01638cam a22003493u 45000010005000000030007000050050017000120060002000290070005000310080041000360400011000770410017000880500007001051000032001122450016001442640051001603000047002113360026002583370026002843380036003105000112003465000031004585080033004895200562005225340045010846530034011296530028011636530014011916530012012056530029012178560042012462690UtSlPG20260610133101.0mcr n260607r2001||||utu|||||o|||||||||||||| d  aUtSlPG 7aen2iso639-1 4aQE1 aDarwin, Charles,d1809-188210aCoral Reefs 1aSalt Lake City, UT :bProject Gutenberg,c2001  a1 online resource :bmultiple file formats  atextbtxt2rdacontent  acomputerbc2rdamedia  aonline resourcebcr2rdacarrier  aWikipedia page about this book: https://en.wikipedia.org/wiki/The_Structure_and_Distribution_of_Coral_Reefs  aRelease date is 2001-06-01  aSue Asscher and David Widger  a"Coral Reefs" by Charles Darwin is a scientific monograph published in 1842 that presents his groundbreaking theory of how coral reefs and atolls form. Darwin conceived this theory during the Beagle voyage before even seeing a coral island, proposing that vast areas of ocean crust rise and fall over immense time periods. His observations explained how fringing reefs transform into barrier reefs and eventually into atolls as land slowly subsides beneath the sea, solving a major scientific puzzle of his era. (This is an automatically generated summary.)  nOriginal publication data not identified  aBeagle Expedition (1831-1836)  aCoral reefs and islands  aVolcanoes  aIslands  aGeology -- South America40uhttps://www.gutenberg.org/ebooks/2690