|Name||Christian Leopold von Buch|
|Birth||(1774-04-26)April 26, 1774 Stolpe an der Oder,Margraviate of Brandenburg,Prussia(now a part ofAngermünde,Germany)|
|Birth Place||Stolpe an der Oder,Margraviate of Brandenburg,Prussia(now a part ofAngermünde,Germany)|
|Death||(1853-03-04)(aged 78) Berlin,Province of Brandenburg,Prussia|
|Died At||Berlin,Province of Brandenburg,Prussia|
|Famous Research||Jurassic System Andesite Magma mixing Elevation crater theory|
Events Occured in Scienctist Life
Christian Leopold von Buch (April 26, 1774 – March 4, 1853), usually cited as Leopold von Buch, was a German geologist and paleontologist born in Stolpe an der Oder (now a part of Angermünde, Brandenburg) and is remembered as one of the most important contributors to geology in the first half of the nineteenth century.
His Versuch einer mineralogischen Beschreibung von Landeck (Breslau, 1797) was translated into French (Paris, 1805), and into English as Attempt at a Mineralogical Description of Landeck (Edinburgh, 1810).
In 1797, he met Humboldt at Salzburg, and with him explored the geological formations of Styria, and the adjoining Alps.
In the spring of 1798, Buch extended his excursions into Italy, where his faith in the Neptunian theory was shaken.
He saw Vesuvius for the first time in 1799.
Later, in 1805, he had the opportunity, along with Humboldt and Gay Lussac, of witnessing its actual eruption.
In 1802 he examined the extinct volcanoes of Auvergne in the south of France.
The results of all these geological travels were given to the world in the two volumes of his Geognostische Beobachtungen (Berlin, 1802 and 1809).
In 1806, Buch proceeded to Scandinavia and spent two years in examining its physical constitution.
This furnished the materials for his work entitled Reise durch Norwegen und Lappland ("Travels in Norway and Lapland", Berlin, 1810).
In 1815 Buch visited the Canary Islands in company with Christen Smith, a Norwegian botanist.
In the third edition of his On the Origin of Species published in 1861, Charles Darwin added a Historical Sketch giving due credit to naturalists who had preceded him in publishing the opinion that species undergo modification, and that the existing forms of life have descended by true generation from pre-existing forms.
According to Darwin: The celebrated geologist and naturalist, Von Buch, in his excellent 'Description physique des Isles Canaries' (1836, p. 147), clearly expresses his belief that varieties slowly become changed into permanent species, which are no longer capable of intercrossing.
Evolutionary biologist Ernst Mayr has written that Buch was the first naturalist to suggest geographic speciation, in 1825.
In 1825, he was elected a foreign member of the Royal Swedish Academy of Sciences.
This work in turn cites: M. Flourens (1862).