02679cam a22003373u 45000010005000000030007000050050017000120060002000290070005000310080041000360400011000770410017000880500007001051000032001122450177001442640051003213000047003723360026004193370026004453380036004715000031005075080100005385201455006385340045020936530034021386530029021726530037022017000044022388560042022829990017023249824UtSlPG20260610133236.0mcr n260607r2006||||utu|||||o|||||||||||||| d  aUtSlPG 7afr2iso639-1 4aQE1 aDarwin, Charles,d1809-188210aObservations Géologiques sur les Îles Volcaniques Explorées par l'Expédition du "Beagle" :bEt Notes sur la Géologie de l'Australie et du Cap de Bonne-Espérance 1aSalt Lake City, UT :bProject Gutenberg,c2006  a1 online resource :bmultiple file formats  atextbtxt2rdacontent  acomputerbc2rdamedia  aonline resourcebcr2rdacarrier  aRelease date is 2006-02-01  aProduced by David Starner, Anne Dreze, Marc D'Hooghe and the PG Online Distributed Proofreaders  a"Observations Géologiques sur les Îles Volcaniques Explorées par l'Expédition du « Beagle »" by Charles Darwin is a scientific publication written during the mid-19th century. This work is part of a trilogy discussing geological observations made during Darwin's famous voyage on the Beagle, focusing specifically on volcanic islands, the geological features of Australia, and the Cape of Good Hope. The likely topic centers on the geological formations and phenomena observed by Darwin during his explorations of various volcanic regions, particularly in the Atlantic.  At the start of the work, Darwin introduces the foundational geology of the island of San Thiago, which is part of the Cape Verde archipelago. He meticulously describes the geological layers he encounters, detailing the sedimentary and volcanic rock formations, their mineral compositions, and the implications of their structures on volcanic activity. In this initial chapter, he highlights the interplay between basaltic lava and calcareous deposits, emphasizing the significance of his observations in challenging existing geological theories, such as the "crater of elevation" concept. This opening portion sets the stage for a deeper examination of the geological principles that underpin his arguments while showcasing his keen observational skills and the influence of his earlier studies on his geological theories. (This is an automatically generated summary.)  nOriginal publication data not identified  aBeagle Expedition (1831-1836)  aGeology -- South America  aVolcanoes -- Southern Hemisphere1 aRenard, Alphonse-François,d1842-190340uhttps://www.gutenberg.org/ebooks/9824  c51445d51445