studies on Portuguese geology cover a wide range of themes, from the secondary formations of Portugal, to hydrogeology and tectonics, to various aspects of geotechnics (at the time viewed as applied geology). Among the various publications of his own, there are three general studies of great relevance to the knowledge of the geology of Portugal, one on the Jurassic and two on the Cretaceous:
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Paul Choffat
Léon Paul Choffat (14 May 1849 – 6 June 1919) was a Swiss-born geologist, noted as a stratigrapher and paleontologist, who distinguished himself as a study of the pioneer of paleontology of the Jurassic and physical geography of Portugal. Having started his career as an associate professor of animal paleontology at the Federal Polytechnic School of Zurich, (Now ETH Zurich) From 1878 he settled in Portugal, where he spent most of his scientific career and where he died. He is considered a key figure in the history of Portuguese Geology, whose studies are still relevant to the knowledge of the geology of Portugal.
Born in Porrentruy, canton of Jura in French-speaking Switzerland, from a Soubey (Jura) family, he completed his primary and secondary studies in his homeland. After the high school, left for Besançon, France, where he was employed in a bank house.
During his stay in Besançon he integrated with the local intelligentsia, establishing friendship with various naturalists and developing a great interest in geology. He was a member of the prestigious Société d'Emulation du Doubs. In 1871 he returned to Switzerland and the following year enrolled in the Chemistry and Natural Sciences course at the Federal Polytechnic School of Zurich and the University of Zurich. During his studies he became particularly interested in Paleontology, being a student, among others, of professors Arnold Escher von der Linth and Albert Heim.
Having completed the course in 1876, the distinctive and brilliant manner in which the course was attended, as evidenced by the high standards of consideration it received from its teachers, led to that honorable appointment that same year as an aggregate professor of Animal Paleontology at the Federal Polytechnic School. from Zurich, where he had studied. He then began a research course in the field of paleontology, to which he devoted himself full-time, applying the early years of his career to the study of the Jurassic terrain of France and Switzerland, a subject in which he became an expert. During this period he met numerous geologists and paleontologists, contacts that he maintained throughout his scientific life.
During the International Congress of Geology, held in Paris in 1878, he met Portuguese geologist Carlos Ribeiro (1813–1882), president of the Kingdom Geological Commission, who invited him to visit Portugal for the special purpose of studying the stratigraphy of Jurassic terrain. Given that at the time I suffered from pharyngitis Chronicle, who had been advised to cure in a dry, sunny climate, decided to accept the invitation, arriving in Lisbon in October 1878, proposing to stay in Portugal for three months, long enough to cure her illness. However, he would eventually stay in Portugal for about 40 years, until the end of his life, starting a research course on the geology of Portugal that would make him famous.
Working for many years as an independent researcher, it was not until 1883 that he was officially hired as a geologist for the Geological Commission of the Kingdom (precursor of the Geological Services of Portugal). He initially devoted himself to the study of Mesozoic formations, but then broadened his field of interest, performing multiple works of applied geology, including research and characterization of mineral waters from the Mesozoic regions, and studies of western tectonics. of the Iberian Peninsula. He also devoted himself to the study of prehistoric lithic structures, a matter in which he was in many ways pioneer in Portugal.
Also he devoted himself to geological mapping, one of the authors of the geological map of the country on the scale 1:500,000, published in 1899, which came to replace the one that had been published in 1876 by Carlos Ribeiro and Delgado. He played an important role in the elaboration of this letter, one of the best works of Portuguese geological cartography, collaborating intensely with Nery Delgado, the military engineer who at the time chaired the Geological Commission and headed the Geological Works Section. The cartographic studies he then carried out allowed him to publish a tectonic chart and a hypsometric chart of Portuguese territory. In the memory accompanying the hypsometric chart includes a set of studies on the physical geography of the Portuguese territory, still considered relevant today. In addition to the works of Portuguese theme, in the period prior to his coming to Portugal, he published several works concerning the paleontology and stratigraphy of the French and Swiss Jurassic lands, among which are worth mentioning the works that make up the work Esquisse du callovien et de The Oxfordien of the Middle Jura: Suivie of a Supplementary Aid to the Acanthicus Ammonites of the Occidental Jura, originally published in volumes III and IV of the Annals of the Geological Society of France.
Paul Choffat's hundreds of studies on Portuguese geology cover a wide range of themes, from the secondary formations of Portugal, to hydrogeology and tectonics, to various aspects of geotechnics (at the time viewed as applied geology). Among the various publications of his own, there are three general studies of great relevance to the knowledge of the geology of Portugal, one on the Jurassic and two on the Cretaceous: